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COPLEY MEMORIAL HOSPITAL INC

EIN 36-2170840 AURORA, IL

Revenue 2023
$458,039,278
Expenses 2023
$407,943,196

Program services were 81.0% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
E220
Classification
1000
Street
2000 OGDEN AVE

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 · 2023

As listed in Part VII of the 2023 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Bruce W Dienst

    IMMDIATE PAST CHAIRMAN OF THE BOARD/DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 3 related
  • Christine Sobek

    CHAIRMAN OF THE BOARD/DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 3 related
  • John Diederich MA MBA FACHE

    President & CEO/Director

    Total calculated
    $1,441,519
    From this org
    $1,397,127
    From related orgs
    $0
    Other
    $44,392
    Hours/week
    40 + 4 related

    Schedule J breakdown matched by us

    Base
    $750,625
    Bonus
    $179,821
    Other
    $466,681
    Deferred
    $11,250
    Nontaxable benefits
    $33,142
    Filer's total
    $1,441,519
  • Trish Anen

    VICE CHAIRMAN OF THE BOARD/DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Andrew VanEekeren END 923

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Catherine Cederoth

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 3 related
  • Dave Mead

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Herbert Knight END 923

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Jae B Joo MD

    CHIEF OF STAFF/DIRECTOR

    Total calculated
    $684,432
    From this org
    $642,568
    From related orgs
    $0
    Other
    $41,864
    Hours/week
    40 + 2 related

    Schedule J breakdown matched by us

    Base
    $533,929
    Bonus
    $105,704
    Other
    $2,935
    Deferred
    $11,250
    Nontaxable benefits
    $30,614
    Filer's total
    $684,432
  • James Baka

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Kalpesh Patel MD

    VICE CHIEF OF STAFF/DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Luis Perez END 923

    DIRECTOR

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

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Maryanne Locklin END 923

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Maureen Strobl

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Michael Smith START 1023

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Patrick Carmody

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Richard Edelman

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Ronald Hem

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Santosh Gill MD

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Susana Rivera-Mills PhD START 1023

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Syed Zaidi MD

    IMMEDIATE PAST CHIEF OF STAFF/DIRECTOR

    Total calculated
    $824,472
    From this org
    $797,922
    From related orgs
    $0
    Other
    $26,550
    Hours/week
    40 + 2 related

    Schedule J breakdown matched by us

    Base
    $583,609
    Bonus
    $202,409
    Other
    $11,904
    Deferred
    $8,250
    Nontaxable benefits
    $18,300
    Filer's total
    $824,472
  • Brenda Van Wyhe

    SR. VP FINANCE & CFO/TREASURER

    Total calculated
    $1,464,830
    From this org
    $1,430,687
    From related orgs
    $0
    Other
    $34,143
    Hours/week
    40 + 3 related

    Schedule J breakdown matched by us

    Base
    $462,292
    Bonus
    $105,005
    Other
    $863,390
    Deferred
    $11,250
    Nontaxable benefits
    $22,893
    Filer's total
    $1,464,830
  • Ryan Asmus END 0224

    VP GENERAL COUNSEL/SECRETARY

    Total calculated
    $974,642
    From this org
    $430,209
    From related orgs
    $0
    Other
    $544,433
    Hours/week
    40 + 3 related

    Schedule J breakdown matched by us

    Base
    $355,696
    Bonus
    $69,012
    Other
    $5,501
    Deferred
    $544,433
    Nontaxable benefits
    $0
    Filer's total
    $974,642
  • Abigail Hornbogen

    VP. PATIENT CARE & CNO

    Total calculated
    $398,682
    From this org
    $326,704
    From related orgs
    $0
    Other
    $71,978
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $269,659
    Bonus
    $54,107
    Other
    $2,938
    Deferred
    $42,162
    Nontaxable benefits
    $29,816
    Filer's total
    $398,682

The first 25 listed. 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

  • 2023
    Revenue
    $458,039,278
    Expenses
    $407,943,196
    Contributions
    $11,082,222
    Grants paid
    $0
  • 2022
    Revenue
    $399,173,514
    Expenses
    $371,172,325
    Contributions
    $5,006,880
    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.

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

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 2023 return

Declared as related by

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.