2025-11-17T15:53:32+00:00 2024-12-31 346565596 ERNST & YOUNG US LLP ONE MANHATTAN WEST NEW YORK NY 100018604 990 2024-01-01 823994798 MOUNT SINAI HEALTH SYSTEM SELF INSURANCE TRUST MOUN 7188910700 150 EAST 42ND STREET NEW YORK NY 10017 Vincent Tammaro Officer 7188910700 2025-11-17 true Laura Mayo P01962945 2127733000 2025-11-17 2024 2025-03-06 01:10:19Z VINCENT TAMMARO 150 EAST 42ND STREET NEW YORK NY 10017 106111531 false X N/A X 2018 NY A SELF INSURANCE PROGRAM FOR THE PURPOSE OF SETTLING HEALTH CARE PATIENT CLAIMS 1 0 0 0 0 0 103452620 105719075 5185553 392456 0 108638173 106111531 0 0 2502 9460 0 0 110447520 97571788 110450022 97581248 -1811849 8530283 481911261 588189626 485294783 553249624 -3383522 34940002 MOUNT SINAI HEALTH SYSTEM SELF INSURANCE TRUST IS A SELF INSURANCE PROGRAM FOR THE PURPOSE OF SETTLING HEALTH CARE PATIENT CLAIMS ARISING FROM MEDICAL MALPRACTICE LIABILITY AND HOSPITAL PROFESSIONAL LIABILITY CLAIMS AGAINST THE MEMBERS OF THE MOUNT SINAI HEALTH SYSTEM THEIR EMPLOYEES AND AGENTS. false false 97581248 105719075 PAYMENTS FROM THE TRUST FOR SETTLING HEALTH CARE CLAIMS ASSERTING PROFESSIONAL NEGLIGENCE; INCLUDING EXCESS INSURANCE PREMIUMS FOR CLAIMS EXCEEDING THE SELF INSURANCE RETENTION AND OTHER MISCELLANEOUS EXPENSES RELATED TO THE PROGRAM FOR ACTUARIAL EXPENSES. 97581248 true false false false false false false false false false false false false false true false false false false false true false false false false false false false false false false false false false false false false false false false false false false false false true true true false false true 0 0 0 false false false false false false false false false false false false X 1 0 false false false false false true true false false false false false true false false false false false false false false false X COMERICA BANK & TRST NAT ASSOC 3132591398 100 RENAISSANCE CENTER DETROIT MI 48226 COMERICA BANK TRUST NATIONA INSTITUTIONAL TRUSTEE 0.3 0.0 X 9460 0 0 9460 0 0 0 false false false 0 0 PREMIUM EARNED AND PREMIUM ADJUSTMENT 900099 105719075 105719075 0 0 0 0 105719075 392456 392456 0 0 273479 0 273479 0 0 0 0 0 106111531 105719075 0 392456 9460 9460 16979 16979 0 0 LOSS & LAE ADJUSTMENT 97554809 97554809 0 0 0 0 97581248 97581248 0 0 4144685 16873798 67434798 73624889 0 0 0 0 0 0 0 0 410331778 497690939 0 0 0 0 481911261 588189626 0 0 485294783 553249624 485294783 553249624 X -3383522 34940001 -3383522 34940001 481911261 588189625 8530283 29519762 0 X false false false X X 5 ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI 136171197 2 false 0 0 THE MOUNT SINAI HOSPITAL 131624096 3 false 0 0 BETH ISREAL MEDICAL CENTER 135564934 3 false 0 0 ST LUKE'S ROOSEVELT HOSPITAL CENTER 132997301 3 false 0 0 THE NEW YORK EYE AND EAR INFIRMARY 135562304 3 false 0 0 5 0 0 false false false false false false false false false false false false false false false false Schedule A, Part IV, Section A, Line 1 Supported Orgs Listed By Name MOUNT SINAI HEALTH SYSTEM SELF INSURANCE TRUST IS A SECTION 501(C)(3) SUPPORTING ORGANIZATION, ORGANIZED AND OPERATED FOR THE BENEFIT OF MOUNT SINAI HEALTH SYSTEM (MSHS) AND ITS CONTROLLED ENTITIES, THE SUPPORTED ORGANIZATIONS. Schedule A, Part IV, Section C, Line 1 Majority director detail THE TRUSTEE, COMERICA BANK & TRUST, THE INSTITUTIONAL TRUSTEE, IS SELECTED AND OVERSEEN BY THE GRANTOR, MOUNT SINAI HEALTH SYSTEM (MSHS), AN INTERMEDIARY SUPPORTING ORGANIZATION, WHICH SUPPORTS THE SAME SUPPORTED ORGANIZATIONS OF THE TRUST AS LISTED ABOVE. EACH OF THE TRUSTEES AND OFFICER OF MSHS SERVE AS DIRECTORS, TRUSTEES