﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xsi:schemaLocation="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2016v3.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2018-08-14T11:45:48-05:00</ReturnTs>
    <TaxPeriodEndDt>2017-09-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmName>
        <BusinessNameLine1Txt>BDO USA LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>ONE INTERNATIONAL PLACE</AddressLine1Txt>
        <CityNm>BOSTON</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02110</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2016-10-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>042323457</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>LAHEY CLINIC FOUNDATION INC</BusinessNameLine1Txt>
      </BusinessName>
      <InCareOfNm>% TIMOTHY O'CONNOR</InCareOfNm>
      <BusinessNameControlTxt>LAHE</BusinessNameControlTxt>
      <PhoneNum>7817445100</PhoneNum>
      <USAddress>
        <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
        <CityNm>BURLINGTON</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>01805</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>TIMOTHY O'CONNOR</PersonNm>
      <PersonTitleTxt>EVP, CFO &amp; TREASURER</PersonTitleTxt>
      <PhoneNum>7817445100</PhoneNum>
      <SignatureDt>2018-08-15</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>JEFFREY ROGERS</PreparerPersonNm>
      <PTIN>P01074284</PTIN>
      <PhoneNum>6174220700</PhoneNum>
    </PreparerPersonGrp>
    <TaxYr>2016</TaxYr>
    <BuildTS>2022-09-23 18:48:47Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="10">
    <IRS990 documentId="IRS990" referenceDocumentId="IRS990ScheduleO">
      <PrincipalOfficerNm>HOWARD R GRANT JD MD</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
        <CityNm>BURLINGTON</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>01805</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>26348026</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>www.LAHEY.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1963</FormationYr>
      <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      <ActivityOrMissionDesc>SEE SCHEDULE O</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>23</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>16</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>1</TotalEmployeeCnt>
      <TotalVolunteersCnt>16</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>132977</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>3576661</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>3203315</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>0</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>0</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>6001086</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>23144581</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>0</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>130</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>9577747</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>26348026</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>0</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>0</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>0</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>0</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>6525272</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>0</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>6525272</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>9577747</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>19822754</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>1322022569</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>1342093084</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>887092976</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>879782800</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>434929593</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>462310284</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>SEE SCHEDULE O</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>0</ExpenseAmt>
      <RevenueAmt>3203315</RevenueAmt>
      <Desc>LAHEY CLINIC FOUNDATION, INC., (FOUNDATION) IS THE SOLE CORPORATE MEMBER OF LAHEY CLINIC HOSPITAL, INC. (HOSPITAL), and LAHEY CLINIC, INC. (CLINIC). THE FOUNDATION HOLDS CAPITAL ASSETS, INVESTMENTS, AND DEBT TO PROVIDE ASSISTANCE TO THE HOSPITAL AND CLINIC FOR THE PROVISION OF PATIENT HEALTH CARE SERVICES, PATIENT EDUCATION, COMMUNITY BENEFITS AND COMMUNITY SERVICE PROGRAMS, CONTINUING EDUCATION OF HEALTH CARE PROVIDERS, AS WELL AS HEALTH CARE RESEARCH ACTIVITIES.</Desc>
      <TotalProgramServiceExpensesAmt>0</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="IRS990ScheduleA">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="IRS990ScheduleB">true</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="IRS990ScheduleD">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="IRS990ScheduleD">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="IRS990ScheduleD">true</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="IRS990ScheduleD">false</CreditCounselingInd>
      <TempOrPermanentEndowmentsInd referenceDocumentId="IRS990ScheduleD">true</TempOrPermanentEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="IRS990ScheduleD">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="IRS990ScheduleD">true</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="IRS990ScheduleD">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="IRS990ScheduleD">true</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="IRS990ScheduleD">true</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="IRS990ScheduleD">false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD">false</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD">true</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd referenceDocumentId="IRS990ScheduleF">true</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd referenceDocumentId="IRS990ScheduleF">false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd referenceDocumentId="IRS990ScheduleF">false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>false</FundraisingActivitiesInd>
      <GamingActivitiesInd>false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="IRS990ScheduleJ">true</ScheduleJRequiredInd>
      <TaxExemptBondsInd referenceDocumentId="IRS990ScheduleK">true</TaxExemptBondsInd>
      <InvestTaxExemptBondsInd>false</InvestTaxExemptBondsInd>
      <EscrowAccountInd>false</EscrowAccountInd>
      <OnBehalfOfIssuerInd>false</OnBehalfOfIssuerInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWithOfficerEntInd>false</BusinessRlnWithOfficerEntInd>
      <DeductibleNonCashContriInd referenceDocumentId="IRS990ScheduleM">true</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd referenceDocumentId="IRS990ScheduleM">false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd referenceDocumentId="IRS990ScheduleR">false</DisregardedEntityInd>
      <RelatedEntityInd referenceDocumentId="IRS990ScheduleR">true</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>true</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd referenceDocumentId="IRS990ScheduleR">true</TransactionWithControlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd referenceDocumentId="IRS990ScheduleR">false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd referenceDocumentId="IRS990ScheduleR">false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>0</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>1</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>true</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>true</UnrelatedBusIncmOverLimitInd>
      <Form990TFiledInd>true</Form990TFiledInd>
      <ForeignFinancialAccountInd>true</ForeignFinancialAccountInd>
      <ForeignCountryCd>CA</ForeignCountryCd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>false</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>false</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>23</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>16</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>true</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>true</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>true</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>true</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>true</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>true</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>true</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>true</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>true</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>true</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>true</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>true</InvestmentInJointVentureInd>
      <WrittenPolicyOrProcedureInd>true</WrittenPolicyOrProcedureInd>
      <StatesWhereCopyOfReturnIsFldCd>MA</StatesWhereCopyOfReturnIsFldCd>
      <OtherWebsiteInd>X</OtherWebsiteInd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>TIMOTHY O'CONNOR</PersonNm>
