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        <ContributorUSAddress>
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          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
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      <EquipmentGrp />
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          <BusinessNameLine1Txt>ICAHN SCHOOL OF MEDICINE AT MT SINAI</BusinessNameLine1Txt>
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          <AddressLine1Txt>1 Gustave L Levy Place</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10029</ZIPCd>
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        <PurposeOfGrantTxt>GENERAL SUPPORT</PurposeOfGrantTxt>
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        <FormAndLineReferenceDesc>PART I, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL MAJOR EXPENDITURES ARE APPROVED BY THE BOARD, AND DETAILED FINANCIALS ARE REVIEWED AT A MINIMUM OF TWICE YEARLY DURING BOARD MEETINGS.</ExplanationTxt>
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        <FormAndLineReferenceDesc>PART VII, SECTION A &amp; SCHEDULE J</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION FOOTNOTES OFFICERS OF THE BOARDS OF TRUSTEES HOURS REFLECT SERVICE TO ALL RELATED ORGANIZATIONS OF MOUNT SINAI HEALTH SYSTEM, INC. (1)COMPENSATION AND BENEFITS ARE FUNDED FROM ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI. OTHER REPORTABLE COMPENSATION FOR OFFICERS, KEY EMPLOYEES, AND HIGHEST COMPENSATED EMPLOYEES AS IDENTIFIED IN THE FORM 990, PART VII, AND LISTED ON SCHEDULE J MAY INCLUDE VARIOUS TYPES OF SUPPLEMENTAL WAGES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE J, PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MOUNT SINAI HOSPITAL, A RELATED ORGANIZATION, ESTABLISHES EXECUTIVE COMENSATION BY UTILIZING THE FOLLOWING METHODS: COMPENSATION COMMITTEE, INDEPENDENT COMPENSATION CONSULTANT, COMPENSATION SURVEYS/STUDIES, AND APPROVAL BY THE BOARD/COMPENSATION COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE J, PART I, LINES 6A &amp; 6B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MOUNT SINAI HOSPITAL, A RELATED ORGANIZATION, ANSWERED YES TO QUESTIONS 6A AND 6B IN SCHEDULE J AS THE INSTITUTION UTILIZES AN INCENTIVE BASED BONUS PROGRAM FOR CERTAIN EMPLOYEES, INCLUDING SEVERAL OF THOSE EMPLOYEES LISTED IN SCHEDULE J. NET EARNINGS IS ONE OF SEVERAL METRICS UTILIZED BY THE INSTITUTION IN THE ANNUAL BONUS CALCULATION. OTHER METRICS UTILIZED IN THE INCENTIVE COMPENSATION MODEL INCLUDE THE ORGANIZATION'S PERFORMANCE ON THE JCAHO HOSPITAL CORE MEASURES, PATIENT SATISFACTION SCORES, AND OTHER ORGANIZATIONAL GOALS SUCH AS LENGTH OF STAY INITIATIVES. INDIVIDUALS THAT HAVE RESPONSIBILITIES IN RELATED ORGANIZATIONS TO THE HOSPITAL MAY HAVE INCENTIVES BASED ON THE PERFORMANCE OF THESE ORGANIZATIONS AS WELL AS THAT OF THE HOSPITAL.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART 1, LINE 5</FormAndLineReferenceDesc>
        <ExplanationTxt>NUMBER OF EMPLOYEES EMPLOYEES OF THE MOUNT SINAI HOSPITAL AND THE ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI, INCLUDING EMPLOYEES PROVIDING SERVICES AT ELMHURST HOSPITAL CENTER AND QUEENS HOSPITAL CENTER, UTILIZE A COMMON PAYMASTER UNDER THE HOSPITAL'S TAX IDENTIFICATION NUMBER. THE TOTAL NUMBER OF EMPLOYEES REPORTED UNDER THE MOUNT SINAI HOSPITAL'S TAX IDENTIFICATION NUMBER WITH THE COMMON PAYMASTER SYSTEM IS 38,041 INDIVIDUALS. IN ADDITION, THE MOUNT SINAI HOSPITAL OPERATES PAYROLL FOR SOME RELATED ENTITIES, INCLUDING THE CHILDREN'S CENTER, AS WELL AS SHARED EMPLOYEE EXPENSE. ALL SALARIES ARE ALLOCATED BACK TO THE SEPARATE ENTITIES AND REPORTED AS IF PAID DIRECTLY BY THEM. THE NUMBER OF DIRECT CHILDREN'S CENTER EMPLOYEES IS 1.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION A, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>VOTING MEMBERS AND FAMILY/BUSINESS RELATIONSHIPS *TRUSTEES MARC ROWAN AND BARRY COHEN HAVE A BUSINESS RELATIONSHIP. *TRUSTEES MARC AND CAROLYN ROWAN HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES FREDERIQUE AND RAYMOND SVIDER HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES JENNIFER DEPPE PARKER AND STAN PARKER HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES MARK AND JILL RACHESKY HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES IRA AND JODY SCHWARTZ HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES JONATHAN AND ELIZABETH LEWINSOHN HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES BARRY AND JOYCE COHEN HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES STUART AND PAMELA ROTHENBERG HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES PURNIMA PURI AND RICHARD BARRERA HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES REBECCA AND DAVID ZWILLINGER HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES SARA AND NATHANIEL ZILKHA HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEES WESLEY AND EVAN LEPATNER HAVE A FAMILY RELATIONSHIP. TOGETHER, THEY HOLD ONE VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *TRUSTEE NANCY CHEMTOB HOLDS VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *OFFICER MICHAEL GROSS HOLDS VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. *OFFICER VICKI PANZIER GROSS HOLDS VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD. FOUNDATION BOARD. *TRUSTEES GREGG AND LISA RECHLER HAVE A FAMILY RELATIONSHIPAND RESIGNED IN OCTOBER 2022. THEY NO LONGER HOLD A VOTE ON THE CHILDREN'S CENTER FOUNDATION BOARD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>AS DESCRIBED IN THE BY-LAWS, ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI IS THE SOLE MEMBER OF THE MOUNT SINAI CHILDREN'S CENTER FOUNDATION, INC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION A, QUESTIONS 7A &amp; 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>AS DESCRIBED IN THE BY-LAWS, ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI ELECTS THE BOARD OF DIRECTORS, THUS, CONTROLLING THE CHILDREN'S CENTER FOUNDATION AND PASSING INDIRECT CONTROL OVER THE CHILDREN'S CENTER FOUNDATION TO THE SCHOOL'S RELATED ORGANIZATIONS IN ACCORDANCE WITH SECTION 318 OF THE INTERNAL REVENUE CODE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 PROVIDED TO GOVERNING BODY THE FINANCE DEPARTMENT GATHERED THE RELEVANT INFORMATION AND PREPARED THE TAX RETURNS. * THE TAX DEPARTMENT OF OUR OUTSIDE AUDITORS, ERNST &amp; YOUNG (EY), PARTICIPATED IN THE PREPARATION OF, AND REVIEWED, ALL TAX RETURNS. * A QUESTIONNAIRE WAS CIRCULATED TO ALL TRUSTEES, DIRECTORS, OFFICERS AND KEY EMPLOYEES IN ORDER TO ELICIT THE INFORMATION REQUIRED TO BE REPORTED ON THE TAX RETURNS. * THE TRUSTEE CONFLICTS OF INTEREST REVIEW COMMITTEE REVIEWED THE RESPONSES PROVIDED BY TRUSTEES AND CERTAIN OFFICERS IN THE QUESTIONNAIRES AND ASSESSED ADDITIONAL PERTINENT FACTS GATHERED BY THE INSTITUTION IN ORDER TO EVALUATE THE APPLICABILITY OF IRS REPORTING REQUIREMENTS. THE REVIEW COMMITTEE THEN DETERMINED THE APPROPRIATE TRUSTEE (AND CERTAIN OFFICER) DISCLOSURES THAT SHOULD BE MADE ON FORM 990 BASED ON THE RECOMMENDATIONS OF THE FINANCE DEPARTMENT, THE GENERAL COUNSEL'S OFFICE AND THE AUDIT AND COMPLIANCE DEPARTMENT. THESE RECOMMENDATIONS WERE REVIEWED AND APPROVED BY EY. THE SAME PROCESS WAS CONDUCTED BY THE FINANCE DEPARTMENT, THE GENERAL COUNSEL'S OFFICE, THE AUDIT AND COMPLIANCE DEPARTMENT AND EY WITH RESPECT TO THE QUESTIONNAIRES SUBMITTED BY OTHER OFFICERS AND KEY EMPLOYEES. * THE AUDIT AND COMPLIANCE COMMITTEE OF THE BOARD OF TRUSTEES CONDUCTED A REVIEW OF THE TAX RETURN, WITH THE PARTICIPATION OF EY, THE FINANCE DEPARTMENT, THE GENERAL COUNSEL'S OFFICE, AND THE AUDIT AND COMPLIANCE DEPARTMENT. THE AUDIT COMMITTEE APPROVED THE TAX RETURNS AS PRESENTED. * THE AUDIT COMMITTEE'S REPORT OF ITS REVIEW OF THE TAX RETURNS AND ITS RECOMMENDATION TO FILE THE RETURNS WERE PRESENTED TO, AND ACCEPTED BY, THE EXECUTIVE COMMITTEE OF THE BOARD OF TRUSTEES (THE EXECUTIVE COMMITTEE). * IN ADDITION TO AUTHORIZING THE FILING OF THE TAX RETURNS, THE EXECUTIVE COMMITTEE DIRECTED THAT THE RETURNS, WHICH WILL BE FILED ON OR BEFORE NOVEMBER 15, 2023, BE PROVIDED TO ALL TRUSTEES VIA THE TRUSTEES' CONFIDENTIAL WEBSITE, AND THOSE RETURNS WERE SO PROVIDED BEFORE BEING FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>MONITORING &amp; ENFORCING COMPLIANCE WITH THE POLICY COMPLIANCE WITH THE ORGANIZATION'S BUSINESS CONFLICTS OF INTEREST POLICY (THE POLICY) IS REQUIRED OF TRUSTEES, EMPLOYEES, MEDICAL STAFF AND NON-EMPLOYEE MEMBERS OF INSTITUTIONAL COMMITTEES AND INCLUDES AN ONGOING DUTY TO DISCLOSE POTENTIAL CONFLICTS. COMPLIANCE WITH THE POLICY IS MONITORED AND ENFORCED REGULARLY AND CONSISTENTLY. ALL DISCLOSURES WITH THE POTENTIAL FOR CONFLICT ARE REVIEWED BY AN APPROPRIATE COMMITTEE WHERE THEY ARE CAREFULLY EVALUATED. WHEN APPROPRIATE, A PLAN, WHICH MAY INVOLVE MEASURES INCLUDING, BUT NOT LIMITED TO, RECUSAL FROM PARTICIPATING IN AFFECTED TRANSACTIONS, IS DEVELOPED TO MANAGE THE POTENTIAL CONFLICT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION B, QUESTIONS 12-14</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARDS OF THE MOUNT SINAI MEDICAL CENTER, ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI AND THE MOUNT SINAI HOSPITAL HAVE ADOPTED ALL POLICIES REFERRED TO IN FORM 990, PART VI, SECTION B QUESTIONS 12 TO 14, WHICH COVER ALL OWNED/CONTROLLED ENTITIES, INCLUDING THE CHILDREN'S CENTER FOUNDATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AVAILABLE TO THE PUBLIC THE ORGANIZATION MAKES ITS BUSINESS CONFLICTS OF INTEREST POLICY AVAILABLE ON ITS WEBSITE (WWW.MOUNTSINAI.ORG) AND MAKES ITS GOVERNING DOCUMENTS AND FINANCIAL STATEMENTS AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
