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AMERICAN ORTHOPAEDIC FOOT & ANKLE SOCIETY

EIN 23-7087029 SCHAUMBURG, IL

Revenue 2024
$6,618,476
Expenses 2024
$6,644,108

Program services were 76.3% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
E03
Classification
1200
Street
1515 E WOODFIELD RD STE 850

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.

  • DAVID THORDARSON MD

    PRESIDENT

    Total calculated
    $0
    Hours/week
    2 + 1 related

  • SHELDON S LIN MD

    PRESIDENT-ELECT

    Total calculated
    $0
    Hours/week
    2 + 1 related

  • SCOTT ELLIS MD

    VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    2 + 1 related

  • CASEY HUMBYRD MD

    TREASURER

    Total calculated
    $0
    Hours/week
    2 + 2 related

  • CHRISTOPHER CHIODO MD

    SECRETARY

    Total calculated
    $0
    Hours/week
    2 + 2 related

  • MICHAEL ARONOW MD

    IMMEDIATE PAST PRESIDENT

    Total calculated
    $0
    Hours/week
    1

  • BRYAN DEN HARTOG MD

    IMMEDIATE PAST PRESIDENT THROUGH SEPT 2024

    Total calculated
    $0
    Hours/week
    1

  • ERROLL BAILEY MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1

  • JEANNIE HUH MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1

  • DANIEL GUSS MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1

  • PAMELA LUK MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1

  • JASON BARITEAU MD

    MEMBER AT LARGE

    Total calculated
    $0
    Hours/week
    1

  • KELLY HYNES MD

    MEMBER AT LARGE

    Total calculated
    $0
    Hours/week
    1

  • ANISH KADKIA MD

    MEMBER AT LARGE

    Total calculated
    $0
    Hours/week
    1

  • J TURNER VOSSELLER MD

    MEMBER AT LARGE

    Total calculated
    $0
    Hours/week
    1

  • ELAINE LARKIN-LEIGHTON

    EXECUTIVE DIRECTOR

    Total calculated
    $469,766
    From this org
    $429,483
    From related orgs
    $0
    Other
    $40,283
    Hours/week
    45 + 5 related

    Schedule J breakdown matched by us

    Base
    $429,483
    Bonus
    $0
    Other
    $0
    Deferred
    $30,500
    Nontaxable benefits
    $9,783
    Filer's total
    $469,766

  • CATHERINE POWERS

    DEVELOPMENT SENIOR MGR

    Total calculated
    $169,111
    From this org
    $135,372
    From related orgs
    $0
    Other
    $33,739
    Hours/week
    1 + 39 related

    Schedule J breakdown matched by us

    Base
    $135,372
    Bonus
    $0
    Other
    $0
    Deferred
    $21,022
    Nontaxable benefits
    $12,717
    Filer's total
    $169,111

  • ALENA FREY

    DIRECTOR OF EDUCATION & ME

    Total calculated
    $143,991
    From this org
    $140,785
    From related orgs
    $0
    Other
    $3,206
    Hours/week
    40

  • JESSICA DORNFELD

    DIRECTOR OF MARKETING & ME

    Total calculated
    $168,830
    From this org
    $129,446
    From related orgs
    $0
    Other
    $39,384
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $129,446
    Bonus
    $0
    Other
    $0
    Deferred
    $19,422
    Nontaxable benefits
    $19,962
    Filer's total
    $168,830

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
    $6,618,476
    Expenses
    $6,644,108
    Contributions
    $2,106,494
    Grants paid
    $881,013
  • 2023
    Revenue
    $6,406,596
    Expenses
    $6,310,616
    Contributions
    $2,073,485
    Grants paid
    $941,034
  • 2022
    Revenue
    $5,912,169
    Expenses
    $5,723,835
    Contributions
    $1,826,590
    Grants paid
    $892,091

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

Nonprofiteer parses the Form 990 only. 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.

Grants made

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

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

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.