        <PhoneNum>7817445100</PhoneNum>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>howard r grant jd md</PersonNm>
        <TitleTxt>TRUSTEE/Officer/PRESIDENT/CEO</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>50.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>1089242</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>279685</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CHRISTINE WINGER MD</PersonNm>
        <TitleTxt>TRUSTEE/PHYSICIAN</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>479190</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>37762</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>roger l jenkins md</PersonNm>
        <TitleTxt>trustee/physician</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>626008</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>68129</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>richard s d'agostino md</PersonNm>
        <TitleTxt>TRUSTEE/DIVISION CHAIR</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>554854</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>65673</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>andrew g villanueva md</PersonNm>
        <TitleTxt>TRUSTEE/CMO LHMC</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>351508</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>40851</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>betsey crawford md</PersonNm>
        <TitleTxt>trustee/physician</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>243878</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>36805</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>arthur p mourtzinos md</PersonNm>
        <TitleTxt>trustee/physician</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>490219</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>73149</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>rebecca c yang md</PersonNm>
        <TitleTxt>trustee/physician</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>370296</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>53121</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>eric m bailey</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>craig r benson</PersonNm>
        <TitleTxt>trustee thru 2/13/2017</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ann marie connolly</PersonNm>
        <TitleTxt>trustee/chair</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>james d irving</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>j william poduska</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>windle b priem</PersonNm>
        <TitleTxt>trustee thru 2/13/2017</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>stuart reese</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>carolyn ain</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>jane c edmonds</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>deborah mckenna</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>david wajsgras</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>edward eskandarian</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Roger W Crandall</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>David Lang</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Linda McGoldrick</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Greg Schmergel</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Alice A Hunter MD</PersonNm>
        <TitleTxt>Trustee/Physician</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>554114</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>57996</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>timothy o'connor</PersonNm>
        <TitleTxt>Officer/EVP/CFO &amp; Treasurer</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>50.0</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>619326</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>185344</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>david G spackman JD</PersonNm>
        <TitleTxt>Officer/SVP GOV AFFAIRS &amp; Gen</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>50.0</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>429989</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>52159</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>maryellen lear</PersonNm>
        <TitleTxt>Officer/Director/LEGAL SUPPOR</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>100252</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>26858</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>peter R lloyd</PersonNm>
        <TitleTxt>Officer/VP CORPORATE FINANCE</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>356878</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>57951</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>William Robertson</PersonNm>
        <TitleTxt>VP &amp; Chief Facilities Officer</TitleTxt>
        <AverageHoursPerWeekRt>1.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.0</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>324660</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>54298</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DAVID M BARRETT md</PersonNm>
        <TitleTxt>EMERITUS CHIEF EXEC. OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>0.0</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
        <FormerOfcrDirectorTrusteeInd>X</FormerOfcrDirectorTrusteeInd>
        <ReportableCompFromOrgAmt>2411680</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>2411680</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>6590414</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>1089781</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>1</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>true</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>true</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>Nyes Ledge Capital Management LLC</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>175 Federal Street Ste 730</AddressLine1Txt>
            <CityNm>BOSTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02110</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>INVESTMENT MGMT FEES</ServicesDesc>
        <CompensationAmt>259000</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>Marathon Asset Management LLP</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <ForeignAddress>
            <AddressLine1Txt>ORION HOUSE 5 UPPER ST ST MARTI</AddressLine1Txt>
            <CityNm>LONDON</CityNm>
            <ProvinceOrStateNm>0</ProvinceOrStateNm>
            <CountryCd>UK</CountryCd>
            <ForeignPostalCd>WC2H 9EA</ForeignPostalCd>
          </ForeignAddress>
        </ContractorAddress>
        <ServicesDesc>INVESTMENT MGMT FEES</ServicesDesc>
        <CompensationAmt>181815</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>2</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>3203315</AllOtherContributionsAmt>
      <NoncashContributionsAmt>103759</NoncashContributionsAmt>
      <TotalContributionsAmt>3203315</TotalContributionsAmt>
      <TotalProgramServiceRevenueAmt>0</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>6668911</TotalRevenueColumnAmt>
        <ExclusionAmt>6668911</ExclusionAmt>
      </InvestmentIncomeGrp>
      <IncmFromInvestBondProceedsGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </IncmFromInvestBondProceedsGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </RoyaltiesRevenueGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>0</RealAmt>
        <PersonalAmt>0</PersonalAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>15312630</SecuritiesAmt>
        <OtherAmt>1163040</OtherAmt>
      </GrossAmountSalesAssetsGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>15312630</SecuritiesAmt>
        <OtherAmt>1163040</OtherAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>16475670</TotalRevenueColumnAmt>
        <ExclusionAmt>16475670</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <FundraisingGrossIncomeAmt>0</FundraisingGrossIncomeAmt>
      <FundraisingDirectExpensesAmt>0</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <GamingGrossIncomeAmt>0</GamingGrossIncomeAmt>
      <GamingDirectExpensesAmt>0</GamingDirectExpensesAmt>
      <NetIncomeFromGamingGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncomeFromGamingGrp>
      <GrossSalesOfInventoryAmt>0</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>0</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
        <Desc>OTHER REVENUE</Desc>
        <TotalRevenueColumnAmt>130</TotalRevenueColumnAmt>
        <ExclusionAmt>130</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>130</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>26348026</TotalRevenueColumnAmt>
        <ExclusionAmt>23144711</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>0</TotalAmt>
      </ForeignGrantsGrp>
      <BenefitsToMembersGrp>
        <TotalAmt>0</TotalAmt>
      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>0</TotalAmt>
      </CompCurrentOfcrDirectorsGrp>
      <CompDisqualPersonsGrp>
        <TotalAmt>0</TotalAmt>
