Civic Intelligence

Neurosurgery Research and Education

EIN 46-2905743 • 501(c)3 • Rolling Meadows, IL

Profile

The Neurosurgery Research and Education Foundation (NREF) is a not-for-profit 501(c)(3) incorporated in 2013 by the American Association of Neurological Surgeons (AANS) to support research and education efforts that enhance and confirm the critical role neurosurgeons play in improving lives.The NREF is dedicated to providing education to neurosurgeons at all stages of their careers, as well as funding research into new and existing neurosurgical treatments, in order to identify links between best practices and improved outcomes in patient care. Through voluntary public donations, corporate support, and donations from allied groups, the NREF supports endeavors that impact the lives of those suffering from epilepsy, stroke, brain tumors, spinal disorders, sports-related head injuries, lower back pain and Parkinson's disease.

5550 Meadowbrook Industrial CourtRolling Meadows, IL 60008

www.nref.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

68th percentile

0.38x

Higher debt load relative to assets than 68% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2024

Liabilities / Revenue

95th percentile

5.96x

Higher debt load relative to revenue than 95% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2024

Net Margin

2nd percentile

-140%

Higher net margin than 2% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2024

Top Officer Pay

93rd percentile

$677,599

Higher top officer pay than 93% of similar nonprofits.

Top officer pay equals 53.7% of source-year revenue.

501(c)3 • $10M-$25M nonprofits • Source year 2024

Asset Growth

3rd percentile

-42%

Faster asset growth than 3% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Annualized from 2023 to 2024

Revenue Growth

7th percentile

-37%

Faster revenue growth than 7% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets68th percentile

Assets

Down

$20,013,856

Down $14,367,374 (-42%) from 2023

Liabilities

Down

$7,518,215

Down $2,263,686 (-23%) from 2023

Net Assets

Down

$12,495,641

Down $12,103,688 (-49%) from 2023

Operations
Liabilities / Revenue95th percentileNet Margin2nd percentile

Revenue

Down

$1,260,828

Down $730,991 (-37%) from 2023

Expenses

Down

$3,031,774

Down $66,564 (-2.1%) from 2023

Net Income

Down

-$1,770,946

Down $664,427 (-60%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth3rd percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$40M$30M$20M$10M$0Assets 2014: $3,904,077Liabilities 2014: $1,140,049Net Assets 2014: $2,764,0282014Assets 2015: $6,263,875Liabilities 2015: $1,717,907Net Assets 2015: $4,545,9682015Assets 2016: $6,868,284Liabilities 2016: $1,912,940Net Assets 2016: $4,955,3442016Assets 2017: $8,080,155Liabilities 2017: $1,224,117Net Assets 2017: $6,856,0382017Assets 2018: $10,638,435Liabilities 2018: $2,022,700Net Assets 2018: $8,615,7352018Assets 2019: $12,390,596Liabilities 2019: $2,383,603Net Assets 2019: $10,006,9932019Assets 2020: $13,869,571Liabilities 2020: $3,274,364Net Assets 2020: $10,595,2072020Assets 2021: $17,360,321Liabilities 2021: $3,397,407Net Assets 2021: $13,962,9142021Assets 2022: $17,113,606Liabilities 2022: $3,694,818Net Assets 2022: $13,418,7882022Assets 2023: $34,381,230Liabilities 2023: $9,781,901Net Assets 2023: $24,599,3292023Assets 2024: $20,013,856Liabilities 2024: $7,518,215Net Assets 2024: $12,495,6412024