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          <AddressLine1Txt>1425 MADISON AVENUE</AddressLine1Txt>
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          <BusinessNameLine1Txt>SEE PART VII</BusinessNameLine1Txt>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>MSMC RESIDENTIAL REALTY MANAGER INC</BusinessNameLine1Txt>
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          <AddressLine1Txt>ONE GUSTAVE L LEVY PLACE</AddressLine1Txt>
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          <BusinessNameLine1Txt>VALENTIN FUSTER MT SINAI FND SCI HLTH</BusinessNameLine1Txt>
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          <BusinessNameLine1Txt>MOUNT SINAI HEALTH SYSTEM INC</BusinessNameLine1Txt>
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          <AddressLine1Txt>ONE GUSTAVE L LEVY PLACE</AddressLine1Txt>
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          <AddressLine1Txt>ONE GUSTAVE L LEVY PLACE</AddressLine1Txt>
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        <DisregardedEntityName>
          <BusinessNameLine1Txt>Mount Sinai Ambulatory Ventures Inc</BusinessNameLine1Txt>
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          <BusinessNameLine1Txt>BIMC HOLDCO</BusinessNameLine1Txt>
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        <ControlledOrganizationInd>true</ControlledOrganizationInd>
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        <DisregardedEntityName>
          <BusinessNameLine1Txt>THE LONG ISLAND COLLEGE HOSPITAL</BusinessNameLine1Txt>
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          <AddressLine1Txt>150 EAST 42ND STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
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          <BusinessNameLine1Txt>CHP</BusinessNameLine1Txt>
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        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>ST LUKE'S-ROOSEVELT HOSPITAL CENTER</BusinessNameLine1Txt>
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          <AddressLine1Txt>1111 AMSTERDAM AVENUE</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
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        </USAddress>
        <EIN>132997301</EIN>
        <PrimaryActivitiesTxt>HOSPITAL</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MSHG</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>AUGUSTUS &amp; JAMES CORPORATION</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>150 EAST 42ND STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10017</ZIPCd>
        </USAddress>
        <EIN>133392851</EIN>
        <PrimaryActivitiesTxt>REAL ESTATE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12 TYPE I</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>SLR</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>ST LUKE'S-ROOSEVELT INSTITUTE FOR HEALTH</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>1111 AMSTERDAM AVENUE</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10025</ZIPCd>
        </USAddress>
        <EIN>132914343</EIN>
        <PrimaryActivitiesTxt>RESEARCH</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>4</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>SLR</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NEW YORK EYE AND EAR INFIRMARY</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>310 EAST 14TH STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10003</ZIPCd>
        </USAddress>
        <EIN>135562304</EIN>
        <PrimaryActivitiesTxt>HOSPITAL</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MSHG</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NEW YORK EYE &amp; EAR INFIRMARY FNDN</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>310 EAST 14TH STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10003</ZIPCd>