      </CompDisqualPersonsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>0</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>0</TotalAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>0</TotalAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>0</TotalAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLobbyingGrp>
      <FeesForServicesProfFundraising>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesProfFundraising>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>757157</TotalAmt>
        <ManagementAndGeneralAmt>757157</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>0</TotalAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>0</TotalAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>0</TotalAmt>
      </InformationTechnologyGrp>
      <RoyaltiesGrp>
        <TotalAmt>0</TotalAmt>
      </RoyaltiesGrp>
      <OccupancyGrp>
        <TotalAmt>0</TotalAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>0</TotalAmt>
      </TravelGrp>
      <PymtTravelEntrtnmntPubOfclGrp>
        <TotalAmt>0</TotalAmt>
      </PymtTravelEntrtnmntPubOfclGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>0</TotalAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>0</TotalAmt>
      </InterestGrp>
      <PaymentsToAffiliatesGrp>
        <TotalAmt>0</TotalAmt>
      </PaymentsToAffiliatesGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>0</TotalAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>0</TotalAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>TRANSFER OF NET ASSETS</Desc>
        <TotalAmt>5688858</TotalAmt>
        <ManagementAndGeneralAmt>5688858</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>CUSTODIAN FEES</Desc>
        <TotalAmt>45465</TotalAmt>
        <ManagementAndGeneralAmt>45465</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BANK FEES</Desc>
        <TotalAmt>23792</TotalAmt>
        <ManagementAndGeneralAmt>23792</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>MISC</Desc>
        <TotalAmt>10000</TotalAmt>
        <ManagementAndGeneralAmt>10000</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>6525272</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6525272</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>3418938</BOYAmt>
        <EOYAmt>79071683</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PledgesAndGrantsReceivableGrp>
        <BOYAmt>1261305</BOYAmt>
        <EOYAmt>699975</EOYAmt>
      </PledgesAndGrantsReceivableGrp>
      <AccountsReceivableGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </AccountsReceivableGrp>
      <ReceivablesFromOfficersEtcGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </ReceivablesFromOfficersEtcGrp>
      <RcvblFromDisqualifiedPrsnGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </RcvblFromDisqualifiedPrsnGrp>
      <OthNotesLoansReceivableNetGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </OthNotesLoansReceivableNetGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>889118</BOYAmt>
        <EOYAmt>983955</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>1326210111</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>770998780</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>577510414</BOYAmt>
        <EOYAmt>555211331</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>227716535</BOYAmt>
        <EOYAmt>209785142</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>153220527</BOYAmt>
        <EOYAmt>109346908</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <InvestmentsProgramRelatedGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </InvestmentsProgramRelatedGrp>
      <IntangibleAssetsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </IntangibleAssetsGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>358005732</BOYAmt>
        <EOYAmt>386994090</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>1322022569</BOYAmt>
        <EOYAmt>1342093084</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>17465844</BOYAmt>
        <EOYAmt>17663573</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <GrantsPayableGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </GrantsPayableGrp>
      <DeferredRevenueGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </DeferredRevenueGrp>
      <TaxExemptBondLiabilitiesGrp>
        <BOYAmt>350454985</BOYAmt>
        <EOYAmt>334054210</EOYAmt>
      </TaxExemptBondLiabilitiesGrp>
      <EscrowAccountLiabilityGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </EscrowAccountLiabilityGrp>
      <LoansFromOfficersDirectorsGrp>
        <BOYAmt>521287</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </LoansFromOfficersDirectorsGrp>
      <MortgNotesPyblScrdInvstPropGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </MortgNotesPyblScrdInvstPropGrp>
      <UnsecuredNotesLoansPayableGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </UnsecuredNotesLoansPayableGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>518650860</BOYAmt>
        <EOYAmt>528065017</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>887092976</BOYAmt>
        <EOYAmt>879782800</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
        <BOYAmt>334547871</BOYAmt>
        <EOYAmt>353894442</EOYAmt>
      </UnrestrictedNetAssetsGrp>
      <TemporarilyRstrNetAssetsGrp>
        <BOYAmt>36966026</BOYAmt>
        <EOYAmt>43242610</EOYAmt>
      </TemporarilyRstrNetAssetsGrp>
      <PermanentlyRstrNetAssetsGrp>
        <BOYAmt>63415696</BOYAmt>
        <EOYAmt>65173232</EOYAmt>
      </PermanentlyRstrNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>434929593</BOYAmt>
        <EOYAmt>462310284</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1322022569</BOYAmt>
        <EOYAmt>1342093084</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>19822754</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-4507873</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>12065810</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <ConsolidatedBasisFinclStmtInd>X</ConsolidatedBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="IRS990ScheduleA">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>4626570</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4862987</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5188265</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3576661</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3203315</CurrentTaxYearAmt>
        <TotalAmt>21457798</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TaxRevLeviedOrgnztnlBnft170Grp>
        <TotalAmt>0</TotalAmt>
      </TaxRevLeviedOrgnztnlBnft170Grp>
      <GovtFurnSrvcFcltsVl170Grp>
        <TotalAmt>0</TotalAmt>
      </GovtFurnSrvcFcltsVl170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>4626570</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4862987</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5188265</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3576661</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3203315</CurrentTaxYearAmt>
        <TotalAmt>21457798</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>0</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>21457798</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>3479683</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5008298</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>4110172</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>5182747</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>6668911</CurrentTaxYearAmt>
        <TotalAmt>24449811</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <UnrelatedBusinessNetIncm170Grp>
        <TotalAmt>0</TotalAmt>
      </UnrelatedBusinessNetIncm170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>153169</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>32402</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearAmt>130</CurrentTaxYearAmt>
        <TotalAmt>185701</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>46093310</TotalSupportAmt>
      <PublicSupportCY170Pct>0.46553</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.50818</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="IRS990ScheduleB">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="IRS990ScheduleD">
      <ArtPublicExhibitionAmountsGrp>
        <AssetsIncludedAmt>162084</AssetsIncludedAmt>
      </ArtPublicExhibitionAmountsGrp>
      <HeldWorksArtGrp />
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <CollectionUsedPreservationInd>X</CollectionUsedPreservationInd>
      <SolicitedAssetsSaleInd>false</SolicitedAssetsSaleInd>
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>341617369</BeginningYearBalanceAmt>
        <ContributionsAmt>744382</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>24957232</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>78304622</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>431355</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>288583006</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>305769428</BeginningYearBalanceAmt>
        <ContributionsAmt>10883940</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>32446063</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>7032591</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>449471</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>341617369</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>325051422</BeginningYearBalanceAmt>