Highlighted filing

2024

Assets$20,013,856
Liabilities$7,518,215
Net Assets$12,495,641
Open 2024 Filing

Operations Trend

Revenue Growth7th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$6.0M$4.0M$2.0M$0-$2.0MRevenue 2014: $2,993,550Expenses 2014: $2,274,473Net Income 2014: $719,0772014Revenue 2015: $3,399,427Expenses 2015: $2,557,532Net Income 2015: $841,8952015Revenue 2016: $2,807,592Expenses 2016: $2,544,834Net Income 2016: $262,7582016Revenue 2017: $4,106,958Expenses 2017: $2,441,352Net Income 2017: $1,665,6062017Revenue 2018: $4,551,145Expenses 2018: $2,811,505Net Income 2018: $1,739,6402018Revenue 2019: $4,194,244Expenses 2019: $3,000,555Net Income 2019: $1,193,6892019Revenue 2020: $3,635,284Expenses 2020: $2,936,761Net Income 2020: $698,5232020Revenue 2021: $3,758,109Expenses 2021: $3,028,571Net Income 2021: $729,5382021Revenue 2022: $2,938,037Expenses 2022: $3,190,399Net Income 2022: -$252,3622022Revenue 2023: $1,991,819Expenses 2023: $3,098,338Net Income 2023: -$1,106,5192023Revenue 2024: $1,260,828Expenses 2024: $3,031,774Net Income 2024: -$1,770,9462024

Highlighted filing

2024

Revenue$1,260,828
Expenses$3,031,774
Net Income-$1,770,946
Open 2024 Filing

Filings

Most recent year

2024 • Form 990Detailed filing. Detailed filing data is available for this year.

Open filing
Assets
$20,013,856
Liabilities
$7,518,215
Net assets
$12,495,641
Revenue
$1,260,828
Expenses
$3,031,774
Net income
-$1,770,946
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Detailed filing. Detailed filing data is available for this year.$20.0$7.52$12.5$1.26$3.03$1.77
2023XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$34.4$9.78$24.6$1.99$3.10$1.11
2022Detailed filing. Detailed filing data is available for this year.$17.1$3.69$13.4$2.94$3.19$0.25
2021Detailed filing. Detailed filing data is available for this year.$17.4$3.40$14.0$3.76$3.03$0.73
2020Detailed filing. Detailed filing data is available for this year.$13.9$3.27$10.6$3.64$2.94$0.70
2019Detailed filing. Detailed filing data is available for this year.$12.4$2.38$10.0$4.19$3.00$1.19
2018Detailed filing. Detailed filing data is available for this year.$10.6$2.02$8.62$4.55$2.81$1.74
2017Detailed filing. Detailed filing data is available for this year.$8.08$1.22$6.86$4.11$2.44$1.67
2016Detailed filing. Detailed filing data is available for this year.$6.87$1.91$4.96$2.81$2.54$0.26
2015Detailed filing. Detailed filing data is available for this year.$6.26$1.72$4.55$3.40$2.56$0.84
2014Detailed filing. Detailed filing data is available for this year.$3.90$1.14$2.76$2.99$2.27$0.72
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jul 1, 2023 to Jun 30, 2024
Signed
May 15, 2025
Return Version
2023v6.0
Gross Receipts
$2,959,364
Mission and Program Overview

Mission

Enhance lives by advancing neurosurgical care through the funding of research and education.

NREF supports basic science and clinical research, as well as life-long education, to foster improved outcomes for our patients with neurosurgical diseases.

Balance Sheet Detail
LineBeginningEndChange
Assets
Investments in Publicly Traded Securities$25,175,235$13,193,378▼ $11,981,857
Accounts Receivable$9,123,100$7,700,030▼ $1,423,070
Pledges and Grants Receivable$378,317$69,766▼ $308,551
Land, Buildings, and Equipment, Net$0$0→ $0
Cash and Non-Interest-Bearing Accounts$-295,422$-949,318▼ $653,896
Total Assets$34,381,230$20,013,856▼ $14,367,374
Liabilities
Grants Payable$4,057,276$5,670,960▲ $1,613,684
Other Liabilities$1,925,449$1,740,320▼ $185,129
Accounts Payable and Accrued Expenses$3,799,176$106,935▼ $3,692,241
Total Liabilities$9,781,901$7,518,215▼ $2,263,686
Net Assets / Fund Balance
Net Assets With Donor Restrictions$21,816,768$11,366,873▼ $10,449,895
Net Assets Without Donor Restrictions$2,782,561$1,128,768▼ $1,653,793
Total Net Assets Fund Balance$24,599,329$12,495,641▼ $12,103,688
Total Liabilities and Net Assets / Fund Balance$34,381,230$20,013,856▼ $14,367,374

Asset Categories

AssetBook ValueDepreciationBasis
Equipment$0$7,445$7,445
Compensation and Service Providers
Top Officer Pay93rd percentile

