Stony Brook Surgical Associates University Faculty Practice Corp
Donations deductibleRevenue
$70.1m
year to 30 June 2025
Expenses
$69.8m
year to 30 June 2025
Total assets
$4.8m
$4.8m liabilities
Net assets
$0
assets less liabilities
Directors and trustees
3
7.4 years on average
Staff
120
employees, year to 30 June 2025
Left since last filing
0
no seats appear to have opened
Officers and senior staff
9
named in Part VII
Stony Brook Surgical Associates University Faculty Practice Corp's network
3 people2 organisationsi3 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (3). Violet dotted lines (2) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.The board
3 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 3 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Alexander Dagum | Director/Secretary/Treasurer | 2018 | 8 yrs |
| Apostolos Tassiopoulos | President & Director | 2021 | 5 yrs |
| Aurora Pryor | Director & Surgeon | 2018 | 8 yrs |
Under 5 years5 to 6 years6 years or more
Officers and senior leadership
9 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.| Name | Title as filed | On the filings |
|---|---|---|
| Antonios Gasparis | Surgeon | since 2018 |
| Aaron Sasson | Surgeon | since 2020 |
| Apostolos Tassiopoulos | Surgeon | since 2019 |
| Christopher Muratore | Surgeon | 2021 |
| Henry Tannous | Surgeon | since 2018 |
| James Vosswinkel | Surgeon | since 2018 |
| Joanna Chikwe | Surgeon | since 2018 |
| Sami Khan | Surgeon | 2022 |
| Vinay TAK | Surgeon | 2018 |
Pay and hours
year to 30 June 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Apostolos Tassiopoulos | President & Director | 40 | $1.5m | $360k | $111k |
| Sami Khan | Surgeon | 40 | $1.3m | $92k | $77k |
| Tara Huston | Surgeon | 40 | $1.3m | $94k | $65k |
| Henry Tannous | Surgeon | 40 | $1.2m | $65k | |
| Duc Bui | Surgeon | 40 | $1.2m | $65k | |
| Konstantinos Spaniolas | Director/Secretary/Treasurer | 40 | $904k | $93k | $75k |
| James Vosswinkel | Surgeon | 40 | $756k | $316k | $105k |
| Aaron Sasson | Director | 40 | $756k | $142k | $80k |
| Alexander Dagum | Director/Secretary/Treasurer (Till 8/12/24) | 0 | $728k | $52k |
About
- Legal name
- Stony Brook Surgical Associates University Faculty Practice Corp
- EIN
- 112552333
- Address
- Po Box 1554, Stony Brook, NY, 11790-0988
- State
- New York
- Mission
- Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services. (as filed on the Form 990)
- Activity (NTEE)
- E20 Health care
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Health Care
- Size band
- 6 (IRS master file code)
- Formed
- 1981
- IRS ruling date
- 1 February 2008
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 5, latest 2022
- IRS Publication 78
- PC (contributions deductible)
Most connected
Related organisations (Schedule R)
RelatedHEALTHCARETony Brook Anaesthesiology UfpcRelatedHEALTHCAREStony Brook Dermatology Associates UfpcRelatedRLTY HOLDINGStony Brook Clin Pract Mgmt Realty CorpRelatedRLTY HOLDINGStony Brook Surgical Holding Corp
Longest observed on the filings
≥8years on the filingsAlexander Dagum
≥8years on the filingsAurora Pryor
≥5years on the filingsApostolos Tassiopoulos
Latest return
year to 30 June 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 June 2025. US dollars, as filed.- Total assets
- $4.8m
- Total liabilities
- $4.8m
- Net assets or fund balances
- $0
- Contributions and grants received
- $0
- Program service revenue
- $70m
- Employees
- 120
State registration
1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.Stony Brook Surgical Associates, University Faculty Practice Corporation likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: New York Department of State, active corporations (data.ny.gov n9v6-gdp6). Licence: New York open data terms of use. Data last fetched 18 October 2026.
- State
- New York
- Entity type
- Domestic Professional Service Corporation
- Status
- Active
- Formed
- 9 January 1981
- Registered agent
- Not stated