Mission
THE CNS EXISTS TO ENHANCE HEALTH AND IMPROVE LIVES THROUGH THE ADVANCEMENT OF NEUROSURGICAL EDUCATION AND SCIENTIFIC EXCHANGE.
Public Charity
CONGRESS OF NEUROLOGICAL SURGEONS INC
CONGRESS OF NEUROLOGICAL SURGEONS INC, of SCHAUMBURG, IL, is a Public Charity tracked in Imperigo's IRS 990 database. The 2025 filing shows $19.3M in revenue, $16.6M in expenses, $44.4M in total assets. 10 publicly reported grants to this organization, totaling roughly $271K, appear in IRS filings.
EIN: 521660107
SCHAUMBURG, IL
Neurology & Neuroscience
NTEE: G96
Latest filing: 2025
Total Revenue$19.3M
Total Expenses$16.6M
Total Assets$44.4M
Grant Records10
Funding Total$271K
Filing Years2020–2025
Where $100 goes at Congress of Neurological Surgeons Inc
How Congress of Neurological Surgeons Inc divides every $100 it spends, from its own Form 990 filings, averaged across 8 years.
$72
Programs
the work itself
$26
Management
running the organization
$2
Fundraising
raising the next dollar
Inside the $72 for programs
$63
Annual meetings
$8
Publications
$1
The Congress of Neurological Surgeons (cns) continuing medical education (cme) program provides education that addresses the identified professional practice gaps of cns members to inform and enhance neurosurgical…
Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Sample Grants Received
Operating Support/Annual Fund
$10,000
$67,500
STAFF TIME SPENT ON PERIOPERATIVE GUIDELINE INITIATIVE
$127,470
ASSFN Resident Award
$8,099
Neurosurgery Related Awards
$12,250
Showing up to 5 of 10 total records — full history available with membership.
Officers & Directors
PAST PRESIDENT- PAST
Alex A Khalessi
TREASURER
Ashok R Asthagiri
VICE PRESIDENT - PAST/PRESIDENT ELECT - NEW
Brian V Nahed
PRESIDENT /PAST PRESIDENT
Daniel J Hoh
DEPUTY EXECUTIVE DIRECTOR
David Berg
MEMBER AT LARGE
David Dornbos Iii
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $19.3M | $16.6M | $44.4M |
| 2024 | $18.0M | $16.3M | $37.8M |
| 2023 | $16.7M | $16.3M | $35.5M |
| 2022 | $12.8M | $15.7M | $36.0M |
| 2020 | $10.8M | $8.8M | $32.1M |
Between 2020 and 2025, reported annual revenue grew from $10.8M to $19.3M (+78%), with total assets most recently reported at $44.4M.
Interactive year-over-year charts and full filing details available with membership.