        <ContributionsAmt>1108268</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>-4193908</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>15647580</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>548774</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>305769428</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>295405414</BeginningYearBalanceAmt>
        <ContributionsAmt>10196514</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>20788272</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>800000</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>538778</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>325051422</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>284504199</BeginningYearBalanceAmt>
        <ContributionsAmt>688023</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>16904514</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>6048789</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>642533</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>295405414</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <BoardDesignatedBalanceEOYPct>0.75000</BoardDesignatedBalanceEOYPct>
      <PrmnntEndowmentBalanceEOYPct>0.25000</PrmnntEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>false</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
      <LandGrp>
        <InvestmentCostOrOtherBasisAmt>0</InvestmentCostOrOtherBasisAmt>
        <OtherCostOrOtherBasisAmt>15393209</OtherCostOrOtherBasisAmt>
        <BookValueAmt>15393209</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <InvestmentCostOrOtherBasisAmt>0</InvestmentCostOrOtherBasisAmt>
        <OtherCostOrOtherBasisAmt>508597780</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>220994455</DepreciationAmt>
        <BookValueAmt>287603325</BookValueAmt>
      </BuildingsGrp>
      <LeaseholdImprovementsGrp>
        <InvestmentCostOrOtherBasisAmt>0</InvestmentCostOrOtherBasisAmt>
        <OtherCostOrOtherBasisAmt>9489455</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>8571161</DepreciationAmt>
        <BookValueAmt>918294</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <InvestmentCostOrOtherBasisAmt>0</InvestmentCostOrOtherBasisAmt>
        <OtherCostOrOtherBasisAmt>778191076</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>528178134</DepreciationAmt>
        <BookValueAmt>250012942</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <InvestmentCostOrOtherBasisAmt>0</InvestmentCostOrOtherBasisAmt>
        <OtherCostOrOtherBasisAmt>14538591</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>13255030</DepreciationAmt>
        <BookValueAmt>1283561</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>555211331</TotalBookValueLandBuildingsAmt>
      <FinancialDerivativesGrp />
      <CloselyHeldEquityInterestsGrp />
      <OtherSecuritiesGrp>
        <Desc>OTHER SECURITY</Desc>
        <BookValueAmt>109346908</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>109346908</TotalBookValueSecuritiesAmt>
      <OtherAssetsOrgGrp>
        <Desc>INTERCOMPANY RECEIVABLES</Desc>
        <BookValueAmt>337940499</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>BENEFICIAL INTEREST - TRUSTS</Desc>
        <BookValueAmt>32445503</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>ASSETS - SPLIT INTEREST AGREEM</Desc>
        <BookValueAmt>9503980</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>INVESTMENT - JOINT VENTURE</Desc>
        <BookValueAmt>4948253</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>INVESTMENTS - OTHER</Desc>
        <BookValueAmt>1335752</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>OTHER RECEIVABLES - EMPLOYEES</Desc>
        <BookValueAmt>700103</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>INVESTMENT - LAHEY CLINIC INSU</Desc>
        <BookValueAmt>120000</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>386994090</TotalBookValueOtherAssetsAmt>
      <FederalIncomeTaxLiabilityAmt>0</FederalIncomeTaxLiabilityAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>INTERCOMPANY PAYABLES</Desc>
        <Amt>522027809</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>SPLIT INTEREST LIABILITY</Desc>
        <Amt>4978026</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>CONDITIONAL ASSET RETIREMENT O</Desc>
        <Amt>1059182</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>528065017</TotalLiabilityAmt>
      <TotalRevEtcAuditedFinclStmtAmt>25795773</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-4507873</NetUnrealizedGainsInvstAmt>
      <OtherRevenueAmt>7158935</OtherRevenueAmt>
      <RevenueNotReportedAmt>2651062</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>23144711</RevenueSubtotalAmt>
      <OtherRevenuesNotIncludedAmt>3203315</OtherRevenuesNotIncludedAmt>
      <RevenueNotReportedFinclStmtAmt>3203315</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>26348026</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>6525272</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>6525272</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>6525272</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PART XI, LINE 2D - OTHER ADJUSTMENTS</FormAndLineReferenceDesc>
        <ExplanationTxt>UNRESTRICTED CONTRIBUTIONS $2,535,905 ASSETS RELEASED FROM TIME RESTRICTIONS 3,458,141 ASSETS RELEASED FROM RESTRICTIONS 633,144 CHANGE IN VALUE OF SPLIT INTEREST AGREEMENTS 531,745 TOTAL TO SCHEDULE D, PART XI, LINE 2D: $7,158,935</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, LINE 4B - OTHER ADJUSTMENTS</FormAndLineReferenceDesc>
        <ExplanationTxt>CONTRIBUTIONS, GIFTS, AND GRANTS $3,203,315</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PART III, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAINTAINS COLLECTIONS OF ART FOR DISPLAY TO IMPROVE THE PATIENT CARE ENVIRONMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S ENDOWMENT FUNDS SUBSIDIZE THE COSTS OF PROVIDING SUPERIOR HEALTH CARE LEADING TO THE BEST POSSIBLE OUTCOME FOR EVERY PATIENT. THE COSTS ARE FOR PATIENT CARE, PATIENT EDUCATION, CONTINUING EDUCATION OF HEALTH CARE PROVIDERS, RESEARCH, AND CAPITAL EXPENDITURES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="IRS990ScheduleF">
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>North America</RegionTxt>
        <TypeOfActivitiesConductedTxt>Fundraising</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>4159394</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>Central America and the Caribbean</RegionTxt>
        <TypeOfActivitiesConductedTxt>Investments</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>31639068</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalSpentAmt>35798462</SubtotalSpentAmt>
      <TotalSpentAmt>35798462</TotalSpentAmt>
      <TransferToForeignCorpInd>false</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>false</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>false</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>false</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>false</ForeignPartnershipInd>
      <BoycottCountriesInd>false</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE F, PART I, LINE 3:</FormAndLineReferenceDesc>
        <ExplanationTxt>LAHEY CLINIC FOUNDATION, INC. DOES NOT SEPARATELY TRACK EXPENDITURES FOR FUNDRAISING OUTSIDE THE UNITED STATES IN THE REGION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ">
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>true</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>true</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>howard r grant jd md</PersonNm>
        <TitleTxt>TRUSTEE/Officer/PRESIDENT/CEO</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>1047242</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>42000</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>248978</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>30707</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>1368927</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CHRISTINE WINGER MD</PersonNm>
        <TitleTxt>TRUSTEE/PHYSICIAN</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>474212</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>4978</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>37762</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>516952</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>timothy o'connor</PersonNm>
        <TitleTxt>Officer/EVP/CFO &amp; Treasurer</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>579748</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>39578</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>156600</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>28744</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>804670</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>roger l jenkins md</PersonNm>
