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Person · officer / director

Mark Sullivan

President & Chief Executive Officer · Catholic Health System INC

President & Chief Executive Officer at Catholic Health System INC. Listed as an officer, director, or key employee across 18 organizations on the Form 990 record.

This is me
Ambiguous identity This name matches 73 other individuals we could not verify as the same person. Each is kept as a separate record below — treat them as distinct people unless an explicit match is confirmed.
Organizations
18
Roles reported
18
Reported compensation
$1.6M
Others who share this name
73

Who this is

Profile

The filed facts are verified from the IRS filings. The biography is compiled from public web sources and grounded to that filed record.

✓ Verified from filings
●
Reported as President & Chief Executive Officer of Catholic Health System INC, based in Buffalo, NY.
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Received $1.6M in total reported compensation on the most recent Form 990 (Part VII).
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Also listed as President & CEO of St Elizabeths Home for the Aged, uncompensated.
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Also listed as Secretary/Director of K M H Homes INC, uncompensated.
Facts extracted directly from each organization's Form 990, Part VII.
Biography Web-sourced

Mark Sullivan served as President & Chief Executive Officer of Catholic Health in Buffalo, NY, stepping down on August 31, 2023, after a distinguished 30-year career with the health system. He began his career as an intern in 1994 and steadily rose through leadership ranks, becoming CEO in 2018.

During his tenure as CEO, he led the organization through the COVID-19 pandemic, implemented the Epic electronic health record system, and focused on quality and patient safety. He is recognized as a respected healthcare executive and plans to pursue opportunities to mentor and educate the next generation of healthcare leaders.

Compiled from public web sources (3 cited), grounded to the filed record.

Track record

Career & tenure

Real tenure, career, and education — from public web sources, what you need to vet a founder or leader beyond the filing window.

Tenure here
1994

Affiliations

Organizations

Linked as the same person by IRS Schedule R, a shared officer mailing address, or shared fellow board members.

K M H Homes INC Secretary/Director · $823K revenue · Buffalo, NYKMH HOMES, INC. WAS ESTABLISHED IN 1991 AS A NOT-FOR PROFIT CORPORATION TO HOLD PROPERTY OPERATED BY KENMORE MERCY HOSPITAL, AN AFFILIATED…Filed FY2024, FY2023, FY2022, FY2021, FY2020 · Source: Form 990, Part VII
Our Lady of Victory Renaissance Corporation President Chs - Former · $4.9M revenue · Buffalo, NYTHE MISSION OF OUL LADY OF VICTORY, AS PART OF THE CATHOLIC HEALTH SYSTEM (CHS) IN WESTERN NEW YORK, IS TO PROVIDE QUALITY HEALTHCARE SERVICES IN A…Filed FY2024 · Source: Form 990, Part VII
Nazareth Home of the Franciscan Sisters President Chs - Former · Buffalo, NYTHE CATHOLIC HEALTH SYSTEM (CHS) MISSION IS TO PROVIDE QUALITY HEALTHCARE SERVICES IN A LONG TERM CARE SETTING. COMMITTED TO A COMMON MISSION, CHS…Filed FY2024 · Source: Form 990, Part VII
Mcauley-Seton Home Care INC Former President, Chs · $49.8M revenue · Buffalo, NYThe Mission of McAuley Seton Home Care, as part of the Catholic Health System (CHS) in Western New York, is to provide quality healthcare services in…Filed FY2024 · Source: Form 990, Part VII