        </USAddress>
        <EIN>134012469</EIN>
        <PrimaryActivitiesTxt>PRIVATE FDN</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>PF</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NYEE</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NYEEI HOUSING COMPANY INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>317-327 EAST 13TH STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10003</ZIPCd>
        </USAddress>
        <EIN>311696826</EIN>
        <PrimaryActivitiesTxt>REAL ESTATE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(2)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>N/A</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NYEE</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>BETH ISRAEL MEDICAL CENTER FDN INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>150 EAST 42ND STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10017</ZIPCd>
        </USAddress>
        <EIN>300571387</EIN>
        <PrimaryActivitiesTxt>FUNDRAISING</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>7</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>BIMC</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>ST LUKE'S-ROOSEVELT HOSPITAL CENTER FDN</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>150 EAST 42ND STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10017</ZIPCd>
        </USAddress>
        <EIN>300571390</EIN>
        <PrimaryActivitiesTxt>FUNDRAISING</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>7</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>SLR</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>BETH ISRAEL MEDICAL CENTER</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>FIRST AVENUE AT 16TH STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10003</ZIPCd>
        </USAddress>
        <EIN>135564934</EIN>
        <PrimaryActivitiesTxt>Hospital</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MSHG</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>MOUNT SINAI HEALTH PARTNERS PC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>150 EAST 42ND STREET 5TH FLR</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10017</ZIPCd>
        </USAddress>
        <EIN>812057452</EIN>
        <PrimaryActivitiesTxt>Healthcare</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MSH</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>SOUTH NASSAU COMMUNITIES HOSPITAL INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>ONE HEALTHY WAY</AddressLine1Txt>
          <CityNm>OCEANSIDE</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11572</ZIPCd>
        </USAddress>
        <EIN>111352310</EIN>
        <PrimaryActivitiesTxt>HOSPITAL</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MSHG</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>MOUNT SINAI SELF INSURANCE TRUST</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>150 EAST 42ND STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10017</ZIPCd>
        </USAddress>
        <EIN>823994798</EIN>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12 TYPE II</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MSHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>East 98th Street Community Services Inc</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>ONE GUSTAVE L LEVY PLACE</AddressLine1Txt>
          <CityNm>New York</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10029</ZIPCd>
        </USAddress>
        <EIN>822536805</EIN>
        <PrimaryActivitiesTxt>AMB SRGY CNTR</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>ISMMS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>BACHMANN-STRAUSS DYSTONIA FOUNDATION INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>150 East 42nd Street</AddressLine1Txt>
          <CityNm>New York</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10017</ZIPCd>
        </USAddress>
        <EIN>133804248</EIN>
        <PrimaryActivitiesTxt>FUNDRAISING</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>7</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MSHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>CARE CONTINUUM VENTURES INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>ONE GUSTAVE L LEVY PLACE</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10029</ZIPCd>
        </USAddress>
        <EIN>863155355</EIN>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12 TYPE II</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MSHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>MSS HEALTH PC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>150 EAST 42ND STREET 5E-32</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10017</ZIPCd>
