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Nonprofit · EIN 45-4065198

AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY

Tax-exempt · MERRICK, NY 11566

Financials

$144K$58K2023$456K$166K2024$150K$136K2025
Revenue Expenses · by fiscal year end
Financials of AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$150,060$135,853$14,207$2,647,787$0$2,647,787
December 31, 2024990$456,305$165,763$290,542$2,633,580$0$2,633,580
December 31, 2023990$144,232$58,014$86,218$2,343,038$0$2,343,038
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$23,625
Membership dues
$23,625
Program service revenue
$0
Investment income
$126,435
Net gain from sales of assets
-$23,107
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Accounting fees
$4,250
Program services (functional)
$111,290
Management and general (functional)
$24,563

Balance sheet and other

Total assets, start of year
$2,633,580
Total assets, end of year
$2,647,787
Total liabilities, end of year
$0
Net assets, end of year
$2,647,787
Publicly traded securities
$2,387,917
Net assets without donor restrictions
$2,647,787
Gross receipts
$511,220
Employees
0
Year formed
2011
State of legal domicile
TN

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.

NameTitleHours / weekCompensation
RUSHANI ALIDIRECTOR
Trustee or director
2$0
ANDRE MACHADOPAST PRESIDENT
Trustee or director, Officer
2$0
JULIE PILITSISPRESIDENT
Trustee or director, Officer
2$0
SHABBAR DANISHDIRECTOR
Trustee or director
2$0
ELLEN AIRVICE-PRESIDENT
Trustee or director, Officer
2$0
WAEL ASAADDIRECTOR
Trustee or director
2$0
SARA BICKDIRECTOR
Trustee or director
2$0
CLEMENT HAMANISEC- TREASURER
Trustee or director, Officer
2$0
JON WILLIEDIRECTOR
Trustee or director
2$0
JENNIFER SWEETDIRECTOR
Trustee or director
2$0
ASHWIN VISMANATHANDIRECTOR
Trustee or director
2$0
CHENYUAN WUDIRECTOR
Trustee or director
2$0
990 for the year ended December 31, 2024: 12 people
NameTitleHours / weekCompensation
RUSHANI ALIDIRECTOR
Trustee or director
2$0
ANDRE MACHADOPAST PRESIDENT
Trustee or director, Officer
2$0
JULIE PILITSISPRESIDENT
Trustee or director, Officer
2$0
SHABBAR DANISHDIRECTOR
Trustee or director
2$0
ELLEN AIRVICE-PRESIDENT
Trustee or director, Officer
2$0
WAEL ASAADDIRECTOR
Trustee or director
2$0
SARA BICKDIRECTOR
Trustee or director
2$0
CLEMENT HAMANISEC- TREASURER
Trustee or director, Officer
2$0
JON WILLIEDIRECTOR
Trustee or director
2$0
JENNIFER SWEETDIRECTOR
Trustee or director
2$0
ASHWIN VISMANATHANDIRECTOR
Trustee or director
2$0
CHENYUAN WUDIRECTOR
Trustee or director
2$0
990 for the year ended December 31, 2023: 16 people
NameTitleHours / weekCompensation
JOSEPH NEIMATPAST PRESIDENT
Trustee or director, Officer
2$0
ANDRE MACHADOPRESIDENT
Trustee or director, Officer
2$0
JULIE PILITSISVICE-PRESIDENT
Trustee or director, Officer
2$0
SHABBAR DANISHDIRECTOR
Trustee or director, Officer
2$0
ELLEN AIRSECRETARY/TREASURER
Trustee or director, Officer
2$0
DARIO ENGLOTDIRECTOR
Trustee or director
2$0
NATHAN ROWLANDDIRECTOR
Trustee or director
2$0
GUY MCKHANNDIRECTOR
Trustee or director
2$0
JOHN ROLSTONDIRECTOR
Trustee or director
2$0
NADER POURATIANDIRECTOR
Trustee or director
2$0
SHARONA BEN-HAIMDIRECTOR
Trustee or director
2$0
JASON SCHWALBDIRECTOR
Trustee or director
2$0
SAMEER SHETHDIRECTOR
Trustee or director
2$0
JENNIFER SWEETDIRECTOR
Trustee or director
2$0
ASHWIN VISMANATHANDIRECTOR
Trustee or director
2$0
CHENYUAN WUDIRECTOR
Trustee or director
2$0

Address and contacts

Address (IRS master file)
C/O DPH TAX SERVICES 41 REMSON AVE, MERRICK, NY 11566-0000
In care of
% ROBERT E GROSS MD PHD
Mailing address (990-N for 2015)
1365 Clifton Road Suite 6200, Atlanta GA 30322
Principal officer (990 for 2025)
ELLEN AIR, 2799 W GRAND BLVD, Detroit, MI 48202
Principal officer (990-N for 2015)
Robert E Gross MD PhD, 1365 Clifton Road Suite 6200, Atlanta GA 30322
Signed the 990
ELLEN AIR, OFFICER
Return prepared by
DPH TAX SERVICES

Mission

The ASSFN is dedicated to the treatment of functional disorders of the nervous system through the use of stereotaxy and other forms of surgical technology . The Society accomplishes this mission through public and professional education, dissemination of novel research, outreach to patients, and promotion of excellence in clinical care.

990 for the year ended December 31, 2025

Program accomplishments

  • ASSFN held varous webinars, podcasts in Jan, March ,May, Aug, Sept, Oct , 2025.. The scientific organization committee planned sessions,on explore cutting-edge topics at the Daily Plenary Sessions, featuring experts on Innovation in Neurosurgery, Collaborations in Music, Sports, and Neurosurgery, Exploringthe Conscious and Unconscious Brain, Advances in NeuralInterfaces, and Unlocking the Brain. Tailor your experiencewith parallel sessions covering diverse topics, includingBig Data and AI, Pediatric Surgical Advances, The Evolutionof Epilepsy Surgery, The Evolution of Movement DisorderSurgery, The Evolution of Psychiatric Neuromodulation,The Evolution of Pain Surgery, and Connectomic FunctionalNeurosurgery and Bench to Bedside Advances. There was sessions covering preclinical and basic research as well as lectures on clinical research. This event was attended by professionals with an interest in the field of SFN to support the mission of the society. Altogether the nearly 700 registrants for the event enjoyed 4 days of SF neurosurgery content .
    Expenses $111,290

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, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
45-4065198
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
2013
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Education (B90)
Assets (IRS master file)
$2,647,787
Income (IRS master file)
$511,220

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$150,060$135,853$2,647,787XML
990December 2024$456,305$165,763$2,633,580XML
990December 2023$144,232$58,014$2,343,038XML
990December 2022$309,423$206,843$2,256,820IRS
990December 2021–––IRS
990December 2020–––IRS
990December 2018–––IRS
990-N for 2015
Officer: Robert E Gross MD PhD
December 31, 2015≤ $50,000 receipts––e-Postcard

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 45-4065198).

Questions about AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY

What is the EIN of AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY?
The employer identification number (EIN) of AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY is 45-4065198.
Is AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2013.
Are donations to AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY 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 SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY 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 AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY 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 AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY?
The 990 for the year ended December 31, 2025 names ELLEN AIR.
Who are the officers and directors of AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY?
The 990 for the year ended December 31, 2025 lists 12 people; 0 received compensation from the organization.
How much revenue does AMERICAN SOCIETY FOR STEREOTACTIC AND FUNCTIONAL NEUROSURGERY have?
On its 990 for the year ended December 31, 2025 it reported revenue of $150,060, expenses of $135,853 and total assets of $2,647,787 at year end.

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