Board Members and Trustees

NameTitle
Adam S ArthurChair
Anthony L AsherAANS President
Charles L Branch JrVice-Chair
E Antonio ChioccaDirector
Frederick G Barker IIDirector
J Flagg FlanaganDirector
James T RutkaDirector
Jon H RobertsonDirector
Michael Y WangDirector
Mohamad BydonDirector
Stacey WolfeDirector
Katherine O OrricoCEO
Kathleen T CraigCEO (Until 12/31/23)
Carol JonesCFO
Michael A ChabrajaLegal Counsel
Gregory J ZipfelSecretary
Sepideh Amin-HanjaniTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$1,967,239
Program Service Revenue
$435,000
Investment Income
$-1,141,411
Other Revenue
$0
All Other Contributions
$1,823,079
Change in Net Assets
$-1,770,946
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Grants and Similar Amounts Paid$1,795,882
Other Expenses$661,568
Salaries, Compensation, and Employee Benefits$574,324
Total Fundraising Expense$330,027
Professional Fundraising Fees$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Grants to Domestic Orgs$1,795,882--$1,795,882
Other Salaries and Wages-$244,297$330,027$574,324
Travel$166,043$10,294-$176,337
Fees for Service Investment Mgmnt Fees-$75,971-$75,971
Office Expenses$10,268$46,643-$56,911
Fees for Services Other-$42,493-$42,493
Fees for Services Management-$40,919-$40,919
Fees for Services Legal-$36,684-$36,684
Other Expenses$96,703$26,423-$26,423
Total Functional Expenses$2,178,007$523,740$330,027$3,031,774
International Activity

Grant and Assistance Recipients

RecipientLocationCategoryPurposeAmount
University of MiamiAtlanta, GA501(c)(3)Medical Student Summer Research grants$180,000
Rush University Medical CenterChicago, IL501(c)(3)Medical Student Summer Research grants$135,000
University of California San FranciscoSan Francisco, CA501(c)(3)Medical Student Summer Research grants$135,000
University of UtahSalt Lake City, UT501(c)(3)Medical Student Summer Research grants$125,000
Dignity Health-St Joseph's AZLos Angeles, CA501(c)(3)Medical Student Summer Research grants$90,000
The Rector and Visitors of the University of VirginiaCharlottesville, VA501(c)(3)Medical Student Summer Research grants$85,000
John Hopkins UniversityChicago, IL501(c)(3)Medical Student Summer Research grants$67,500
University of Pittsburgh PhysiciansPittsburgh, PA501(c)(3)Medical Student Summer Research grants$67,500
Duke UniversityCharlotte, NC501(c)(3)Medical Student Summer Research grants$62,500
Cedars-Sinai Medical CenterLos Angeles, CA501(c)(3)Medical Student Summer Research grants$60,000
Medical College of WisconsinMilwaukee, WI501(c)(3)Medical Student Summer Research grants$60,000
Memorial Sloan - KetteringNew York, NY501(c)(3)Medical Student Summer Research grants$60,000
Rhode Island HospitalProvidence, RI501(c)(3)Medical Student Summer Research grants$60,000
The Cleveland Clinic Educational FoundationIndependence, OH501(c)(3)Medical Student Summer Research grants$60,000
The Cleveland Clinic FoundationIndependence, OH501(c)(3)Medical Student Summer Research grants$60,000
University of WashingtonSeattle, WA501(c)(3)Medical Student Summer Research grants$60,000
Payment Solutions and ComplianceLos Angeles, CA501(c)(3)Medical Student Summer Research grants$50,000
University of Texas Southwestern Medical CenterDallas, TX501(c)(3)Medical Student Summer Research grants$50,000
Thomas Jefferson UniversityPhiladelphia, PA501(c)(3)Medical Student Summer Research grants$45,000
University of CincinnatiCincinnati, OH501(c)(3)Medical Student Summer Research grants$45,000
Mayo Clinic ResearchRochester, MN501(c)(3)Medical Student Summer Research grants$40,000
Mayo Clinic Research Finance-ArizonaScottsdale, AZ501(c)(3)Medical Student Summer Research grants$40,000
Washington University - St LouisSt Louis, MO501(c)(3)Medical Student Summer Research grants$40,000
Northwestern UniversityEvanson, IL501(c)(3)Medical Student Summer Research grants$30,000
Fundraising, Events, and Gaming
Fundraising activities
Yes
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Fundraising Direct Expenses$135,190
Fundraising Gross Income$135,190
Professional Fundraising Fees$0