        </USAddress>
        <EIN>862530666</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NJ</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MSH</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>MANHATTAN MANAGEMENT SERVICES</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>1780 BROADWAY 7TH FL</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10019</ZIPCd>
        </USAddress>
        <EIN>133618543</EIN>
        <PrimaryActivitiesTxt>MGMT SERVICES</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>SLR</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>c</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>SLR MANAGEMENT SERVICES</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>150 EAST 42ND STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10017</ZIPCd>
        </USAddress>
        <EIN>133853145</EIN>
        <PrimaryActivitiesTxt>MGMT SERVICES</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>SLR</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>c</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>MOUNT SINAI HC VENTURES</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>150 EAST 42ND STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10017</ZIPCd>
        </USAddress>
        <EIN>460953126</EIN>
        <PrimaryActivitiesTxt>HEALTH CARE MGMT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>BIMC HOLDCO</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>c</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>ProHealth Mount Sinai MSO LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>2322 30TH AVE</AddressLine1Txt>
          <CityNm>ASTORIA</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>111023255</ZIPCd>
        </USAddress>
        <EIN>844995364</EIN>
        <PrimaryActivitiesTxt>MGMT SERVICES</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MS NETWORK</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>MSHS VACCINE COMPANY</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>1209 Orange Street</AddressLine1Txt>
          <CityNm>Wilmington</CityNm>
          <StateAbbreviationCd>DE</StateAbbreviationCd>
          <ZIPCd>19801</ZIPCd>
        </USAddress>
        <EIN>874250003</EIN>
        <PrimaryActivitiesTxt>CLINICAL LAB</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>ISMMS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>KANTARO BIOSCIENCES LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>1460 Broadway</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10036</ZIPCd>
        </USAddress>
        <EIN>851089445</EIN>
        <PrimaryActivitiesTxt>CLINICAL LAB</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>ISMMS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>true</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>true</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>true</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>true</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>B</TransactionTypeTxt>
        <InvolvedAmt>412946</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>COST</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>O</TransactionTypeTxt>
        <InvolvedAmt>237157</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>COST</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II, LINE 4, COLUMN F - MSMC REALTY CORPORATION</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECT CONTROLLING ENTITY ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI, THE MOUNT SINAI HOSPITAL AND MOUNT SINAI MEDICAL CENTER ARE ALL MEMBERS OF THIS ENTITY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II, LINE 5, COLUMN F - MSMC RESIDENTIAL REALTY LLC</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECT CONTROLLING ENTITY ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI, THE MOUNT SINAI HOSPITAL, THE MSMC REALTY CORPORATION AND THE MSMC RESIDENTIAL REALTY MANAGER, INC. ARE ALL MEMBERS OF THIS ENTITY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II, LINE 7, COLUMN F - MSMC RESIDENTIAL REALTY MANAGER, INC</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECT CONTROLLING ENTITY ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI, THE MOUNT SINAI HOSPITAL AND THE MSMC REALTY CORPORATION ARE ALL MEMBERS OF THIS ENTITY.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
