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COMMON GROUND HEALTHCARE COOPERATIVE

EIN 45-3309488 BROOKFIELD, WI

Revenue 2024
$439,395,684
Expenses 2024
$448,856,338

As filed

Subsection
03
NTEE code
E99
Classification
1000
Street
300 N EXECUTIVE DR STE 300

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • TONNI LARSON

    BOARD CHAIR

    Total calculated
    $13,320
    From this org
    $13,320
    From related orgs
    $0
    Other
    $0
    Hours/week
    6

  • AMY MURPHY

    BOARD VICE-CHAIR

    Total calculated
    $11,100
    From this org
    $11,100
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • KEVIN GILLIGAN

    SECRETARY/TREASURER

    Total calculated
    $8,880
    From this org
    $8,880
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • BECKY TUCHSCHERER

    DIRECTOR

    Total calculated
    $8,880
    From this org
    $8,880
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • CHERYL THOMAS

    DIRECTOR

    Total calculated
    $8,880
    From this org
    $8,880
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • DAVID STRAM

    DIRECTOR

    Total calculated
    $8,880
    From this org
    $8,880
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • DEAN SCHADRIE

    DIRECTOR

    Total calculated
    $8,880
    From this org
    $8,880
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • MICHAEL WINKLER

    DIRECTOR

    Total calculated
    $8,880
    From this org
    $8,880
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • WILLIAM KORT

    DIRECTOR

    Total calculated
    $8,880
    From this org
    $8,880
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • JAMES WESP

    NON-VOTING DIRECTOR

    Total calculated
    $8,880
    From this org
    $8,880
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • JOHN MAGLIO

    NON-VOTING DIRECTOR

    Total calculated
    $8,880
    From this org
    $8,880
    From related orgs
    $0
    Other
    $0
    Hours/week
    1

  • CATHY MAHAFFEY

    CEO

    Total calculated
    $1,050,491
    From this org
    $991,516
    From related orgs
    $0
    Other
    $58,975
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $487,378
    Bonus
    $94,156
    Other
    $409,982
    Deferred
    $16,830
    Nontaxable benefits
    $42,145
    Filer's total
    $1,050,491

  • BRIAN DAMIANI

    CIO

    Total calculated
    $425,526
    From this org
    $362,785
    From related orgs
    $0
    Other
    $62,741
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $282,125
    Bonus
    $51,239
    Other
    $29,421
    Deferred
    $19,010
    Nontaxable benefits
    $43,731
    Filer's total
    $425,526

  • BRIAN GARTNER

    CHIEF OF STAFF

    Total calculated
    $375,099
    From this org
    $337,561
    From related orgs
    $0
    Other
    $37,538
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $278,891
    Bonus
    $46,082
    Other
    $12,588
    Deferred
    $20,581
    Nontaxable benefits
    $16,957
    Filer's total
    $375,099

  • JESSICA KOTTWITZ

    CAO - CHIEF ADMINISTRATIVE OFFICER

    Total calculated
    $327,634
    From this org
    $290,559
    From related orgs
    $0
    Other
    $37,075
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $231,002
    Bonus
    $38,556
    Other
    $21,001
    Deferred
    $16,634
    Nontaxable benefits
    $20,441
    Filer's total
    $327,634

  • MELISSA HENDERSON

    CCO - CHIEF COMPLIANCE OFFICER

    Total calculated
    $329,880
    From this org
    $310,104
    From related orgs
    $0
    Other
    $19,776
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $224,567
    Bonus
    $46,942
    Other
    $38,595
    Deferred
    $17,045
    Nontaxable benefits
    $2,731
    Filer's total
    $329,880

  • TODD HUTCHISON

    CFO

    Total calculated
    $383,727
    From this org
    $320,138
    From related orgs
    $0
    Other
    $63,589
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $267,931
    Bonus
    $32,314
    Other
    $19,893
    Deferred
    $19,910
    Nontaxable benefits
    $43,679
    Filer's total
    $383,727

  • AARON JACKSON

    VP PROVIDER CONTRACTING & STRATEGY

    Total calculated
    $286,719
    From this org
    $266,555
    From related orgs
    $0
    Other
    $20,164
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $210,162
    Bonus
    $35,732
    Other
    $20,661
    Deferred
    $8,699
    Nontaxable benefits
    $11,465
    Filer's total
    $286,719

  • JENNIFER WALKOWIAK

    VP OF BUSINESS DEVELOPMENT

    Total calculated
    $259,848
    From this org
    $228,297
    From related orgs
    $0
    Other
    $31,551
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $170,272
    Bonus
    $32,178
    Other
    $25,847
    Deferred
    $13,069
    Nontaxable benefits
    $18,482
    Filer's total
    $259,848

  • SCOTT BERGMAN

    CONTROLLER

    Total calculated
    $223,440
    From this org
    $180,907
    From related orgs
    $0
    Other
    $42,533
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $141,994
    Bonus
    $16,393
    Other
    $22,520
    Deferred
    $11,521
    Nontaxable benefits
    $31,012
    Filer's total
    $223,440

  • SHELLY JOHNSON

    HEALTH PLAN QUALITY ADMINISTRATOR

    Total calculated
    $248,893
    From this org
    $219,146
    From related orgs
    $0
    Other
    $29,747
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $165,895
    Bonus
    $20,274
    Other
    $32,977
    Deferred
    $12,871
    Nontaxable benefits
    $16,876
    Filer's total
    $248,893

  • DAN SCHUMACHER DIR OF

    ACTUARIAL & ANALYTICAL SERVICES

    Total calculated
    $250,209
    From this org
    $220,365
    From related orgs
    $0
    Other
    $29,844
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $185,030
    Bonus
    $28,408
    Other
    $6,927
    Deferred
    $13,236
    Nontaxable benefits
    $16,608
    Filer's total
    $250,209

  • SCOTT ANDERSON

    FORMER CMO - CHIEF MEDICAL OFFICER

    Total calculated
    $149,139
    From this org
    $149,139
    From related orgs
    $0
    Other
    $0
    Hours/week
    0

    Schedule J breakdown matched by us

    Base
    $0
    Bonus
    $0
    Other
    $149,139
    Deferred
    $0
    Nontaxable benefits
    $0
    Filer's total
    $149,139

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $439,395,684
    Expenses
    $448,856,338
    Contributions
    $0
    Grants paid
    $15,700
  • 2023
    Revenue
    $459,376,168
    Expenses
    $450,360,338
    Contributions
    $0
    Grants paid
    $6,000
  • 2022
    Revenue
    $421,543,751
    Expenses
    $439,502,356
    Contributions
    $0
    Grants paid
    $491

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Grants made

Where these grants went next →

Grants received

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2024 return

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 10 September 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.