Niagara Homemaker Services INC Former President, Chs · $6.9M revenue · Buffalo, NYThe Mission of Mercy Home Care, as part of the Catholic Health System (CHS) in Western New York, is to provide quality healthcare services in a home…Filed FY2024 · Source: Form 990, Part VII
Kenmore Mercy Hospital President Chs - Former · $225.4M revenue · Buffalo, NYThe Mission of Kenmore Mercy Hospital, as part of the Catholic Health System (CHS) in Western New York, is to provide quality healthcare services in…Filed FY2024 · Source: Form 990, Part VII
Sisters of Charity Hospital of Buffalo New York President Chs - Former · $470.9M revenue · Buffalo, NYThe Mission of Sisters of Charity Hospital, as part of the Catholic Health System (CHS) in Western New York, is to provide quality healthcare…Filed FY2024 · Source: Form 990, Part VII
Mount St Marys Hospital of Niagara Falls President Chs - Former · $160.3M revenue · Buffalo, NYThe Mission of Mount St. Mary's Hospital of Niagara Falls, as part of the Catholic Health System (CHS) in Western New York, is to provide quality…Filed FY2024 · Source: Form 990, Part VII
Mercy Hospital of Buffalo President Chs - Former · $594.3M revenue · Buffalo, NYThe Mission of Mercy Hospital, as part of the Catholic Health System (CHS) in Western New York, is to provide quality healthcare services in an acute…Filed FY2024 · Source: Form 990, Part VII
Catholic Health System Infusion Pharmacy INC Former President, Chs · $42.7M revenue · Buffalo, NYThe Mission of Catholic Health System Infusion Phamacy, as part of the Catholic Health System (CHS) in Western New York, is to provide quality…Filed FY2024 · Source: Form 990, Part VII
Catholic Health System Program of All Inclusive Care for the Elderly President Chs - Former · $31.1M revenue · Buffalo, NYTHE MISSION OF PACE, AS PART OF THE CATHOLIC HEALTH SYSTEM (CHS) IN WESTERN NEW YORK, IS TO PROVIDE QUALITY HEALTHCARE SERVICES IN A HOME CARE…Filed FY2024 · Source: Form 990, Part VII
Wny Catholic Long Term Care INC President Chs - Former · $21.1M revenue · Buffalo, NYTHE MISSION OF FATHER BAKER MANOR, AS PART OF THE CATHOLIC HEALTH SYSTEM (CHS) IN WESTERN NEW YORK, IS TO PROVIDE QUALITY HEALTHCARE SERVICES IN A…Filed FY2024 · Source: Form 990, Part VII
St Francis of Buffalo INC President Chs - Former · $2.7M revenue · Buffalo, NYTHE MISSION OF ST. FRANCIS GERIATRIC, AS PART OF THE CATHOLIC HEALTH SYSTEM (CHS) IN WESTERN NEW YORK, IS TO PROVIDE QUALITY HEALTHCARE SERVICES IN A…Filed FY2024 · Source: Form 990, Part VII
Catholic Health System INC President & Chief Executive Officer · $198.1M revenue · Buffalo, NYThe Mission of the Catholic Health System, as part of the Catholic Health System (CHS) in Western New York, is to provide quality healthcare services…pay $1.0M → $1.6MFiled FY2023 · Source: Form 990, Part VII
$1.6Mreported comp
St Elizabeths Home for the Aged President & CEO · Buffalo, NYTHE CATHOLIC HEALTH SYSTEM (CHS) MISSION IS TO PROVIDE QUALITY HEALTHCARE SERVICES IN A LONG TERM CARE SETTING. COMMITTED TO A COMMON MISSION, CHS…Filed FY2023, FY2022, FY2021, FY2020 · Source: Form 990, Part VII
Our Lady of Victory Community Housing Development Organization I Secretary/Treasurer (fmr) · Buffalo, NYFiled FY2023 · Source: Form 990, Part VII
St Vincents Home for the Aged President & CEO · Buffalo, NYTHE CATHOLIC HEALTH SYSTEM (CHS) MISSION IS TO PROVIDE QUALITY HEALTHCARE SERVICES IN A LONG TERM CARE SETTING. COMMITTED TO A COMMON MISSION, CHS…Filed FY2023, FY2022, FY2021, FY2020 · Source: Form 990, Part VII
St Francis Home of Williamsville President & CEO · Buffalo, NYTHE CATHOLIC HEALTH SYSTEM (CHS) MISSION IS TO PROVIDE QUALITY HEALTHCARE SERVICES IN A LONG TERM CARE SETTING. COMMITTED TO A COMMON MISSION, CHS…Filed FY2023, FY2022, FY2021, FY2020 · Source: Form 990, Part VII