AND/OR OFFICERS OF ONE OR MORE OF THE SUPPORTED ORGANIZATIONS LISTED ABOVE. CONSEQUENTLY, THE TRUST, MSHS, AND THE HOSPITALS ARE OPERATED, SUPERVISED, AND CONTROLLED BY COMMON INDIVIDUALS, THE COMMON DIRECTORS OF MSHS AND THE HOSPITALS. Federal Income Taxes LOSSES AND LOSS ADJUSTMENT EXP 549121000 UNEARNED PV 4121531 OTHER 7093 553249624 Central America and the Caribbean 0 0 Investments N/A 502199616 0 0 0 0 0 0 502199616 0 502199616 false false false false true false Schedule F, Part I, Line 3 Method used to account for expenditures on org's financial statements CENTRAL AMERICA AND THE CARIBBEAN-Other Form 990, Part VI, Line 12c CONFLICT OF INTEREST POLICY MOUNT SINAI HEALTH SYSTEM SELF INSURANCE TRUST HAS ADOPTED AND IMPLEMENTED THE CONFLICT OF INTEREST POLICY OF THE MOUNT SINAI HEALTH SYSTEM. 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. Form 990, Part VI, Line 7a Members or stockholders electing members of governing body THE GRANTOR, MOUNT SINAI HEALTH SYSTEM, HAS THE RIGHT TO REPLACE THE TRUSTEE AT ANY TIME UPON (90) DAYS PRIOR NOTICE, OR UPON SHORTER NOTICE IF ACCEPTABLE TO THE TRUSTEE. UPON THE RESIGNATION OR REMOVAL OF THE TRUSTEE, THE GRANTOR HAS THE AUTHORITY TO NAME A SUCCESSOR TRUSTEE WHO SHALL BECOME A SIGNATORY TO AND BE BOUND BY THE TERMS AND PROVISIONS OF THE TRUST AGREEMENT AS IT MAY BE AMENDED CONTEMPORANEOUSLY WITH THE APPOINTMENT OF A SUCCESSOR TRUSTEE. Form 990, Part VI, Line 7b Decisions requiring approval by members or stockholders MOUNT SINAI HEALTH SYSTEM CONTROLS THE TRUST BY VIRTUE OF ITS POWERS AND STATUS AS THE TRUST'S GRANTOR. Form 990, Part VI, Line 11b Review of form 990 by governing body 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 & YOUNG (EY), PARTICIPATED IN THE PREPARATION OF, AND REVIEWED, ALL TAX RETURNS. A QUESTIONNAIRE WAS CIRCULATED TO ALL TRUSTEES (I.E., 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. THE SAME PROCESS WAS CONDUCTED BY THE FINANCE DEPARTMENT, THE GENERAL COUNSEL'S OFFICE, AND THE AUDIT AND COMPLIANCE DEPARTMENT 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 ENTIRE 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 (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 17, 2025, BE PROVIDED TO ALL TRUSTEES VIA THE TRUSTEES' CONFIDENTIAL WEBSITE, AND THOSE RETURNS WERE SO PROVIDED BEFORE BEING FILED. Form 990, Part VI, Line 19 Required documents available to the public GOVERNING DOCUMENTS AND 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. THE MOUNT SINAI MEDICAL CENTER ONE GUSTAVE L LEVY PLACE NEW YORK NY 10029 136271888 SUPPORT NY 501(c)(3) Type II MSHS false THE MOUNT SINAI HOSPITAL ONE GUSTAVE L LEVY PLACE NEW YORK NY 10029 131624096 HOSPITAL NY 501(c)(3) 3 MSHG true MITRAL FOUNDATION 1190 FIFTH AVENUE NEW YORK NY 10029 800468600 RESEARCH NY 501(c)(3) Type I ISMMS true THE MOUNT SINAI CHILDREN'S CENTER FND ONE GUSTAVE L LEVY PLACE NEW YORK NY 10029 223059294 SUPPORT NY 501(c)(3) Type I ISMMS true MSMC REALTY CORPORATION MSMC REALTY CORPORATION NEW YORK NY 10029 133852596 REAL ESTATE NY 501(c)(3) Type I ISMMS MSH & MSMC REAL CORP true MSMC RESIDENTIAL REALTY LLC 1425 MADISON AVENUE MADISON AVENUE NY 10029 200244426 REAL ESTATE NY 501(c)(3) Type I ISMMS MSH & MSMC REAL CORP false MSMC RESIDENTIAL REALTY MANAGER INC NE GUSTAVE L LEVY PLACE NEW YORK NY 10029 201289396 MGMT NY 501(c)(3) Type II ISMMS MSH & MSMC REAL CORP true VALENTIN FUSTER MT SINAI FND SCI HLTH ONE GUSTAVE L LEVY PLACE NEW YORK NY 10029 800952088 SUPPORT NY 501(c)(3) Type I ISMMS & MSH true MOUNT SINAI HEALTH SYSTEM INC ONE GUSTAVE L LEVY PLACE NEW YORK NY 