American Otological Society Research Foundation

Public charity · Grantmaker St Petersburg, FL EIN: 20-5095702

Continue the improvement of patient care by the advancement of physician knowledge of otology through research.

American Otological Society Research Foundation at a glance

In short: American Otological Society Research Foundation gave $499K across 9 grants in 2025 (avg $55K), top state Florida. Source: 2025 IRS Form 990.

Annual giving (2025)
$499,000
+20.0% vs 2024
Grants made (2025)
9
-18.2% vs 2024
Average grant
$55,444
+46.7% vs 2024
Median grant
$44,000
Total assets
$13,688,930
+4.9% vs 2024
Primary geography
Florida (20% of itemized 2025 grant dollars)
Latest 990 filing
Form 990, 2025 View filing

Data from IRS Form 990, 2025; updated September 2026.

Who American Otological Society Research Foundation funds

How this funder distributes its grants

Top Recipients

Top 9 recipients in 2025

American Otological Society Inc: $100KAmerican Otological SocietyInc$100KUniversity of Iowa: $80KUniversity of Iowa$80KUniversity of Michigan: $55KUniversity of Michigan$55KJohns Hopkins University: $55KJohns Hopkins University$55KIndiana University: $44KIndiana University$44KUniversity of Virginia: $44KUniversity of Virginia$44KBoston Children's Hospital: $44KBoston Children's Hospital$44KUniversity of Kentucky: $44KUniversity of Kentucky$44KWashington University in St Louis: $33KWashington University in StLouis$33K

The largest 2025 recipient was American Otological Society Inc ($100K). Together the top 9 received $499K.

Grant Size Distribution

40 grants across all recorded years

23<$50K16$50–100K1$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 23 grants of 40 (57%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

20states

Share of 2025 grant dollars across all 9 itemized grants.

Cities

Los AngelesBostonIowa CityChicagoBaltimoreJacksonSeattleSalt Lake CitySan FranciscoAnn ArborBloomingtonCambridgeCharlottesvilleClevelandCollege StationCoral GablesDenverLexingtonMadisonNew York

How American Otological Society Research Foundation gives

  • Giving grew 37% from 2022 to 2025. Method

From the foundation's IRS Form 990 filings. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$200K$400K$600K6 grants2019 7 grants2020 7 grants2021 7 grants2022 6 grants2023 11 grants2024 9 grants2025

From 2019 to 2025, annual grant giving ranged from $304K (2019) to $499K (2025). In 2025 it made 9 grants totaling $499K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
American Otological Society Inc St Petersburg, FLAdvance and Promote Medical and Surgical Otology Neurotology$100,000
University of Iowa Iowa City, IALifetime of the tip link in living hair cells$80,000
University of Michigan Ann Arbor, MIThe impact of single-sided deafness on behavioral compensation and binaural cues during complex localization and speech-in-noise tasks$55,000
Johns Hopkins University Baltimore, MDIdentification of biomarkers in human plasma for diagnosis of vestibular migraine$55,000
Indiana University Bloomington, INAnyway you splice it: exonic splice-altering variants and otof-related hearing loss$44,000
University of Virginia Charlottesville, VAThe role of post-translational modifications of pcdh15 in hair bundle morphogenesis and function$44,000
Boston Children's Hospital Boston, MAGenetic Models of Synaptopathy Suggest Novel Therapeutic Approaches$44,000
University of Kentucky Lexington, KYMolecular mechanisms regulating activation of mechano-electrical transducer channels in mammalian auditory hair cells$44,000
Washington University in St Louis St. Louis, MORevealing molecular and cellular drivers of cholesteatoma pathogenesis in children using single-cell rna sequencing$33,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsNet Investment Income
2025$13,688,930$795,842$618,386$499,0009$785,620
2024$13,053,562$868,754$522,889$415,75011$859,416
2023$12,050,072$670,921$420,474$330,0006$663,758
2022$11,347,474$1,480,303$444,671$363,0007$1,441,266
2021$13,191,978$919,211$415,403$351,0007$919,211
2020$10,890,437$706,229$473,307$399,0007$706,229
2019$11,012,811$772,316$373,757$303,9216$722,316

About American Otological Society Research Foundation

Based on IRS filings

American Otological Society Research Foundation is a public charity focused on Diseases, Disorders & Medical Disciplines, based in St Petersburg, FL. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $13.7M in total assets. In 2025, it awarded 9 grants totaling $499K. Net investment income was $786K.

