Nonprofit · EIN 26-1394760
ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC
Tax-exempt · GREENWICH, CT 06831
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $458,221 | $317,879 | $140,342 | $1,916,827 | $0 | $1,916,827 |
| December 31, 2024 | 990 | $582,486 | $295,743 | $286,743 | $1,775,784 | $0 | $1,775,784 |
| December 31, 2023 | 990 | $298,056 | $251,186 | $46,870 | $1,461,257 | $27,751 | $1,433,506 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $83,144
- Program service revenue
- $0
- Investment income
- $207,690
- Net income from fundraising events
- $167,387
- Other revenue
- $167,387
Expenses
- Grants and similar amounts paid
- $0
- Other salaries and wages
- $17,542
- Salaries, compensation and benefits (total)
- $21,092
- Professional fundraising fees
- $0
- Accounting fees
- $11,250
- Occupancy
- $23,833
- Program services (functional)
- $317,879
Balance sheet and other
- Total assets, start of year
- $1,775,784
- Total assets, end of year
- $1,916,827
- Total liabilities, end of year
- $0
- Net assets, end of year
- $1,916,827
- Publicly traded securities
- $1,505,208
- Net assets without donor restrictions
- $1,916,827
- Gross receipts
- $597,044
- Employees
- 1
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, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PAUL SETHI MD | PRESIDENT Trustee or director | – | $0 |
| VICKI LEEDS TANANBAUM | VICE PRESIDE Trustee or director | – | $0 |
| DAVID HIRSCH | TREASURER Trustee or director | – | $0 |
| ADAM ERCOLI | DIRECTOR Trustee or director | – | $0 |
| RICH GRANOFF | DIRECTOR Trustee or director | – | $0 |
| JEFF KONIGSBERG | DIRECTOR Trustee or director | – | $0 |
| ANGELA TAMMARO | DIRECTOR Trustee or director | – | $0 |
| PAUL E TRAMONTANO | DIRECTOR Trustee or director | – | $0 |
| MARK VITALE MD | DIRECTOR Trustee or director | – | $0 |
| JOANNA SCHULMAN | DIRECTOR Trustee or director | – | $0 |
| JEFFREY MENDELL | DIRECTOR Trustee or director | – | $0 |
| MARC KOWALSKY MD | DIRECTOR Trustee or director | – | $0 |
| DAVID MAZZULLO | DIRECTOR Trustee or director | – | $0 |
| KATIE VADASDI MD | DIRECTOR Trustee or director | – | $0 |
| PHILLIPP VILLHAUER | DIRECTOR Trustee or director | – | $0 |
990 for the year ended December 31, 2024: 17 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PAUL SETHI MD | PRESIDENT Trustee or director | – | $0 |
| VICKI LEEDS TANANBAUM | VICE PRESIDE Trustee or director | – | $0 |
| DAVID HIRSCH | TREASURER Trustee or director | – | $0 |
| KATHERINE VADASDI MD | SECRETARY Trustee or director | – | $0 |
| ADAM ERCOLI | DIRECTOR Trustee or director | – | $0 |
| AMORY FIORE MD | DIRECTOR Trustee or director | – | $0 |
| RICH GRANOFF | DIRECTOR Trustee or director | – | $0 |
| JEFF KONIGSBERG | DIRECTOR Trustee or director | – | $0 |
| JOSEPH MCKEE | DIRECTOR Trustee or director | – | $0 |
| ANGELA TAMMARO | DIRECTOR Trustee or director | – | $0 |
| PAUL E TRAMONTANO | DIRECTOR Trustee or director | – | $0 |
| MARK VITALE MD | DIRECTOR Trustee or director | – | $0 |
| JOANNA SCHULMAN | DIRECTOR Trustee or director | – | $0 |
| JEFFREY MENDELL | DIRECTOR Trustee or director | – | $0 |
| DIANE KELLY | DIRECTOR Trustee or director | – | $0 |
| PHILIPP VILLHAUER | DIRECTOR Trustee or director | – | $0 |
| MARK KOWALSKY MD | DIRECTOR Trustee or director | – | $0 |
990 for the year ended December 31, 2023: 17 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PAUL SETHI MD | PRESIDENT Trustee or director | – | $0 |
| VICKI LEEDS TANANBAUM | VICE PRESIDE Trustee or director | – | $0 |
| DAVID HIRSCH | TREASURER Trustee or director | – | $0 |