10029 HOLDING CO NY 501(c)(3) Type II false MOUNT SINAI HOSPITAL GROUP INC ONE GUSTAVE L LEVY PLACE NEW YORK NY 10029 464242915 HOLDING CO NY 501(c)(3) Type II MSHS true ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI ONE GUSTAVE L LEVY PLACE NEW YORK NY 10029 136171197 SCHOOL NY 501(c)(3) 2 MSHS true CONTINUUM HEALTH PARTNERS INC 150 EAST 42ND STREET NEW YORK NY 10017 133939476 HOLDING CO NY 501(c)(3) Type I false BIMC HOLDING CORPORATION FIRST AVENUE AT 16TH STREET NEW YORK NY 10003 133444730 HOLDING CO NY 501(c)(3) Type II BIMC true MOUNT SINAI AMBULATORY VENTURES INC 150 EAST 42ND STREET NEW YORK NY 10017 133838460 SURGICENTER NY 501(c)(3) 3 MSHS true BI NURSING HOME COMPANY 327 EAST 17TH STREET NEW YORK NY 10003 133627753 NURSING HOME NY 501(c)(3) 3 BIMC HOLDCO true EAST 17TH STREET PROPERTIES INC 150 EAST 42ND STREET NEW YORK NY 10017 133547502 REAL ESTATE NY 501(c)(3) 10 BIMC HOLDCO true THE LONG ISLAND COLLEGE HOSPITAL 150 EAST 42ND STREET NEW YORK NY 10017 111018985 HOSPITAL NY 501(c)(3) 3 CHP false ST LUKE'S-ROOSEVELT HOSPITAL CENTER 1111 AMSTERDAM AVENUE NEW YORK NY 10025 132997301 HOSPITAL NY 501(c)(3) 3 MSHG true AUGUSTUS & JAMES CORPORATION 150 EAST 42ND STREET NEW YORK NY 10017 133392851 REAL ESTATE NY 501(c)(3) Type I SLR true ST LUKE'S-ROOSEVELT INSTITUTE FOR HEALT 1111 AMSTERDAM AVENUE NEW YORK NY 10025 132914343 RESEARCH NY 501(c)(3) 4 SLR true NEW YORK EYE AND EAR INFIRMARY 310 EAST 14TH STREET NEW YORK NY 10003 135562304 HOSPITAL NY 501(c)(3) 3 MSHG true NYEEI HOUSING COMPANY INC 317-327 EAST 13TH STREET NEW YORK NY 10003 311696826 REAL ESTATE NY 501(c)(2) NYEE true BETH ISRAEL MEDICAL CENTER FDN INC 150 EAST 42ND STREET NEW YORK NY 10017 300571387 FUNDRAISING NY 501(c)(3) 7 BIMC true ST LUKE'S-ROOSEVELT HOSPITAL CENTER FDN 150 EAST 42ND STREET NEW YORK NY 10017 300571390 FUNDRAISING NY 501(c)(3) 7 SLR true BETH ISRAEL MEDICAL CENTER FIRST AVENUE AT 16TH STREET NEW YORK NY 10003 135564934 HOSPITAL NY 501(c)(3) 3 MSHG true MOUNT SINAI HEALTH PARTNERS PC 150 EAST 42ND STREET 5TH FLR NEW YORK NY 10017 812057452 HEALTHCARE NY 501(c)(3) 10 MSH true SOUTH NASSAU COMMUNITIES HOSPITAL INC ONE HEALTHY WAY OCEANSIDE NY 11572 111352310 HOSPITAL NY 501(c)(3) 3 MSHG false EAST 98TH STREET COMMUNITY SERVICES INC ONE GUSTAVE L LEVY PLACE NEW YORK NY 10029 822536805 AMB SRGY CNTR NY 501(c)(3) 3 MSHS true BACHMANN-STRAUSS DYSTONIA FOUNDATION INC 150 EAST 42ND STREET NEW YORK NY 10017 133804248 FUNDRAISING NY 501(c)(3) Type II MSHS true CARE CONTINUUM VENTURES INC ONE GUSTAVE L LEVY PLACE NEW YORK NY 10029 863155355 SUPPORT NY 501(c)(3) Type II MSHS true MSS HEALTH PC 150 EAST 42ND STREET 5E-32 NEW YORK NY 10017 862530666 HEALTHCARE NJ 501(c)(3) 10 MSH true MANHATTAN MANAGEMENT SERVICES 1780 BROADWAY 7TH FL NEW YORK NY 10019 133618543 MGMT SERVICES NY SLR C Corporation false SLR MANAGEMENT SERVICES 150 EAST 42ND STREET NEW YORK NY 10017 133853145 MGMT SERVICES NY SLR C Corporation false MOUNT SINAI HC VENTURES 150 EAST 42ND STREET NEW YORK NY 10017 460953126 HEALTH CARE MGMT NY BIMC HOLDCO C Corporation false MSHS Vaccine Company 1209 Orange Street Wilmington DE 19801 874250003 Clinical Lab DE ISMMS C Corporation false Kantaro Biosciences LLC 1460 Broadway New York NY 10036 851089445 clinical lab NY ISMMS C Corporation false false false false false false false false false false false false false false false false false false false true THE MOUNT SINAI HOSPITAL S 64271000 cost ST LUKE'S-ROOSEVELT HOSPITAL CENTER S 13105000 cost BETH ISRAEL MEDICAL CENTER S 12866000 cost NEW YORK EYE AND EAR INFIRMARY S 1430000 cost