Leadership & Key People

Officers and directors from IRS filings

American Otological Society Research Foundation is led by William H. Slattery III MD, President since 2025 (on filings since 2020); none of the 8 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • William H. Slattery III MD

    President

    Council Member → President - Elect, 2024

    President - Elect → President, 2025

    On filings since 2020

    2 hrs/week

    No compensation reported

  • Lawrence R. Lustig MD

    Past President

    President → Immediate Past President, 2024

    Immediate Past President → Past President, 2025

    On filings since 2019

    1 hr/week

    No compensation reported

  • Sujana S. Chandrasekhar MD

    Immediate Past President

    President - Elect → President, 2024

    President → Immediate Past President, 2025

    On filings since 2019

    1 hr/week

    No compensation reported

  • Nancy M. Young MD

    President-Elect

    Education-Director → Education Director, 2022

    Education Director → President-Elect, 2025

    On filings since 2021

    2 hrs/week

    No compensation reported

  • David R. Friedland MD PhD

    Secretary-Treasurer

    Secratary Treasurer → Secretary-Treasurer, 2025

    On filings since 2023

    4 hrs/week

    No compensation reported

  • Dennis S. Poe MD PhD

    Council Member

    On filings since 2024

    1 hr/week

    No compensation reported

  • Bradley W. Kesser MD

    Education Director-Elect

    New on the 2025 filing

    1 hr/week

    No compensation reported

  • Nikolas H. Blevins MD

    Council Member

    New on the 2025 filing

    1 hr/week

    No compensation reported

Former officers (7)
  • Former: Marlan R. Hansen MD (2019–2024) — Past President
  • Former: Nikolas Hblevinsmd (2022–2024) — Council Member
  • Former: Patrick J. Antonelli MD (2019–2023) — Past President
  • Former: John P. Carey MD (2019–2022) — Past President
  • Former: Carol A. Bauer MD (2019–2021) — Past President
  • Former: Roberto A. Cueva MD (2019–2020) — Past President
  • Former: Samuel H. Selesnick MD (2019) — Past President

Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about American Otological Society Research Foundation

How much does American Otological Society Research Foundation give each year?

American Otological Society Research Foundation gave $499K across 9 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $416K across 11 grants.

What is American Otological Society Research Foundation's typical grant size?

American Otological Society Research Foundation's median grant in 2025 was $44,000, and its average grant was $55,444, across 9 grants on its 2025 IRS Form 990.

Where does American Otological Society Research Foundation give grants?

American Otological Society Research Foundation's top state is Florida, with 20% of the grant dollars itemized on its 2025 IRS Form 990. The next largest states were Iowa (16%) and Michigan (11%).

Does American Otological Society Research Foundation give general operating support?

Not in 2025: none of the 9 grants with a stated purpose on American Otological Society Research Foundation's 2025 IRS Form 990 were described as general or operating support.

Who are American Otological Society Research Foundation's largest grantees?

American Otological Society Research Foundation's largest 2025 grantees include American Otological Society Inc ($100,000), University of Iowa ($80,000) and University of Michigan ($55,000), according to its 2025 IRS Form 990. Together they received 47% of its itemized 2025 grant dollars.

How large is American Otological Society Research Foundation?

American Otological Society Research Foundation reported $13.7M in total assets on its 2025 IRS Form 990. Its revenue that year was $796K.

What is American Otological Society Research Foundation?

American Otological Society Research Foundation is a public charity focused on Diseases, Disorders & Medical Disciplines, based in St Petersburg, FL. It holds $13.7M in total assets as of 2025.

What is American Otological Society Research Foundation's EIN?

American Otological Society Research Foundation's EIN (Employer Identification Number) is 20-5095702. IRS Form 990 filing data is available on this page for 2019–2025.

Data last updated September 2026. Sourced from IRS Form 990 filings.

Data update history

(8)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990 for fiscal year 2019 (received by the IRS May 20, 2020)
  2. Updated Form 990 for fiscal year 2020 (received by the IRS May 13, 2021)
  3. Updated Form 990 for fiscal year 2021 (received by the IRS March 11, 2022)
  4. Updated Form 990 for fiscal year 2022 (received by the IRS May 2, 2023)
  5. Updated Form 990 for fiscal year 2023 (received by the IRS May 13, 2024)
  6. Updated Form 990 for fiscal year 2024 (received by the IRS May 2, 2025)
  7. Updated Form 990 for fiscal year 2025 (received by the IRS April 12, 2026)
  8. IRS filings on file for fiscal years 2019–2025

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