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Governance Register
US nonprofit · EIN 362182052 · Chicago, ILiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 362182052) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2024: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

International College of Surgeons United States Section's network

7 people1 organisationi7 people and 1 organisation on this map.The large node is the subject of this page. Solid lines are what the register itself records (7). Violet dotted lines (3) 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

7 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 7 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Saptarshi Biswas MD ChairChair2024
2 yrs
Steven Dominguez MD ChairChair2024
2 yrs
Dixon Santana MDPast Preside2018
8 yrs
Joshua MV Mammen MDTreasurer2023
3 yrs
Mayur Narayan MDCompany secretary2023
3 yrs
Nazir Sharique MDPresident El2023
3 yrs
Sivamainthan VithiananthanPresident2023
3 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

1 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Nick RebelExec. Dir.since 2018

Pay and hours

year to 31 December 2024iFrom 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.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Nick RebelExec. Dir.40$101k
Sivamainthan VithiananthanPresident1$0
Nazir Sharique MDPresident El1$0
Dixon Santana MDPast Preside1$0
Joshua Mv Mammen MDTreasurer1$0
Mayur Narayan MDSecretary1$0
Saptarshi Biswas MDChair1$0
Steven Dominguez MDChair1$0

About

Legal name
International College of Surgeons United States Section
EIN
362182052
Address
1524 N Lake Shore Dr, Chicago, IL, 60610-6684
State
Illinois
Mission
Advancement & teaching of the art & science of surgery (as filed on the Form 990)
Activity (NTEE)
Q033 International, foreign affairs and national security
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
International, Foreign Affairs & National Security
Size band
6 (IRS master file code)
Formed
1935
Principal officer
Nick Rebel (as named on the Form 990)
IRS ruling date
1 October 1949
Status
Code 01 (unconditional exemption)
Form 990 filings on record
6, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsDixon Santana MD
≥3years on the filingsJoshua MV Mammen MD
≥3years on the filingsMayur Narayan MD
≥3years on the filingsNazir Sharique MD

Latest return

year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.
Total assets
$2.5m
Total liabilities
$90k
Net assets or fund balances
$2.5m
Contributions and grants received
$138k
Program service revenue
$133k
Employees
2
Volunteers
70

Filed finances

2 yearsiTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$378k$343k$35k
2023$279k$335kDeficit $56k

As filed on the IRS Form 990. US dollars.