Fundraising Events

EventGross ReceiptsGross RevenueDirect ExpensesNet Income
Dinner$207,800$98,378$2,000$96,378
Dinner$43,200$20,440-$20,440
Total Events$279,350$135,190$135,190$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Debt and Bond Financing

Other Reported Liabilities

LiabilityAmount
Due to American Association of Neurosurgeons, Inc$1,740,320
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
Yes
Backup withholding compliance
Yes
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
Yes
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Form 990, Part VI, Section A, line 7A

“The Foundation's Board of Directors shall include two (2) directors appointed by the Society of Neurological Surgeons (SNS) and one (1) director appointed by the American Academy of Neurological Surgery (Academy).”

Form 990, Part VI, Section B, line 11B

“The Organization's Form 990 is reviewed by the Accounting Manager, Chief Financial Officer and by the Chief Development Officer of the Neurosurgery Research and Education Foundation.”

Form 990, Part VI, Section B, line 12C

“In order that the decisions and actions of NREF not be unduly influenced by any special interests of individual members or employees, the Foundation's Board of Directors, all Committee Chairs and Committee Members, and NREF Management (including Chief Development Officer, Director of Foundation Services, and Development Coordinator) and the Foundation's General Counsel must file an electronic disclosure statement annually.”

Form 990, Part VI, Section B, line 15

“The compensation for the Chief Executive Officer and the Chief Financial Officer was determined by the related organization: American Association of Neurosurgeons, Inc. The following process was used: The Chief Executive Officer's annual compensation is subject to the provisions in their employment contract: the Executive shall receive a base salary, paid in accordance with the Association's normal payroll practices. Effective as of January 1, 2021, the Executive's base salary shall be at an annual rate of $500,000. The Association may award the Executive bonuses in such amounts and at such times as the Association's Review Committee, in his or her sole discretion, deems appropriate. This process is documented. Compensation for the CFO and Associate Executive Directors was determined by the Chief Executive Officer. The CEO's basis for determining compensation is based on market data including the Association's Forum of Chicagoland.”

Form 990, Part VI, Section C, line 19

“The Organization makes its governing documents, conflict of interest policy and financial statements are available upon request for the same period of disclosure as set forth in IRC Section 6104(d).”

Filing and Contact Details

Filer

Filer Name
Neurosurgery Research and Education
EIN
46-2905743
Phone
8473780500
Address
5550 Meadowbrook Industrial Court, Rolling Meadows, IL 60008
Doing Business As
Nref

Signing Officer

Name
Carol A Jones
Title
CFO
Phone
8473780500
Signed
2025-05-15
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Katherine O Orrico
Formed
2013
Legal Domicile
Il
Voting Board Members
13
Independent Board Members
13
Employees
0
Volunteers
47

Preparer

Firm
Rsm US Llp
Address
30 S Wacker Drive Ste 3300, Chicago, IL 60606
Preparer
Rebekuh Eley
Phone
3126343400
Supplemental Narrative

Additional Explanations

Form 990, Part XI, line 9:

“Resincded Grants 173,063.”