| KATHERINE VADASDI MD | SECRETARY Trustee or director | – | $0 |
| ADAM ERCOLI | DIRECTOR Trustee or director | – | $0 |
| AMORY FIORE MD | DIRECTOR Trustee or director | – | $0 |
| RICH GRANOFF | DIRECTOR Trustee or director | – | $0 |
| JEFF KONIGSBERG | DIRECTOR Trustee or director | – | $0 |
| JOSEPH MCKEE | DIRECTOR Trustee or director | – | $0 |
| ANGELA TAMMARO | DIRECTOR Trustee or director | – | $0 |
| PAUL E TRAMONTANO | DIRECTOR Trustee or director | – | $0 |
| MARK VITALE MD | DIRECTOR Trustee or director | – | $0 |
| JOANNA SCHULMAN | DIRECTOR Trustee or director | – | $0 |
| JEFFREY MENDELL | DIRECTOR Trustee or director | – | $0 |
| DIANE KELLY | DIRECTOR Trustee or director | – | $0 |
| PHILIPP VILLHAUER | DIRECTOR Trustee or director | – | $0 |
| MARK KOWALSKY MD | DIRECTOR Trustee or director | – | $0 |
Address and contacts
- Address (IRS master file)
- 6 GREENWICH OFFICE PARK SUITE 100, GREENWICH, CT 06831-5115
- Principal officer (990 for 2025)
- PAUL SETHI MD, 30 DAWN HARBOR LANE, RIVERSIDE, CT 06878
- Signed the 990
- PAUL SETHI MD, PRESIDENT
- Phone
- (203) 869-3131
- Website
- WWW.ONSF.ORG
- Return prepared by
- GREEN COAST ADVISORS
Mission
THE ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION, IN ALLIANCE WITH GREENWICH HOSPITAL, WILL STRIVE TO IMPROVE STANDARDS OF EXCELLENCE FOR THE TREATMENT OF MUSCULOSKELETAL DISORDERS THROUGH CLINICAL RESEARCH, PHYSICIAN AND PATIENT EDUCATION, AND COMMUNITY OUTREACH PROGRAMS.
Program accomplishments
- THE ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION, IN ALLIANCE WITH GREENWICH HOSPITAL, WILL STRIVE TO IMPROVE STANDARDS OF EXCELLENCE FOR THE TREATMENT OF MUSCULOSKELETAL DISORDERS THROUGH CLINICAL RESEARCH, PHYSICIAN AND PATIENT EDUCATION, AND COMMUNITY OUTREACH PROGRAMS.Expenses $317,879
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 year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 26-1394760
- 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
- 2008
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Health care (E12)
- Assets (IRS master file)
- $1,916,827
- Income (IRS master file)
- $597,044
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $458,221 | $317,879 | $1,916,827 | IRS |
| 990 | December 2024 | $582,486 | $295,743 | $1,775,784 | IRS |
| 990 | December 2023 | $298,056 | $251,186 | $1,461,257 | XML |
| 990 | December 2022 | $318,591 | $243,442 | $1,415,679 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | 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 26-1394760).
Questions about ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC
- What is the EIN of ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC?
- The employer identification number (EIN) of ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC is 26-1394760.
- Is ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2008.
- Are donations to ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC 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 ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC?
- The 990 for the year ended December 31, 2025 names PAUL SETHI MD.
- Who are the officers and directors of ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC?
- The 990 for the year ended December 31, 2025 lists 15 people; 0 received compensation from the organization.
- How much revenue does ONS FOUNDATION FOR CLINICAL RESEARCH AND EDUCATION INC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $458,221, expenses of $317,879 and total assets of $1,916,827 at year end.
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