        <TitleTxt>trustee/physician</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>597445</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>28563</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>35000</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>33129</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>694137</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>richard s d'agostino md</PersonNm>
        <TitleTxt>TRUSTEE/DIVISION CHAIR</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>497676</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>57178</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>35000</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>30673</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>620527</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>andrew g villanueva md</PersonNm>
        <TitleTxt>TRUSTEE/CMO LHMC</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>293930</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>57578</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>28978</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>11873</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>392359</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>betsey crawford md</PersonNm>
        <TitleTxt>trustee/physician</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>184173</CompensationBasedOnRltdOrgsAmt>
        <BonusRelatedOrganizationsAmt>32320</BonusRelatedOrganizationsAmt>
        <OtherCompensationRltdOrgsAmt>27385</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>33261</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>3544</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>280683</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>arthur p mourtzinos md</PersonNm>
        <TitleTxt>trustee/physician</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>460625</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>29594</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>43000</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>30149</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>563368</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>rebecca c yang md</PersonNm>
        <TitleTxt>trustee/physician</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>318565</CompensationBasedOnRltdOrgsAmt>
        <BonusRelatedOrganizationsAmt>21000</BonusRelatedOrganizationsAmt>
        <OtherCompensationRltdOrgsAmt>30731</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>27513</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>25608</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>423417</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>david G spackman JD</PersonNm>
        <TitleTxt>Officer/SVP GOV AFFAIRS &amp; Gen</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>412789</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>17200</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>28978</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>23181</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>482148</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>peter R lloyd</PersonNm>
        <TitleTxt>Officer/VP CORPORATE FINANCE</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>306858</CompensationBasedOnRltdOrgsAmt>
        <BonusRelatedOrganizationsAmt>15000</BonusRelatedOrganizationsAmt>
        <OtherCompensationRltdOrgsAmt>35020</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>35000</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>22951</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>414829</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Alice A Hunter MD</PersonNm>
        <TitleTxt>Trustee/Physician</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>499934</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>54180</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>35000</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>22996</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>612110</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DAVID M BARRETT md</PersonNm>
        <TitleTxt>EMERITUS CHIEF EXEC. OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>2411680</BaseCompensationFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>2411680</TotalCompensationFilingOrgAmt>
        <CompReportPrior990FilingOrgAmt>2411680</CompReportPrior990FilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>William Robertson</PersonNm>
        <TitleTxt>VP &amp; Chief Facilities Officer</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>243178</CompensationBasedOnRltdOrgsAmt>
        <BonusRelatedOrganizationsAmt>65000</BonusRelatedOrganizationsAmt>
        <OtherCompensationRltdOrgsAmt>16482</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>25595</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>28703</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>378958</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 3:</FormAndLineReferenceDesc>
        <ExplanationTxt>INDEPENDENT MEMBERS OF THE LAHEY HEALTH SYSTEM, INC. ("LHS") BOARD OF TRUSTEES COMPRISE THE COMPENSATION COMMITTEE. THE COMMITTEE SETS THE COMPENSATION AND BENEFITS FOR THE CEO. THE COMMITTEE SEEKS THE ADVICE OF EXTERNAL COMPENSATION CONSULTANTS. COMPARABILITY DATA IS PROVIDED, ANALYZED AND DOCUMENTED BY THE EXTERNAL CONSULTANTS. LHS AND ITS RELATED ORGANIZATIONS' SENIOR VP AND CHIEF HUMAN RESOURCES OFFICER PROVIDES THE COMMITTEE WITH ANY REQUESTED INFORMATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 4B:</FormAndLineReferenceDesc>
        <ExplanationTxt>LHS AND ITS RELATED ORGANIZATIONS MAINTAINS A 457F NONQUALIFIED DEFERRED COMPENSATION PLAN AND A SPLIT DOLLAR LIFE INSURANCE PLAN FOR CERTAIN PHYSICIANS, EXECUTIVE MANAGEMENT AND DEFINED MEDICAL STAFF. THE PLANS OFFER PARTICIPATING EMPLOYEES AN ANNUAL DEFERRAL OF COMPENSATION IN ADDITION TO THEIR SALARIES. FOR THE CURRENT PERIOD, THE FOLLOWING INDIVIDUALS PARTICIPATED IN THE 457F NONQUALIFIED DEFERRED COMPENSATION PLAN AND/OR THE SPLIT DOLLAR LIFE INSURANCE PLAN: Howard R. Grant, JD, MD $220,000 Timothy O'Connor $121,600</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 7:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE NON-FIXED PAYMENT BONUSES REPORTED IN SCHEDULE J, PART II, COLUMN (B)(II) ARE DETERMINED BY THE COMPENSATION COMMITTEE, WHICH INCLUDES TRUSTEES. IN A SUBJECTIVE MANNER, THE COMMITTEE TAKES INTO ACCOUNT THE ACHIEVEMENTS OF BOTH THE ORGANIZATION AND THE INDIVIDUAL TO DETERMINE THE APPROPRIATE AMOUNT OF SUCH BONUSES, WHICH INCLUDE, BUT NOT LIMITED TO, THE ORGANIZATION MEETING ITS CORPORATE GOALS; FINANCIAL PERFORMANCE MEASURES AND QUALITY MEASURES (SUCH AS PATIENT SATISFACTION AND QUALITY OF CARE).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II</FormAndLineReferenceDesc>
        <ExplanationTxt>LHS AND ITS RELATED ORGANIZATIONS DO NOT COMPENSATE ANY TRUSTEE OR OFFICER IN THEIR CAPACITY AS TRUSTEE OR OFFICER. ALL COMPENSATION PAID IS FOR WORK PERFORMED IN THEIR CAPACITY OTHER THAN TRUSTEE OR OFFICER, WHICH IS LISTED ON FORM 990, PART VII, DIRECTLY FOLLOWING THE TITLE OF TRUSTEE AND/OR OFFICER. David M. Barrett, M.D. (former Chief Executive Officer of Lahey Clinic Foundation and its subsidiaries): Lahey Clinic Foundation, Inc. (LCF) and David Barrett, M.D. were parties to a Split Dollar Life Insurance Agreement dated December 27, 2000 and a Death Benefit Agreement dated October 22, 2001. Both agreements provided for the payment of benefits to David Barrett based on the terms of said agreements. On August 11, 2016 both agreements were terminated and, as outlined in the agreements, LCF waived its rights to recover the premiums it paid with respect to the agreements in the aggregate of $2,400,000.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleK documentId="IRS990ScheduleK">
      <TaxExemptBondsIssuesGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <IssuerName>
          <BusinessNameLine1Txt>2013 MDFA SERIES E BONDS</BusinessNameLine1Txt>
        </IssuerName>
        <BondIssuerEIN>134994650</BondIssuerEIN>
        <CUSIPNum>NONEAVAIL</CUSIPNum>
        <BondIssuedDt>2013-03-07</BondIssuedDt>
        <IssuePriceAmt>130000000</IssuePriceAmt>
        <PurposeDesc>POWER PLANT &amp; CAPITAL ACQUISITION</PurposeDesc>
        <DefeasedInd>false</DefeasedInd>
        <OnBehalfOfIssuerInd>false</OnBehalfOfIssuerInd>
        <PoolFinancingInd>false</PoolFinancingInd>
      </TaxExemptBondsIssuesGrp>
      <TaxExemptBondsIssuesGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <IssuerName>
          <BusinessNameLine1Txt>2015 MDFA SERIES F BONDS</BusinessNameLine1Txt>
        </IssuerName>
        <BondIssuerEIN>134994650</BondIssuerEIN>
        <CUSIPNum>NONEAVAIL</CUSIPNum>
        <BondIssuedDt>2015-10-21</BondIssuedDt>
        <IssuePriceAmt>235515000</IssuePriceAmt>
        <PurposeDesc>RETIRE BONDS &amp; CAPITAL ACQUISITION</PurposeDesc>
        <DefeasedInd>false</DefeasedInd>
        <OnBehalfOfIssuerInd>false</OnBehalfOfIssuerInd>
        <PoolFinancingInd>false</PoolFinancingInd>
      </TaxExemptBondsIssuesGrp>
      <TaxExemptBondsProceedsGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <RetiredAmt>41220000</RetiredAmt>