Raw XML AppendixShowing 400 of 884 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt120
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt1353386
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt1454323
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt1534214
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt160
IRS990/Form990PartVIISectionAGrp/PersonNm0Anthony L Asher
IRS990/Form990PartVIISectionAGrp/PersonNm1Adam S Arthur
IRS990/Form990PartVIISectionAGrp/PersonNm2Charles L Branch Jr
IRS990/Form990PartVIISectionAGrp/PersonNm3Sepideh Amin-Hanjani
IRS990/Form990PartVIISectionAGrp/PersonNm4Gregory J Zipfel
IRS990/Form990PartVIISectionAGrp/PersonNm5Frederick G Barker II
IRS990/Form990PartVIISectionAGrp/PersonNm6Mohamad Bydon
IRS990/Form990PartVIISectionAGrp/PersonNm7E Antonio Chiocca
IRS990/Form990PartVIISectionAGrp/PersonNm8J Flagg Flanagan
IRS990/Form990PartVIISectionAGrp/PersonNm9Jon H Robertson
IRS990/Form990PartVIISectionAGrp/PersonNm10James T Rutka
IRS990/Form990PartVIISectionAGrp/PersonNm11Michael Y Wang
IRS990/Form990PartVIISectionAGrp/PersonNm12Stacey Wolfe
IRS990/Form990PartVIISectionAGrp/PersonNm13Katherine O Orrico
IRS990/Form990PartVIISectionAGrp/PersonNm14Kathleen T Craig
IRS990/Form990PartVIISectionAGrp/PersonNm15Carol Jones
IRS990/Form990PartVIISectionAGrp/PersonNm16Michael A Chabraja
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt00
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt10
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt20
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt30
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt40
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt50
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt60
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt70
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt80
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt90
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt100
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt110
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt120
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt130
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt140
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt150
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt160
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt00
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt10
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt20
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt30
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt40
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt50
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt60
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt70
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt80
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt90
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt100
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt110
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt120
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt13327014
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt14623276
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt15190681
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt160
IRS990/Form990PartVIISectionAGrp/TitleTxt0AANS President
IRS990/Form990PartVIISectionAGrp/TitleTxt1Chair
IRS990/Form990PartVIISectionAGrp/TitleTxt2Vice-Chair
IRS990/Form990PartVIISectionAGrp/TitleTxt3Treasurer
IRS990/Form990PartVIISectionAGrp/TitleTxt4Secretary
IRS990/Form990PartVIISectionAGrp/TitleTxt5Director
IRS990/Form990PartVIISectionAGrp/TitleTxt6Director
IRS990/Form990PartVIISectionAGrp/TitleTxt7Director
IRS990/Form990PartVIISectionAGrp/TitleTxt8Director
IRS990/Form990PartVIISectionAGrp/TitleTxt9Director
IRS990/Form990PartVIISectionAGrp/TitleTxt10Director
IRS990/Form990PartVIISectionAGrp/TitleTxt11Director
IRS990/Form990PartVIISectionAGrp/TitleTxt12Director
IRS990/Form990PartVIISectionAGrp/TitleTxt13CEO
IRS990/Form990PartVIISectionAGrp/TitleTxt14CEO (Until 12/31/23)
IRS990/Form990PartVIISectionAGrp/TitleTxt15CFO
IRS990/Form990PartVIISectionAGrp/TitleTxt16Legal Counsel
IRS990/Form990ProvidedToGvrnBodyInd00
IRS990/FormationYr02013
IRS990/FormerOfcrEmployeesListedInd00
IRS990/FSAuditedInd00
IRS990/FundraisingActivitiesInd01
IRS990/FundraisingAmt0144160
IRS990/FundraisingDirectExpensesAmt0135190
IRS990/FundraisingGrossIncomeAmt0135190
IRS990/GainOrLossGrp/SecuritiesAmt0-142019
