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MACKINAC STRAITS HEALTH SYSTEM INC

EIN 20-8756459 SAINT IGNACE, MI

Largest nonprofits in Michigan

Revenue 2024
$89,986,524
Expenses 2024
$77,925,935

Program services were 81.9% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
E21
Classification
1000
Street
1140 N STATE ST

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).

Other organizations at this address

2 other organizations in the IRS Business Master File list the same street address. matched by us

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

Mission and programs · 2024

Mission

PROVIDING QUALITY HEALTHCARE TO THE FAMILIES AND COMMUNITIES WE SERVE.

Activities or mission (Part I)

MACKINAC STRAITS HEALTH SYSTEM WILL BE A DESTINATION HEALTH SYSTEM, DELIVERING THE BEST CARE AND INVESTING IN COMMUNITY WELLNESS.

  • MACKINAC STRAITS HEALTH SYSTEM INC. OPERATES A 15-BED ACUTE CARE FACILITY, A 48-BED LONG-TERM CARE UNIT, AND SEVERAL PHYSICIAN CLINICS IN MACKINAC COUNTY, MICHIGAN. THE HEALTH SYSTEM PROVIDES COMPREHENSIVE INPATIENT, OUTPATIENT, EMERGENCY, AND PHYSICIAN SERVICES TO THE RESIDENTS OF MACKINAC COUNTY AND THE SURROUNDING AREAS.

    Expenses $63,804,105 · Revenue $82,925,901

As filed on the 2024 return.

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.

  • John Moffat

    VICE CHIEF OF STAFF & PHYSICIAN

    Total calculated
    $636,250
    From this org
    $597,047
    From related orgs
    $0
    Other
    $39,203
    Hours/week
    40 + 2 related

    Schedule J breakdown matched by us

    Base
    $597,047
    Bonus
    $0
    Other
    $0
    Deferred
    $17,250
    Nontaxable benefits
    $21,953
    Filer's total
    $636,250
  • Susan Strich

    POST CHIEF OF STAFF

    Total calculated
    $540,589
    From this org
    $471,301
    From related orgs
    $0
    Other
    $69,288
    Hours/week
    40 + 2 related

    Schedule J breakdown matched by us

    Base
    $422,287
    Bonus
    $0
    Other
    $49,014
    Deferred
    $41,400
    Nontaxable benefits
    $27,888
    Filer's total
    $540,589
  • Karen Cheeseman

    CEO

    Total calculated
    $375,968
    From this org
    $310,874
    From related orgs
    $0
    Other
    $65,094
    Hours/week
    40 + 2.7 related

    Schedule J breakdown matched by us

    Base
    $306,842
    Bonus
    $0
    Other
    $4,032
    Deferred
    $37,206
    Nontaxable benefits
    $27,888
    Filer's total
    $375,968
  • Robert Currier

    CHIEF OF STAFF

    Total calculated
    $0
    Hours/week
    8 + 2 related
  • Loretta Leja

    POST CHIEF OF STAFF/PHYSICIAN (THRU 4/2024)

    Total calculated
    $0
    Hours/week
    40 + 2 related
  • Steve Autore

    CHAIRMAN OF BOARD

    Total calculated
    $0
    Hours/week
    1 + 2.7 related
  • Patrick Shannon

    VICE CHAIRMAN OF BOARD

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Mark Elmblad

    TREASURER OF THE BOARD

    Total calculated
    $0
    Hours/week
    1 + 3.7 related
  • Margaret Doud

    SECRETARY OF BOARD

    Total calculated
    $0
    Hours/week
    1 + 3.7 related
  • Prentiss Brown

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1 + 2.7 related
  • Bryan Cross

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1 + 2.7 related
  • Christine McPherson

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Rd Musser III

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • James North

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1 + 3.7 related
  • Richard Smith

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Lydia Watson

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    1 + 2.7 related
  • Jason Anderson

    CFO

    Total calculated
    $196,768
    From this org
    $150,442
    From related orgs
    $0
    Other
    $46,326
    Hours/week
    40 + 2.7 related

    Schedule J breakdown matched by us

    Base
    $150,442
    Bonus
    $0
    Other
    $0
    Deferred
    $18,438
    Nontaxable benefits
    $27,888
    Filer's total
    $196,768
  • Matthew Bowes

    PHYSICIAN

    Total calculated
    $489,036
    From this org
    $416,698
    From related orgs
    $0
    Other
    $72,338
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $416,698
    Bonus
    $0
    Other
    $0
    Deferred
    $41,400
    Nontaxable benefits
    $30,938
    Filer's total
    $489,036
  • Amy Bolmer

    PHYSICIAN

    Total calculated
    $432,140
    From this org
    $380,579
    From related orgs
    $0
    Other
    $51,561
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $369,395
    Bonus
    $0
    Other
    $11,184
    Deferred
    $41,400
    Nontaxable benefits
    $10,161
    Filer's total
    $432,140
  • David Bouslough

    PHYSICIAN

    Total calculated
    $394,622
    From this org
    $349,484
    From related orgs
    $0
    Other
    $45,138
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $349,484
    Bonus
    $0
    Other
    $0
    Deferred
    $17,250
    Nontaxable benefits
    $27,888
    Filer's total
    $394,622
  • Gregory Hessler

    PHYSICIAN

    Total calculated
    $391,184
    From this org
    $327,076
    From related orgs
    $0
    Other
    $64,108
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $320,308
    Bonus
    $0
    Other
    $6,768
    Deferred
    $39,106
    Nontaxable benefits
    $25,002
    Filer's total
    $391,184
  • Marvyn Neri

    PHYSICIAN

    Total calculated
    $357,967
    From this org
    $319,988
    From related orgs
    $0
    Other
    $37,979
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $319,988
    Bonus
    $0
    Other
    $0
    Deferred
    $16,000
    Nontaxable benefits
    $21,979
    Filer's total
    $357,967

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, and on a Form 990-PF Part VIII's — 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
    $89,986,524
    Expenses
    $77,925,935
    Contributions
    $5,985,441
    Grants paid
    $0
  • 2023
    Revenue
    $80,377,937
    Expenses
    $71,831,353
    Contributions
    $5,355,050
    Grants paid
    $0
  • 2022
    Revenue
    $69,313,339
    Expenses
    $64,654,395
    Contributions
    $2,969,683
    Grants paid
    $0

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.

Other returns filed

  • 2024 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2023 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2022 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2021 · 990

    Revenue
    $67,265,328
    Expenses
    $59,793,210
    Assets (EOY)
    $55,869,740
  • 2021 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2020 · 990

    Revenue
    $58,908,352
    Expenses
    $53,750,704
    Assets (EOY)
    $52,539,258
  • 2020 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2019 · 990

    Revenue
    $52,270,622
    Expenses
    $52,028,895
    Assets (EOY)
    $42,754,641
  • 2018 · 990

    Revenue
    $48,061,161
    Expenses
    $47,606,997
    Assets (EOY)
    $42,516,020
  • 2017 · 990

    Revenue
    $47,324,991
    Expenses
    $45,756,131
    Assets (EOY)
    $44,273,471

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

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

Declared as related by

Taxable family

From Schedule R Parts I, III and IV: entities that legally are the filer, and taxable partnerships, corporations and trusts it is related to. These record ownership and control, not shared board members or money.

Related corporations and trusts on its 2024 return

  • STRAITS AREA PHARMACY INC

    C · RETAIL PHARMACY · MI · 100% owned · share of income $1,098,342 · share of assets $1,708,647 · controlled entity

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 13 October 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.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.