        <BondDefeasedAmt>0</BondDefeasedAmt>
        <TotalProceedsAmt>130050301</TotalProceedsAmt>
        <InReserveFundAmt>0</InReserveFundAmt>
        <CapitalizedInterestAmt>0</CapitalizedInterestAmt>
        <RefundingEscrowAmt>0</RefundingEscrowAmt>
        <IssuanceCostsFromProceedsAmt>0</IssuanceCostsFromProceedsAmt>
        <CreditEnhancementAmt>500000</CreditEnhancementAmt>
        <WorkingCapitalExpendituresAmt>0</WorkingCapitalExpendituresAmt>
        <CapitalExpendituresAmt>129550301</CapitalExpendituresAmt>
        <OtherSpentProceedsAmt>0</OtherSpentProceedsAmt>
        <UnspentAmt>0</UnspentAmt>
        <SubstantialCompletionYr>2015</SubstantialCompletionYr>
        <CurrentRefundingInd>false</CurrentRefundingInd>
        <AdvanceRefundingInd>false</AdvanceRefundingInd>
        <FinalAllocationMadeInd>true</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>true</AdequateBooksAndRecMaintInd>
      </TaxExemptBondsProceedsGrp>
      <TaxExemptBondsProceedsGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <RetiredAmt>0</RetiredAmt>
        <BondDefeasedAmt>0</BondDefeasedAmt>
        <TotalProceedsAmt>261009548</TotalProceedsAmt>
        <InReserveFundAmt>0</InReserveFundAmt>
        <CapitalizedInterestAmt>4857465</CapitalizedInterestAmt>
        <RefundingEscrowAmt>160202232</RefundingEscrowAmt>
        <IssuanceCostsFromProceedsAmt>1310144</IssuanceCostsFromProceedsAmt>
        <CreditEnhancementAmt>0</CreditEnhancementAmt>
        <WorkingCapitalExpendituresAmt>0</WorkingCapitalExpendituresAmt>
        <CapitalExpendituresAmt>64587388</CapitalExpendituresAmt>
        <OtherSpentProceedsAmt>0</OtherSpentProceedsAmt>
        <UnspentAmt>30549045</UnspentAmt>
        <SubstantialCompletionYr>2017</SubstantialCompletionYr>
        <CurrentRefundingInd>true</CurrentRefundingInd>
        <AdvanceRefundingInd>true</AdvanceRefundingInd>
        <FinalAllocationMadeInd>true</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>true</AdequateBooksAndRecMaintInd>
      </TaxExemptBondsProceedsGrp>
      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <OwningBondFinancedPropertyInd>false</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>false</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>false</MgmtContractBondFincdPropInd>
        <AnyResearchAgreementsInd>false</AnyResearchAgreementsInd>
        <PrivateBusUseByOthersPct>0</PrivateBusUseByOthersPct>
        <BondIssMeetPrvtSecPymtTestInd>false</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>false</ChangeInUseBondFinancedPropInd>
        <RemedialActionTakenInd>false</RemedialActionTakenInd>
        <ProcsNonqualifiedBondRemdtdInd>false</ProcsNonqualifiedBondRemdtdInd>
      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <OwningBondFinancedPropertyInd>false</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>false</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>false</MgmtContractBondFincdPropInd>
        <AnyResearchAgreementsInd>false</AnyResearchAgreementsInd>
        <PrivateBusUseByOthersPct>0</PrivateBusUseByOthersPct>
        <BondIssMeetPrvtSecPymtTestInd>false</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>false</ChangeInUseBondFinancedPropInd>
        <RemedialActionTakenInd>false</RemedialActionTakenInd>
        <ProcsNonqualifiedBondRemdtdInd>false</ProcsNonqualifiedBondRemdtdInd>
      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <Form8038TFiledInd>false</Form8038TFiledInd>
        <RebateNotDueYetInd>false</RebateNotDueYetInd>
        <ExceptionToRebateInd>false</ExceptionToRebateInd>
        <NoRebateDueInd>true</NoRebateDueInd>
        <VariableRateIssueInd>false</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>false</HedgeIdentifiedInBksAndRecInd>
        <HedgeProviderName>
          <BusinessNameLine1Txt>0</BusinessNameLine1Txt>
        </HedgeProviderName>
        <GrossProceedsInvestedInGICInd>true</GrossProceedsInvestedInGICInd>
        <GICProviderName>
          <BusinessNameLine1Txt>0</BusinessNameLine1Txt>
        </GICProviderName>
      </TaxExemptBondsArbitrageGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <Form8038TFiledInd>false</Form8038TFiledInd>
        <RebateNotDueYetInd>false</RebateNotDueYetInd>
        <ExceptionToRebateInd>false</ExceptionToRebateInd>
        <NoRebateDueInd>true</NoRebateDueInd>
        <VariableRateIssueInd>false</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>false</HedgeIdentifiedInBksAndRecInd>
        <HedgeProviderName>
          <BusinessNameLine1Txt>0</BusinessNameLine1Txt>
        </HedgeProviderName>
        <GrossProceedsInvestedInGICInd>false</GrossProceedsInvestedInGICInd>
        <GICProviderName>
          <BusinessNameLine1Txt>0</BusinessNameLine1Txt>
        </GICProviderName>
      </TaxExemptBondsArbitrageGrp>
      <ProceduresCorrectiveActionGrp>
        <BondReferenceCd>A</BondReferenceCd>
      </ProceduresCorrectiveActionGrp>
      <ProceduresCorrectiveActionGrp>
        <BondReferenceCd>B</BondReferenceCd>
      </ProceduresCorrectiveActionGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE K, PART I, BOND ISSUES:</FormAndLineReferenceDesc>
        <ExplanationTxt>(A) ISSUER NAME: 2013 MDFA SERIES E BONDS (F) DESCRIPTION OF PURPOSE: CONSTRUCTION &amp; EQUIPPING OF A POWER PLANT AND AQUISITION OF CAPITAL ASSETS. (A) ISSUER NAME: 2015 MDFA SERIES F BONDS (F) DESCRIPTION OF PURPOSE: TO REFUND AND ADVANCE REFUND SERIES C AND SERIES D BONDS, RESPECTIVELY. CONSTRUCTION OF A NEW EMERGENCY ROOM, FUTURE STRATEGIC CAPITAL INITIATIVES, AND ROUTINE CAPITAL ASSETS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleK>
    <IRS990ScheduleM documentId="IRS990ScheduleM">
      <WorksOfArtGrp />
      <ArtHistoricalTreasuresGrp />
      <ArtFractionalInterestGrp />
      <BooksAndPublicationsGrp />
      <ClothingAndHouseholdGoodsGrp />
      <CarsAndOtherVehiclesGrp />
      <BoatsAndPlanesGrp />
      <IntellectualPropertyGrp />
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>15</ContributionCnt>
        <NoncashContributionsRptF990Amt>86300</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>HIGH-LOW AVERAGE</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <SecuritiesCloselyHeldStockGrp />
      <SecurPrtnrshpTrustIntrstsGrp />
      <SecuritiesMiscellaneousGrp />
      <QualifiedContribHistStructGrp />
      <QualifiedContribOtherGrp />
      <RealEstateResidentialGrp />
      <RealEstateCommercialGrp />
      <RealEstateOtherGrp />
      <CollectiblesGrp />
      <FoodInventoryGrp />
      <DrugsAndMedicalSuppliesGrp />
      <TaxidermyGrp />
      <HistoricalArtifactsGrp />
      <ScientificSpecimensGrp />
      <ArchaeologicalArtifactsGrp />
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>COMPUTER HARDWARE</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>17459</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COST ESTIMATE</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>true</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART I, LINE I, DESCRIPTION OF ORGANIZATION MISSION:</FormAndLineReferenceDesc>
        <ExplanationTxt>LAHEY CLINIC FOUNDATION, INC. SUPPORTS LAHEY CLINIC HOSPITAL, INC., AND LAHEY CLINIC, INC. LAHEY HOSPITAL &amp; MEDICAL CENTER, IN ASSOCIATION WITH THE TUFTS UNIVERSITY SCHOOL OF MEDICINE, PROVIDES SUPERIOR HEALTH CARE LEADING TO THE BEST POSSIBLE OUTCOMES FOR EVERY PATIENT. AS ONE OF THE WORLD'S PREMIER HEALTH CARE ORGANIZATIONS, LAHEY HOSPITAL &amp; MEDICAL CENTER AIMS TO EXCEED PATIENT'S HIGH EXPECTATIONS FOR SERVICE AND ADVANCE MEDICINE THROUGH RESEARCH AND THE EDUCATION OF TOMORROW'S HEALTH CARE LEADERS. IN ADDITION, LAHEY HOSPITAL &amp; MEDICAL CENTER IS COMMITTED TO IMPROVING THE HEALTH AND QUALITY OF LIFE OF COMMUNITY RESIDENTS BY SUPPORTING LOCAL ORGANIZATIONS ALIGNED WITH THIS MISSION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IV, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>LAHEY HEALTH SYSTEM, INC. IS IN CONTACT WITH FEDERAL AND STATE LEGISLATORS REGARDING HEALTH CARE REFORM ISSUES THAT WOULD POTENTIALLY HAVE AN IMPACT ON THE ORGANIZATION AND ITS RELATED ORGANIZATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IV, LINE 11(F) AND SCHEDULE D, PART X, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S FINANCIAL STATEMENTS DID NOT REPORT A LIABILITY FOR UNCERTAIN TAX POSITIONS UNDER FIN 48.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6, 7A, &amp; 7B:</FormAndLineReferenceDesc>
