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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees Marshfield Clinic Inc. William McCormick, M.D.

William McCormick, M.D.

Highest compensated employee

Physician at Marshfield Clinic Inc.

Fiscal year ended December 31, 2024. Published on January 25, 2026.

$1,374,774
2024

Total compensation

William McCormick, M.D. has been listed as an employee of Marshfield Clinic Inc. in Form 990 filings since fiscal year 2023. Total compensation for William McCormick, M.D. has increased by 9.9% from 2023 to 2024.

Annual compensation details

$1,374,774
+9.9%
Physician
2024
$1.3M org
50 hrs/wk
$42k other
--
$1,250,553
Physician
2023
$1.2M org
50 hrs/wk
$47k other
--

Total compensation by year

Compare the compensation of William McCormick, M.D. to:

2024

Other employees at Marshfield Clinic Inc.

Vivekananda Gonugunta, M.D.
Physician
$2,693,464
$2,682,634 from orgNo related comp$10,830 other
Susan Turney, M.D.
Former MCHS CEO
$2,241,715
$0 from org$2,241,715 from relatedNo other comp
Brian Hoerneman, M.D.
Interim MCHS CEO
$1,623,181
$0 from org$1,584,168 from related$39,013 other
Adedayo Onitilo, M.D.
Physician
$1,601,986
$1,557,817 from orgNo related comp$44,169 other
Mohammad Alaoua, M.D.
Physician
$1,498,074
$1,449,119 from orgNo related comp$48,955 other
Olatilewa Awe, M.D.
Physician
$1,455,350
$1,431,408 from orgNo related comp$23,942 other
Tyler Dahl, M.D.
Board Member (Thru MAR 2024)
$1,208,991
$1,169,680 from orgNo related comp$39,311 other
Sanjay Kumar, M.D.
Board Member
$1,114,969
$1,072,801 from orgNo related comp$42,168 other
Kathy Bressler
MCHS COO
$1,023,032
$0 from org$985,571 from related$37,461 other
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Revisions to this profile

January 25, 2026:
2024 Marshfield Clinic Inc. 990 published
January 25, 2026:
2023 Marshfield Clinic Inc. 990 published

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