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Nonprofit · EIN 36-3409105

AMERICAN OSLER SOCIETY

Tax-exempt · S PASADENA, CA 91030

Financials

$293K$197K2023$268K$280K2024
Revenue Expenses · by fiscal year end
Financials of AMERICAN OSLER SOCIETY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2024990$267,881$280,282-$12,401$877,337$0$877,337
December 31, 2023990$293,363$196,777$96,586$940,182$0$940,182
Financial details: 990 for the year ended December 31, 2024

Revenue

Contributions, gifts and grants
$59,950
Membership dues
$29,800
Program service revenue
$69,169
Investment income
$138,762
Net gain from sales of assets
$109,600
Other revenue
$0

Expenses

Grants and similar amounts paid
$29,556
Other salaries and wages
$32,500
Salaries, compensation and benefits (total)
$33,621
Professional fundraising fees
$0
Travel
$9,556
Program services (functional)
$199,373
Management and general (functional)
$80,909

Balance sheet and other

Total assets, start of year
$940,182
Total assets, end of year
$877,337
Total liabilities, end of year
$0
Net assets, end of year
$877,337
Publicly traded securities
$870,093
Net assets without donor restrictions
$772,303
Net assets with donor restrictions
$105,034
Gross receipts
$1,349,978
Employees
1
Volunteers
0
Year formed
1977
State of legal domicile
MN

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2024, highest compensation first.

NameTitleHours / weekCompensation
CHRISTOPHER BOESBOARD OF GOV
Trustee or director
0$0
CHRIS CRENNERBOARD OF GOV
Trustee or director
0$0
PRIYA DAVEBOARD OF GOV
Trustee or director
0$0
ROLANDO DEL MAESTROBOARD OF GOV
Trustee or director
0$0
MATTHEW EDWARDSBOARD OF GOV
Trustee or director
0$0
MARIA GABY FRANKSECRETARY
Trustee or director, Officer
0$0
TEE GUIDOTTIBOARD OF GOV
Trustee or director
0$0
JOHN SKIP HARRIS JRFIRST VICE PRES
Trustee or director, Officer
0$0
BRUCE HOEKSTRABOARD OF GOV
Trustee or director
0$0
MIKE H MALLOYEDITOR, OSLERIAN
Trustee or director, Officer
0$0
ANDREW T NADELLTREASURER
Trustee or director, Officer
0$0
KATIE LAEL KINCERA RAYBOARD OF GOV
Trustee or director
0$0
JOAN RICHARDSONBOARD OF GOV
Trustee or director
0$0
BRENDAN ROSSBOARD OF GOV
Trustee or director
0$0
HERBERT M SWICKHISTORIAN
Trustee or director, Officer
0$0
7 more people on this return
NameTitleHours / weekCompensation
HENRY PETE TRAVERSBOARD OF GOV
Trustee or director
0$0
MIKE TROTTERBOARD OF GOV
Trustee or director
0$0
ALICE RHOTON-VLASAKBOARD OF GOV
Trustee or director
0$0
LEONARD WANGBOARD OF GOV
Trustee or director
0$0
DAVID J WOLFSECOND VICE PRES
Trustee or director, Officer
0$0
JAMES R WRIGHTPRESIDENT
Trustee or director, Officer
0$0
MARY HAGUE-YEARLBOARD OF GOV
Trustee or director
0$0
990 for the year ended December 31, 2023: 21 people
NameTitleHours / weekCompensation
CHRISTOPHER J BOESBOARD OF GOA
Trustee or director
–$0
PRIYA DAVEBOARD OF GOV
Trustee or director
–$0
MATTHEW EDWARDSBOARD OF GOV
Trustee or director
–$0
M GABY FRANKSECRETARY
Trustee or director, Officer
–$0
TEE GUIDOTTIBOARD OF GOV
Trustee or director
–$0
BRUCE A HOEKSTRABOARD OF GOV
Trustee or director
–$0
JAMES R WRIGLEY JRFIRST VICE P
Trustee or director, Officer
–$0
JOHN SKIP HARRIS JRSECOND VICE
Trustee or director, Officer
–$0
J SUSAN KELENBOARD OF GOV
Trustee or director
–$0
ROLANDO DEL MAESTROBOARD OF GOV
Trustee or director
–$0
ROBERT G MENNELBOARD OF GOV
Trustee or director, Officer
–$0
MICHAEL H MOLLORYEDITOR, OSLE
Trustee or director, Officer
–$0
ANDREW T NADELLTREASURER
Trustee or director, Officer
–$0
SUTCHIN PATELBOARD OF GOV
Trustee or director
–$0
ALICE RHOTON-VLASAKBOARD OF GOV
Trustee or director
–$0
C JOAN RICHARDSONPRESIDENT
Trustee or director, Officer
–$0
MICHAEL PH STANLEYBOARD OF GOV
Trustee or director
–$0
ROB STONEDIGITAL ARCH
Trustee or director, Officer
–$0
HERBERT M SWICKHISTORIAN
Trustee or director, Officer
–$0
LEONARD WANGBOARD OF GOV
Trustee or director
–$0
DAVID J WOLFBOARD OF GOV
Trustee or director
–$0

Address and contacts

Address (IRS master file)
1311 CHELTEN WAY, S PASADENA, CA 91030-3911
In care of
% RD BASTRON
Principal officer (990 for 2024)
ANDREW NADELL
Signed the 990
ANDREW NADELL, TREASURER
Phone
(626) 346-1670
Return prepared by
FILLMORE GROUP LLP

California records

California keeps its own records of charities and corporations. Search them by EIN 36-3409105 or by the name AMERICAN OSLER SOCIETY.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

Mission

TO PROMOTE EDUCATION IN THE HUMANISM OF MEDICINE, THE HUMANITIES RELATED TO MEDICINE AND THE HISTORY OF MEDICINE AS EXEMPLIFIED BY THE LIFE OF WILLIAM OSLER.

990 for the year ended December 31, 2024

Program accomplishments

  • PROMOTION OF MEDICAL HISTORY AND HUMANISM RELATED TO MEDICINE THROUGH SCHOLARSHIP AND EDUCATION.
    Expenses $199,373 · grants $29,556 · revenue $69,169

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026Not on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
36-3409105
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1985
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$877,337
Income (IRS master file)
$1,349,978

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2024$267,881$280,282$877,337IRS
990December 2023$293,363$196,777$940,182XML
990December 2022$145,272$280,250$843,596IRS
990December 2021–––IRS
990December 2020–––IRS
990December 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 36-3409105).

Questions about AMERICAN OSLER SOCIETY

What is the EIN of AMERICAN OSLER SOCIETY?
The employer identification number (EIN) of AMERICAN OSLER SOCIETY is 36-3409105.
Is AMERICAN OSLER SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1985.
Are donations to AMERICAN OSLER SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does AMERICAN OSLER SOCIETY file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of AMERICAN OSLER SOCIETY due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did AMERICAN OSLER SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2024.
Who is the principal officer of AMERICAN OSLER SOCIETY?
The 990 for the year ended December 31, 2024 names ANDREW NADELL.
Who are the officers and directors of AMERICAN OSLER SOCIETY?
The 990 for the year ended December 31, 2024 lists 22 people; 0 received compensation from the organization.
How much revenue does AMERICAN OSLER SOCIETY have?
On its 990 for the year ended December 31, 2024 it reported revenue of $267,881, expenses of $280,282 and total assets of $877,337 at year end.

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