        <ExplanationTxt>LAHEY HOSPITAL &amp; MEDICAL CENTER ("LHMC") CONSISTS OF THREE NON-PROFIT CORPORATIONS, LAHEY CLINIC FOUNDATION, INC. (EIN# 04-2323457), LAHEY CLINIC HOSPITAL, INC. (EIN# 04-2704686), AND LAHEY CLINIC, INC. (EIN# 04-2704683). ALL THREE CORPORATIONS ARE TAX EXEMPT UNDER INTERNAL REVENUE CODE SECTION 501(C)(3). LAHEY CLINIC FOUNDATION, INC. IS THE SOLE CORPORATE MEMBER OF LAHEY CLINIC HOSPITAL, INC. AND LAHEY CLINIC, INC. LAHEY CLINIC, INC. IS THE SOLE CORPORATE MEMBER OF CONCORD SPECIALISTS, LLC. THE BOARD OF TRUSTEES (GOVERNING BODY) AND CORPORATE OFFICERS FOR LAHEY CLINIC FOUNDATION, INC., LAHEY CLINIC HOSPITAL, INC. AND LAHEY CLINIC, INC. CONSISTS OF THE EXACT SAME MEMBERS. THE MANAGER OF CONCORD SPECIALISTS IS LAHEY HEALTH SHARED SERVICES, INC. AND THE OFFICERS AND AUTHORIZED SIGNATORIES ARE THE PRESIDENT, TREASURER AND CLERK OF LAHEY HEALTH SYSTEM, INC. THE SOLE CORPORATE MEMBER OF THE REPORTING ORGANIZATION IS LAHEY HEALTH SYSTEM, INC. THE REPORTING ORGANIZATIONS MEMBER HAS, WITH RESPECT TO THE REPORTING ORGANIZATION, THE RIGHT TO EXERCISE ALL POWERS CONFERRED ON MEMBERS OF THE NON-PROFIT CORPORATIONS UNDER MASSACHUSETTS GENERAL LAWS CHAPTER 180, INCLUDING, WITHOUT LIMITATION, POWERS WITH RESPECT TO THE FOLLOWING: (A) APPOINTMENT AND REMOVAL OF MEMBERS OF BOARD OF TRUSTEES; (B) AMENDMENT OF THE ARTICLES OF ORGANIZATION; (C) AMENDENT OF THE BY-LAWS; (D) THE SALE, LEASE, EXCHANGE OR OTHER DISPOSITION OF ALL OR SUBSTQANTIALLY ALL OF THE CORPORATIONS ASSETS; AND (E) THE MERGER OR CONSOLIDATION WITH ANOTHER CORPORATION. THE ARTICLES OF INCORPORATION OF THE REPORTING ORGANIZATION WERE AMENDED JULY 1, 2014 AND THE BY-LAWS WERE AMENDED ON JULY 1, 2014 TO REFLECT THE AFOREMENTIONED CHANGES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11A:</FormAndLineReferenceDesc>
        <ExplanationTxt>MANAGEMENT PREPARED THE IRS FORM 990 ALONG WITH INDEPENDENT TAX CONSULTANTS WHO SIGN THE RETURN AS A PAID PREPARER. PRIOR TO THE FILING DATE, A DRAFT OF THE IRS FORM 990 was PROVIDED TO THE ENTIRE BOARD OF TRUSTEES VIA A SECURED WEBSITE. IN ADDITION, THE FINAL FORM 990 WAS PROVIDED TO THE ENTIRE BOARD OF TRUSTEES VIA THE SAME SECURED WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C:</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL OFFICERS, TRUSTEES, KEY EMPLOYEES, PHYSICIANS AND MANAGEMENT EMPLOYEES AT ALL LEVELS ARE REQUIRED TO COMPLETE AN ANNUAL CONFLICT OF INTEREST DISCLOSURE FORM. THE LHS CORPORATE COMPLIANCE DEPARTMENT MONITORS AND REVIEWS EACH DISCLOSURE FOR COMPLIANCE WITH THE CONFLICT OF INTEREST POLICY. THE CORPORATE COMPLIANCE DEPARTMENT MONITORS CONFLICTS OF INTEREST THROUGH DISCLOSURE SOFTWARE, TRAINING, AND INDIVIDUAL REVIEWS WITH PHYSICIANS, KEY EMPLOYEES, AND MANAGERS. DEPENDING ON THE CONFLICT OF INTEREST: A PERSON COULD BE ASKED TO NOT PARTICIPATE IN DECISIONS MADE ON BEHALF OF THE LAHEY HEALTH SYSTEM, INC. AND AFFILIATES; A PERSON MAY BE TOLD THEY CANNOT BE A PRINCIPAL INVESTIGATOR ON A RESEARCH STUDY; A PERSON MAY BE TOLD THAT THEY CANNOT PERFORM THE TASK THAT CREATES THE CONFLICT; A PERSON COULD BE ASKED TO REMOVE THEMSELVES FROM A COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 14:</FormAndLineReferenceDesc>
        <ExplanationTxt>LAHEY HEALTH SYSTEM, INC. AND AFFILIATES HAS A WRITTEN DOCUMENT RETENTION AND DESTRUCTION POLICY KNOWN AS THE "RETENTION OF ADMINISTRATIVE AND CLINICAL DOCUMENTS." THE REVISED "RETENTION OF ADMINISTRATIVE AND CLINICAL DOCUMENTS" POLICY WAS APPROVED BY THE MEDICAL PRACTICE AND UTILIZATION COMMITTEE ON JULY 26, 2012.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A AND 15B:</FormAndLineReferenceDesc>
        <ExplanationTxt>INDEPENDENT MEMBERS OF THE BOARD OF TRUSTEES COMPRISE THE COMPENSATION COMMITTEE. THE COMMITTEE SETS THE COMPENSATION AND BENEFITS FOR THE CEO AND ALSO REVIEWS AND APPROVES RECOMMENDATIONS FOR THE COMPENSATION AND BENEFITS FOR DISQUALIFIED INDIVIDUALS AND OTHERS. THE COMMITTEE SEEKS THE ADVICE OF EXTERNAL COMPENSATION CONSULTANTS. COMPARABILITY DATA IS PROVIDED, ANALYZED, AND DOCUMENTED BY THE EXTERNAL CONSULTANTS. THE LHS SENIOR VP AND CHIEF HUMAN RESOURCES OFFICER PROVIDES THE COMMITTEE WITH ANY REQUESTED INFORMATION. THE COMMITTEE MET SEVERAL TIMES THIS YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 16B:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION NEGOTIATES ARRANGEMENTS TO INCLUDE TERMS AND SAFEGUARDS TO ENSURE THAT THE ORGANIZATION'S EXEMPT STATUS IS PROTECTED. FROM A LEGAL PERSPECTIVE, IN-HOUSE LEGAL COUNSEL, WITH THE INPUT OF EXTERNAL LEGAL COUNSEL REVIEW ALL PROPOSED JOINT VENTURE AND PARTNERSHIP AGREEMENTS. FROM A FINANCIAL PERSPECTIVE, LHS'S FINANCE MANAGEMENT TEAM REVIEWS ALL PROPOSED JOINT VENTURE AND PARTNERSHIP AGREEMENTS. BOTH REVIEWS TAKE PLACE BEFORE LAHEY HEALTH SYSTEM, INC. AND AFFILIATES ENTERS INTO ANY SUCH AGREEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S GOVERNING DOCUMENTS AND AUDITED FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST. THE ORGANIZATION'S CONFLICT OF INTEREST POLICY AND OTHER COMPLIANCE POLICIES ARE MADE AVAILABLE TO THE PUBLIC VIA THE ORGANIZATION'S WEBSITE. IN ADDITION, THE ORGANIZATION PRESENTS FINANCIAL INFORMATION TO THE PUBLIC AS AN ATTACHMENT TO ITS MASSACHUSETTS OFFICE OF THE ATTORNEY GENERAL FORM PC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VII, SECTION A:</FormAndLineReferenceDesc>
        <ExplanationTxt>LAHEY HEALTH SYSTEM, INC. AND ITS RELATED ORGANIZATIONS DO NOT COMPENSATE ANY TRUSTEE OR OFFICER IN THEIR CAPACITY AS A TRUSTEE AND/OR OFFICER. ALL COMPENSATION PAID IS FOR WORK PERFORMED IN THE EMPLOYEE'S JOB TITLE, WHICH IS LISTED ON FORM 990, PART VII DIRECTLY FOLLOWING THE TITLE OF TRUSTEE AND/OR OFFICER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VII, PART IX AND SCHEDULE J</FormAndLineReferenceDesc>
        <ExplanationTxt>BENEFIT AND PENSION EXPENSES FOR TRUSTEES, OFFICERS, AND KEY EMPLOYEES OF LAHEY CLINIC FOUNDATION, INC. ARE PAID BY LAHEY CLINIC FOUNDATION, INC. AS THE PARENT COMPANY OF LAHEY CLINIC HOSPITAL, INC. AND LAHEY CLINIC, INC. LAHEY CLINIC FOUNDATION, INC. ALLOCATES ALL OF THE AFOREMENTIONED EXPENSES TO RELATED ORGANIZATIONS. THE RELATED ORGANIZATIONS THEN REIMBURSE LAHEY CLINIC FOUNDATION, INC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VII, SECTION B, LINE 1 &amp; 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>LAHEY HEALTH SHARED SERVICES, INC. ("LHSS") COMPENSATES (PROCESS PAYMENT) ALL INDEPENDENT CONTRACTORS (VENDORS) ON BEHALF OF THE LAHEY HEALTH SYSTEM, INC. AND ITS FAMILY OF ORGANIZATIONS. UNDER ITS TAX ID NUMBER, LHSS ISSUES FORM 1099 TO THE INDEPENDENT CONTRACTORS. IN ADDITION, IT SUBMITS THE SAME INFORMATION TO THE INTERNAL REVENUE SERVICE. THE LAHEY HEALTH SYSTEM, INC. AND ITS FAMILY OF ORGANIZATIONS REIMBURSES LHSS FOR ALL VENDOR PAYMENTS MADE EITHER DIRECTLY OR INDIRECTLY ON THEIR BEHALF.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9, OTHER CHANGES IN NET ASSETS:</FormAndLineReferenceDesc>
        <ExplanationTxt>UNRESTRICTED CONTRIBUTIONS $2,535,905 ASSETS RELEASED FROM TIME RESTRICTIONS 531,745 ASSETS RELEASED FROM RESTRICTIONS 3,458,141 GRANTS AND CONTRIBUTIONS (3,203,315) CHANGE IN VALUE OF SPLIT INTEREST AGREEMENTS 633,144 CHANGES IN TEMPORARY AND PERMANENT NET ASSETS 8,110,190 TOTAL FORM 990, PART XI, LINE 9 $12,065,810</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="IRS990ScheduleR">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>LAHEY HEALTH SYSTEM INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>611665701</EIN>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12C</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>LAHEY CLINIC HOSPITAL INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>042704686</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LCF</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>LAHEY CLINIC INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>042704683</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LCF</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>LAHEY HEALTH SHARED SERVICES INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>043178972</EIN>
        <PrimaryActivitiesTxt>ADMIN SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>LAHEY PHYSICIAN COMMUNITY ORG I INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>472248298</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12A</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>WINCHESTER HEALTHCARE MANAGEMENT INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>222701817</EIN>
        <PrimaryActivitiesTxt>MANAGEMENT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12A</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>WINCHESTER HOSPITAL FOUNDATION INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>043399570</EIN>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12A</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>WHM</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>WINCHESTER HOSPITAL</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>042104434</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>WHM</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>WINCHESTER COMMUNITY ACCOUNTABLE CARE OR</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>223137856</EIN>
        <PrimaryActivitiesTxt>ACO</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12A</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>WHM</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>VISITING NURSE ASSOC OF MIDDLESEX-East</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>607 NORTH AVENUE</AddressLine1Txt>
          <CityNm>WAKEFIELD</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01880</ZIPCd>
        </USAddress>
        <EIN>046151873</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>COMMUNITY CARE INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>607 NORTH AVENUE</AddressLine1Txt>