Disambiguation

Other people named Mark Sullivan

Different individuals who share this name, separated by IRS Schedule R, mailing address, and shared-board evidence. The 990 carries no person identifier, so some may still be the same person. Showing 60 of 73 (most roles first).

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Mark Sullivan 7 organizations · Indianapolis, IN, New Albany, IN…Catholic Charities Indianapolis INC
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Mark Sullivan 3 organizations · Coker, AL, Tuscaloosa, ALFreedom Farm INC
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Mark Sullivan 3 organizations · Atlanta, GA, Sandy Springs, GAGeorgia Apartment Association INC
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Mark Sullivan 3 organizations · Rensselaer, NY, Buffalo, NYHealthcare Association of New York State INC
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Mark Sullivan 2 organizations · Chicago, IL, Downers Grove, ILWorld Business Chicago
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Mark Sullivan 1 organization · Santa Monica, CALos Angeles Bulls Soccer Club
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Mark Sullivan 1 organization · North Fort Myers, FLRalph W Sparks American Legion Post 336 INC
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Mark Sullivan 1 organization · Princeton, NJPrinceton Merchants Association INC
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Mark Sullivan 1 organization · Lake Elmo, MNNorthwest Shoe Travelers INC
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Mark Sullivan 1 organization · Blythe, GAPinetucky Skeet and Trap Club INC
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Mark Sullivan 1 organization · Tuscaloosa, ALHospice of West Alabama Foundation
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Mark Sullivan 1 organization · Whitefish, MTWell Montana
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Mark Sullivan 1 organization · Washington, DCCouncil of the Great City Schools
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Mark Sullivan 1 organization · Katy, TX9759 Epiphany Council
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Mark Sullivan 1 organization · North Easton, MANatural Resources Trust of Easton
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Mark Sullivan 1 organization · Chicago, ILLincoln Park Builders of Chicago
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Mark Sullivan 1 organization · Colorado Spgs, COUnited States Bowling Congress INC
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Mark Sullivan 1 organization · Bethesda, MDDel Ray Club INC
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Mark Sullivan 1 organization · Dubois, PAOklahoma Civilian Defense Fire Company
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Mark Sullivan 1 organization · Washington, DCInternational Association of Airport Duty Free Stores INC
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Mark Sullivan 1 organization · Medina, OHInternational Thriller Writers INC
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Mark Sullivan 1 organization · New Durham, NHMerrymeeting Lake Association
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Mark Sullivan 1 organization · Constablevle, NYConstableville Volunteer Fire Company
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Mark Sullivan 1 organization · Oklahoma City, OKOklahoma Zoological Society INC
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Mark Sullivan 1 organization · Chicago, ILChicagoland Chamber of Commerce
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Mark Sullivan 1 organization · New York, NYSpain-U S Chamber of Commerce INC
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Mark Sullivan 1 organization · Ingomar, PAMccandless-Franklin Park Ambulance Authority
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Mark Sullivan 1 organization · Washington, DCManaged Funds Association
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Mark Sullivan 1 organization · Denver, COColorado Nonprofit Development Center
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Mark Sullivan 1 organization · Acton, MAFriends of the Acton Libraries
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Mark Sullivan 1 organization · Geneseo, NYWadsworth Library
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Mark Sullivan 1 organization · Austin, TXTexas Automobile Dealers Association
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Mark Sullivan 1 organization · Boise, IDIdaho Mountain Search and Rescue Unit INC
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Mark Sullivan 1 organization · Marion, INMarion Grant County Convention and Visitors Bureau INC
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Mark Sullivan 1 organization · Renton, WANew Horizon School
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Mark Sullivan 1 organization · Owings, MDBaltic-American Freedom Foundation
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Mark Sullivan 1 organization · Chestertown, MDGarfield Center Foundation INC
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Mark Sullivan 1 organization · Springfield, OHExchange Club Foundation of Springfield Ohio
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Mark Sullivan 1 organization · Charlotte, NCSouthern Off-Road Bicycle Association
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Mark Sullivan 1 organization · Rochester, NHRochester Main Street
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Mark Sullivan 1 organization · Burr Ridge, ILReal Estate Investment Association
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Mark Sullivan 1 organization · Nashville, TNDaystar Counseling Ministries INC
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Mark Sullivan 1 organization · Whitman, MAAls One INC
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Mark Sullivan 1 organization · Northampton, MAThe Parlor Room
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Mark Sullivan 1 organization · Goffstown, NHGoffstown Network INC
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Mark Sullivan 1 organization · New York, NYAmerican Buddhist Study Center INC
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Mark Sullivan 1 organization · Camarillo, CACamarillo Chapter No 723 Experi- Mental Aircraft Association
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Mark Sullivan 1 organization · Dubuque, IADubuque Community Y
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Mark Sullivan 1 organization · Boston, MASuffolk University
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Mark Sullivan 1 organization · Sacramento, CACalifornia Travel and Tourism Commission
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Mark Sullivan 1 organization · North Brunswick, NJInternational Brotherhood of Teamsters
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Mark Sullivan 1 organization · Center Valley, PASouthern Lehigh Public Library Assn
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Mark Sullivan 1 organization · Columbus, OH441 Simon Kenton Council
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Mark Sullivan 1 organization · Washington, DCUniversity Club of the City of Washington D C
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Mark Sullivan 1 organization · Scituate, MAScituate Knights of Columbus
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Mark Sullivan 1 organization · Salisbury, MATriton Youth Hockey Association INC
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Mark Sullivan 1 organization · Sterling City, TXSterling County Senior Citizens Center INC
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Mark Sullivan 1 organization · Groveland, MARichard J Wolnik Foundation for Als Research Trust
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Mark Sullivan 1 organization · Cottage Grove, ORWestern Pain Society
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Mark Sullivan 1 organization · Oklahoma City, OKDaystar Foundation and Library INC

Network

Serves alongside

Other officers, directors & key employees at this person's organizations, by latest reported compensation.

J
Joyce Markiewicz
Chief Business Development Officer/President & CEO · FY2023
$1.1M
S
Stephen Downing
Physician · FY2024
$1.0M
A
Alan Bolnick
Physician · FY2024
$888K
J
Jay Bolnick
Physician · FY2024
$877K
D
Dr Jay Bolnick
Physician · FY2023
$846K
D
Dr Stephen Downing
Physician · FY2023
$838K
H
Harsh Jain
Physician · FY2024
$816K
D
Dr Harsh Jain
Physician · FY2023
$813K
D
Dr Lee Guterman
Physician · FY2023
$801K
D
Dr Jiantao Xiao
Physician · FY2023
$793K
J
James Garvey
Executive VP, Chief Operating Officer · FY2023
$774K
D
Dr Parag Parikh
Physician · FY2024
$730K

Network

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Public data from IRS Form 990 e-file & the Business Master File. Individuals appear here because they were named as an officer, director, or key employee on a nonprofit's Form 990; people are grouped by name plus corroborating evidence (Schedule R, shared address, shared board members). · philanthropy.org