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Person · officer / director

Mark S O'Halla

President and CEO of Prisma Health · Prisma Health

President and CEO of Prisma Health at Prisma Health. Listed as an officer, director, or key employee across 11 organizations on the Form 990 record.

Organizations
11
Roles reported
11
Reported compensation
$3.8M

Who this is

Profile

Everything on the left is verified from the IRS filings. The biography on the right is compiled from public web sources and grounded to that filed record.

✓ Verified from filings
Reported as President and CEO of Prisma Health of Prisma Health, based in Greenville, SC.
Received $3.8M in total reported compensation on the most recent Form 990 (Part VII).
Also listed as President and CEO of Prisma Health of Prisma Health Medical Group-Midlands, uncompensated.
Also listed as Director and Chair (start 12/1/24) of Prisma Health - Blount Memorial Hospital INC, uncompensated.
Facts extracted directly from each organization's Form 990, Part VII.
Biography Web-sourced

President and Chief Executive Officer of Prisma Health since July 2019, leading South Carolina's largest health system. Brings 30+ years of progressive senior healthcare leadership, including 13 years with McLaren Health Care, where he served as Executive VP and COO.

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
CEO since July 2019
Education
  • University of Toledo · Bachelor of Science, Accounting and Finance
  • University of Rochester · MBA, William E. Simon Graduate School of Business

Verify independently

Find them online

Primary links to check this person directly — their own pages, not an aggregator.

Affiliations

Organizations

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

P
Prisma Health President and CEO of Prisma Health · $339.5M revenue · Greenville, SCINSPIRE HEALTH. SERVE WITH COMPASSION. BE THE DIFFERENCE.pay $753K → $3.8MFiled FY2024, FY2023, FY2022, FY2021, FY2020, FY2019 · Source: Form 990, Part VII
$3.8Mreported comp
P
Prisma Health Medical Group-Midlands President and CEO of Prisma Health · $401.1M revenue · Greenville, SCINSPIRE HEALTH. SERVE WITH COMPASSION. BE THE DIFFERENCE.Filed FY2024, FY2023, FY2022, FY2021, FY2020, FY2019 · Source: Form 990, Part VII
P
Prisma Health - Blount Memorial Hospital INC Director and Chair (start 12/1/24) · $240.5M revenue · Greenville, SCINSPIRE HEALTH. SERVE WITH COMPASSION. BE THE DIFFERENCE.Filed FY2024 · Source: Form 990, Part VII
P
Prisma Health Eastern Tennessee Director/Chair (to 11/30/24), Ex-Officio Dir. · Greenville, SCFiled FY2024 · Source: Form 990, Part VII
Prisma Health-Midlands President and CEO of Prisma Health · $2.1B revenue · Greenville, SCINSPIRE HEALTH. SERVE WITH COMPASSION. BE THE DIFFERENCE.Filed FY2024, FY2023, FY2022, FY2021, FY2020, FY2019 · Source: Form 990, Part VII
Prisma Health - Upstate President and CEO of Prisma Health · $3.6B revenue · Greenville, SCINSPIRE HEALTH. SERVE WITH COMPASSION. BE THE DIFFERENCE.Filed FY2024, FY2023, FY2022, FY2021, FY2020, FY2019 · Source: Form 990, Part VII
B
Blount Memorial Physician Group INC Director and Chair · $15.6M revenue · Greenville, SCINSPIRE HEALTH. SERVE WITH COMPASSION. BE THE DIFFERENCE.Filed FY2024 · Source: Form 990, Part VII
P
Prisma Health-University Medical Group President and CEO of Prisma Health · $925.8M revenue · Greenville, SCINSPIRE HEALTH. SERVE WITH COMPASSION. BE THE DIFFERENCE.Filed FY2024, FY2023, FY2022, FY2021, FY2020, FY2019 · Source: Form 990, Part VII
Prisma Health-Upstate Foundation President and CEO of Prisma Health · $11.6M revenue · Greenville, SCTHE PRISMA HEALTH-UPSTATE FOUNDATION WAS ESTABLISHED IN 2023 WITH A COMMITMENT TO IMPROVING THE HEALTH OF THE COMMUNITIES WE SERVE IN THE UPSTATE.…Filed FY2024 · Source: Form 990, Part VII
Prisma Health Tuomey President and CEO of Prisma Health · $242.5M revenue · Greenville, SCINSPIRE HEALTH. SERVE WITH COMPASSION. BE THE DIFFERENCE.Filed FY2024, FY2023, FY2022, FY2021, FY2020, FY2019 · Source: Form 990, Part VII
G
Greenville Health Corporation President and CEO of Prisma Health · $230.3M revenue · Greenville, SCINSPIRE HEALTH. SERVE WITH COMPASSION. BE THE DIFFERENCE.Filed FY2024, FY2023, FY2022, FY2021, FY2020, FY2019 · Source: Form 990, Part VII

Network

Serves alongside

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

B
Physician · FY2023
$2.1M
M
Physician · FY2023
$2.1M
E
Physician · FY2023
$1.9M
H
Frmr EVP Chief Legal Officer (until 9/30/23) · FY2023
$1.9M
R
Physician · FY2023
$1.8M
C
EVP Chief Operating Officer · FY2023
$1.8M
M
EVP Chief Financial Officer · FY2023
$1.7M
A
Physician · FY2023
$1.7M
D
Physician · FY2022
$1.7M
D
Physician · FY2020
$1.6M
S
Physician · FY2023
$1.6M
C
Physician · FY2024
$1.6M

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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