          <CityNm>WAKEFIELD</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01880</ZIPCd>
        </USAddress>
        <EIN>900396973</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NORTHEAST HOSPITAL CORPORATION</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>85 HERRICK STREET</AddressLine1Txt>
          <CityNm>BEVERLY</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01915</ZIPCd>
        </USAddress>
        <EIN>042121317</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NORTHEAST MEDICAL PRACTICE</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>85 HERRICK STREET</AddressLine1Txt>
          <CityNm>BEVERLY</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01915</ZIPCd>
        </USAddress>
        <EIN>043201853</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NHC</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NORTHEAST BEHAVIORAL HEALTH CORPORATION</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>199 ROSEWOOD DRIVE SUITE 250</AddressLine1Txt>
          <CityNm>DANVERS</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01923</ZIPCd>
        </USAddress>
        <EIN>042777145</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>7</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>HES HOUSING SERVICES INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>199 ROSEWOOD DRIVE SUITE 250</AddressLine1Txt>
          <CityNm>DANVERS</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01923</ZIPCd>
        </USAddress>
        <EIN>223232914</EIN>
        <PrimaryActivitiesTxt>HUD HOUSING</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NBH</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>CAB HEALTH &amp; RECOVERY SERVICES INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>199 ROSEWOOD DRIVE SUITE 250</AddressLine1Txt>
          <CityNm>DANVERS</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01923</ZIPCd>
        </USAddress>
        <EIN>042400270</EIN>
        <PrimaryActivitiesTxt>SUBSTANCE ABU</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NBH</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NORTHEAST SENIOR HEALTH CORPORATION</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>85 HERRICK STREET</AddressLine1Txt>
          <CityNm>BEVERLY</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01915</ZIPCd>
        </USAddress>
        <EIN>042731137</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NORTHEAST PROF REGISTRY OF NURSEs</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>800 CUMMINGS CENTER</AddressLine1Txt>
          <CityNm>BEVERLY</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01915</ZIPCd>
        </USAddress>
        <EIN>201287349</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NSH</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>SEACOAST NURSING &amp; REHABilitation CENTER</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>300 WASHINGTON STREET</AddressLine1Txt>
          <CityNm>GLOUCESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01930</ZIPCd>
        </USAddress>
        <EIN>041305001</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>ADDISON GILBERT SOCIETY INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>464371382</EIN>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>7</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NORTHEAST HEALTH SYSTEM INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>85 HERRICK STREET</AddressLine1Txt>
          <CityNm>BEVERLY</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01915</ZIPCd>
        </USAddress>
        <EIN>043240453</EIN>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12C</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>LAHEY CLINIC INSURANCE CO LTD</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <ForeignAddress>
          <AddressLine1Txt>PO BOX HM 2450</AddressLine1Txt>
          <ProvinceOrStateNm>HAMILTON</ProvinceOrStateNm>
          <CountryCd>BD</CountryCd>
        </ForeignAddress>
        <PrimaryActivitiesTxt>Insurance</PrimaryActivitiesTxt>
        <LegalDomicileForeignCountryCd>BD</LegalDomicileForeignCountryCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>FOREIGN CORP</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>WINCHESTER HEALTHCARE ENTERPRISES INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>042932059</EIN>
        <PrimaryActivitiesTxt>Healthcare</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>WHM</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C CORP</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>WINCHESTER PHYSICIAN ASSOCIATES INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>043262963</EIN>
        <PrimaryActivitiesTxt>PHYSICIAN SER</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>WHM</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C CORP</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>NORTHEAST PROPRIETARY CORPORATION</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>85 HERRICK STREET</AddressLine1Txt>
          <CityNm>BEVERLY</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01915</ZIPCd>
        </USAddress>
        <EIN>042855191</EIN>
        <PrimaryActivitiesTxt>MEDICAL SERVI</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C CORP</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>Perpetual Trusts (8)</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>SEE PART VII</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>TRUST</EntityTypeTxt>
        <ShareOfTotalIncomeAmt>1033541</ShareOfTotalIncomeAmt>
        <ShareOfEOYAssetsAmt>21148142</ShareOfEOYAssetsAmt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>REMAINDER TRUSTS (18)</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>SEE PART VII</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>TRUST</EntityTypeTxt>
        <ShareOfTotalIncomeAmt>94753</ShareOfTotalIncomeAmt>
        <ShareOfEOYAssetsAmt>6990842</ShareOfEOYAssetsAmt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>POOLED INCOME FUNDS (3)</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>SEE PART VII</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>TRUST</EntityTypeTxt>
        <ShareOfTotalIncomeAmt>106635</ShareOfTotalIncomeAmt>
        <ShareOfEOYAssetsAmt>825972</ShareOfEOYAssetsAmt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>true</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>true</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>true</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>true</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>true</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>true</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>true</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>true</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>true</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>true</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>true</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>LAHEY CLINIC INC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>N</TransactionTypeTxt>
        <InvolvedAmt>275430553</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>FMV</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>LAHEY CLINIC HOSPITAL INC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>N</TransactionTypeTxt>
        <InvolvedAmt>-522004287</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>FMV</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, SCHEDULE R, PART IV:</FormAndLineReferenceDesc>
        <ExplanationTxt>NORTHEAST HOSPITAL CORPORATION, LAHEY CLINIC FOUNDATION, INC., AND WINCHESTER HOSPITAL, RESPECTIVELY, HAVE FOUR, THREE AND ONE PERPETUAL TRUSTS. THE PERPETUAL TRUSTS ARE DOMICILED IN MASSACHUSETTS, PENNSYLVANIA, AND FLORIDA. LAHEY CLINIC FOUNDATION, INC. HAS EIGHTEEN REMAINDER TRUSTS. THE REMAINDER TRUSTS ARE DOMICILED IN MASSACHUSETTS, NEW HAMPSHIRE, DELAWARE, WISCONSIN, AND NEW YORK. LAHEY CLINIC FOUNDATION, INC. HAS THREE POOLED INCOME FUNDS, DOMICILED IN MASSACHUSETTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, SCHEDULE R, PART V:</FormAndLineReferenceDesc>
        <ExplanationTxt>The Lahey Health Shared Services, Inc. Philanthropy Department conducts fundraising and solicitation efforts on behalf of all entities within the Lahey Health System, Inc. family of organizations. Lahey Health System, Inc. and its related organizations, Lahey Clinic Foundation, Inc. and its related organizations, Winchester Healthcare Management, Inc. and its related organizations, Northeast Behavioral Health Corporation and its related organizations, Northeast Senior Health Corporation and its related organization, Northeast Health System, Inc. and its related organization, and Northeast Hospital Corporation and its related organization, provide various corporate and OTHER SERVICES TO EACH OTHER. THE ORGANIZATIONS REIMBURSE EACH OTHER FOR EXPENSES INCURRED SUCH AS EMPLOYEE SALARIES AND BENEFITS, MATERIALS, SUPPLIES, UTILITIES, ETC. CASH IS TRANSFERRED BETWEEN THE ORGANIZATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
</Return>