Compensation 990

Marshfield Clinic Inc.

Fiscal year ending 2024. Filed on November 4, 2025.

1000 N Oak Avenue
Marshfield, Wisconsin 54449

Marshfield Clinic Inc. (EIN: 39-0452970) has filed an IRS Form 990 since at least fiscal year 2016. In its fiscal year 2024 IRS Form 990 filing, Marshfield Clinic Inc., a 501(c)(3) charitable organization, reported compensation for 29 out of 1,382 total employees. Among the employees shown here, the average compensation is $919,460. The highest compensated employee at Marshfield Clinic Inc. is Vivekananda Gonugunta, M.D. with fiscal year 2024 compensation of $2,693,464.

Revenue, expenses, and employee compensation

Revenue

$596,530,287

Expenses

$591,495,305

Employee compensation

$344,428,493
Revenue, expenses, and employee compensation over time

Reported Compensated Employees

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
William McCormick, M.D.
Physician
$1,374,774
$1,332,801 from orgNo related comp$41,973 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
David Junker, M.D.
Board Member
$981,398
$929,786 from orgNo related comp$51,612 other
Jeanette Wojtalewicz
Interim MCHS CFO
$972,510
$0 from org$972,510 from relatedNo other comp

Contractors

Tweet Garot Mechanical Inc.
Construction
$2,967,397
Mayo Clinic Laboratories
Lab
$2,779,335
Beckman Coulter Inc.
Lab
$1,176,403
Ciox Health LLC
Professional
$1,109,558
Mckesson Pharmacy Systems LLC
Professional
$652,722

Mission Statement

WE ENRICH LIVES TO CREATE HEALTHY COMMUNITIES THROUGH ACCESSIBLE, AFFORDABLE, COMPASSIONATE HEALTH CARE.

Revisions to this organization profile

November 4, 2025:
2024 Marshfield Clinic Inc. 990 filed
November 13, 2024:
2023 Marshfield Clinic Inc. 990 filed
November 14, 2023:
2022 Marshfield Clinic Inc. 990 filed

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