Skip to content
Nonprofiteer
← All organizations

ORTHOPAEDIC FOOT & ANKLE FOUNDATION

EIN 30-0234329 SCHAUMBURG, IL

Revenue 2024
$1,701,279
Expenses 2024
$1,911,733

Program services were 92.3% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
H12
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).

Other organizations at this address

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

This address is a suite or unit (STE 850). Organizations that share one are often clients of the same office-services firm, accountant or registered agent rather than related to each other.

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

TO ACTIVELY ADVANCE THE AMERICAN ORTHOPAEDIC FOOT & ANKLE SOCIETY "AOFAS" MISSION BY PROMOTING AND FUNDING EDUCATION, RESEARCH, SOCIAL IMPACT, AND HUMANITARIAN ENDEAVORS.

Activities or mission (Part I)

TO ACTIVELY ADVANCE THE AMERICAN ORTHOPAEDIC FOOT & ANKLE SOCIETY MISSION.

  • SUPPORT RESEARCH AND EDUCATIONAL ACTIVITIES RELATED TO MEDICAL CARE OF THE FOOT AND ANKLE.

    Expenses $1,764,546 · Grants $1,734,294

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.

  • Macalus Hogan MD

    PRESIDENT

    Total calculated
    $0
    Hours/week
    1
  • Joseph S Park MD

    PRESIDENT-ELECT

    Total calculated
    $0
    Hours/week
    1
  • Sheldon S Lin MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1 + 2 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
  • Scott Ellis MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • David Thordarson MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1 + 2 related
  • Johnathon Backus MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1
  • Constatine Demetracopoulos MD

    MEMBER-AT-LARGE

    Total calculated
    $0
    Hours/week
    1
  • Peter Mangone MD

    PRESIDENT, THROUGH SEPT 2024

    Total calculated
    $0
    Hours/week
    1
  • Michael Aronow MD

    MEMBER AT LARGE, THROUGH SEPT 2024

    Total calculated
    $0
    Hours/week
    1 + 1 related
  • J Kent Ellington MD

    MEMBER AT LARGE, THROUGH SEPT 2024

    Total calculated
    $0
    Hours/week
    1
  • Elaine Larkin-Leighton

    EXECUTIVE DIRECTOR

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

    Schedule J breakdown matched by us

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

    DEVELOPMENT SENIOR MGR

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

    Schedule J breakdown matched by us

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

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
    $1,701,279
    Expenses
    $1,911,733
    Contributions
    $1,507,199
    Grants paid
    $1,734,294
  • 2023
    Revenue
    $1,865,139
    Expenses
    $1,722,729
    Contributions
    $1,634,009
    Grants paid
    $1,574,335
  • 2022
    Revenue
    $1,640,128
    Expenses
    $1,312,099
    Contributions
    $1,417,646
    Grants paid
    $1,181,803

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

  • 2021 · 990

    Revenue
    $1,439,579
    Expenses
    $966,869
    Assets (EOY)
    $10,882,425
  • 2020 · 990

    Revenue
    $976,931
    Expenses
    $941,875
    Assets (EOY)
    $9,241,790
  • 2019 · 990

    Revenue
    $2,155,085
    Expenses
    $1,423,161
    Assets (EOY)
    $8,113,022
  • 2018 · 990

    Revenue
    $4,175,407
    Expenses
    $1,073,311
    Assets (EOY)
    $6,779,382
  • 2016 · 990

    Revenue
    $787,687
    Expenses
    $1,108,641
    Assets (EOY)
    $4,698,926
  • 2015 · 990

    Revenue
    $1,152,567
    Expenses
    $810,647
    Assets (EOY)
    $3,921,699
  • 2014 · 990

    Revenue
    $956,023
    Expenses
    $719,263
    Assets (EOY)
    $3,287,154
  • 2012 · 990

    Revenue
    not reported
    Expenses
    $425,166
    Assets (EOY)
    $3,125,849
  • 2011 · 990

    Revenue
    not reported
    Expenses
    $419,529
    Assets (EOY)
    $2,842,016

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.

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

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 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 29 October 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.