IRS990/GamingActivitiesInd00
IRS990/GoverningBodyVotingMembersCnt013
IRS990/GrantAmt01795882
IRS990/GrantsPayableGrp/BOYAmt04057276
IRS990/GrantsPayableGrp/EOYAmt05670960
IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt01795882
IRS990/GrantsToDomesticOrgsGrp/TotalAmt01795882
IRS990/GrantsToIndividualsInd00
IRS990/GrantsToOrganizationsInd01
IRS990/GrantToRelatedPersonInd00
IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt01421327
IRS990/GrossReceiptsAmt02959364
IRS990/GroupReturnForAffiliatesInd00
IRS990/IncludeFIN48FootnoteInd00
IRS990/IndependentAuditFinclStmtInd00
IRS990/IndependentVotingMemberCnt013
IRS990/IndivRcvdGreaterThan100KCnt00
IRS990/IndoorTanningServicesInd00
IRS990/InfoInScheduleOPartVIInd0X
IRS990/InfoInScheduleOPartXIInd0X
IRS990/InvestmentIncomeGrp/ExclusionAmt0-999392
IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt0-999392
IRS990/InvestmentInJointVentureInd00
IRS990/InvestmentsPubTradedSecGrp/BOYAmt025175235
IRS990/InvestmentsPubTradedSecGrp/EOYAmt013193378
IRS990/IRPDocumentCnt06
IRS990/IRPDocumentW2GCnt00
IRS990/LandBldgEquipAccumDeprecAmt07445
IRS990/LandBldgEquipBasisNetGrp/BOYAmt00
IRS990/LandBldgEquipBasisNetGrp/EOYAmt00
IRS990/LandBldgEquipCostOrOtherBssAmt07445
IRS990/LegalDomicileStateCd0IL
IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt01563346
IRS990/LoanOutstandingInd00
IRS990/LobbyingActivitiesInd00
IRS990/LocalChaptersInd00
IRS990/MaterialDiversionOrMisuseInd00
IRS990/MembersOrStockholdersInd00
IRS990/MethodOfAccountingAccrualInd0X
IRS990/MinutesOfCommitteesInd01
IRS990/MinutesOfGoverningBodyInd01
IRS990/MissionDesc0NREF supports basic science and clinical research, as well as life-long education, to foster improved outcomes for our patients with neurosurgical diseases.
IRS990/MoreThan5000KToIndividualsInd00
IRS990/MoreThan5000KToOrgInd00
IRS990/NetAssetsOrFundBalancesBOYAmt024599329
IRS990/NetAssetsOrFundBalancesEOYAmt012495641
IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt0-142019
IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt0-142019
IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt00
IRS990/NetUnrelatedBusTxblIncmAmt00
IRS990/NetUnrlzdGainsLossesInvstAmt01261313
IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt02782561
IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt01128768
IRS990/NondeductibleContributionsInd00
IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt046643
IRS990/OfficeExpensesGrp/ProgramServicesAmt010268
IRS990/OfficeExpensesGrp/TotalAmt056911
IRS990/OfficerMailingAddressInd00
IRS990/OperateHospitalInd00
IRS990/Organization501c3Ind0X
IRS990/OrganizationFollowsFASB117Ind0X
IRS990/OtherChangesInNetAssetsAmt0173063
IRS990/OtherExpensesGrp/Desc0Facility Charges
IRS990/OtherExpensesGrp/Desc1Supplies
IRS990/OtherExpensesGrp/Desc2Dues and Subscriptions
IRS990/OtherExpensesGrp/ManagementAndGeneralAmt016
IRS990/OtherExpensesGrp/ManagementAndGeneralAmt126423
IRS990/OtherExpensesGrp/ProgramServicesAmt0109111
IRS990/OtherExpensesGrp/ProgramServicesAmt196703
IRS990/OtherExpensesGrp/TotalAmt0109111
IRS990/OtherExpensesGrp/TotalAmt196719
IRS990/OtherExpensesGrp/TotalAmt226423
IRS990/OtherLiabilitiesGrp/BOYAmt01925449
IRS990/OtherLiabilitiesGrp/EOYAmt01740320
IRS990/OtherSalariesAndWagesGrp/FundraisingAmt0330027
IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt0244297
IRS990/OtherSalariesAndWagesGrp/TotalAmt0574324
IRS990/PartialLiquidationInd00
IRS990/PayPremiumsPrsnlBnftCntrctInd00
IRS990/PledgesAndGrantsReceivableGrp/BOYAmt0378317
IRS990/PledgesAndGrantsReceivableGrp/EOYAmt069766
IRS990/PoliticalCampaignActyInd00
IRS990/PrincipalOfficerNm0Katherine O Orrico
IRS990/PriorPeriodAdjustmentsAmt0-11767118
IRS990/ProfessionalFundraisingInd00
IRS990/ProgramServiceRevenueGrp/BusinessCd0611430
IRS990/ProgramServiceRevenueGrp/Desc0Prof. Develop. Courses
IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt0435000
IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt0435000
IRS990/ProhibitedTaxShelterTransInd00
IRS990/PYBenefitsPaidToMembersAmt00
IRS990/PYContributionsGrantsAmt01319171
IRS990/PYExcessBenefitTransInd00
IRS990/PYGrantsAndSimilarPaidAmt01888000
IRS990/PYInvestmentIncomeAmt0-233852
IRS990/PYOtherExpensesAmt0517821
IRS990/PYOtherRevenueAmt00
IRS990/PYProgramServiceRevenueAmt0906500
IRS990/PYRevenuesLessExpensesAmt0-1106519
IRS990/PYSalariesCompEmpBnftPaidAmt0683517
IRS990/PYTotalExpensesAmt03098338
IRS990/PYTotalProfFndrsngExpnsAmt09000
IRS990/PYTotalRevenueAmt01991819
IRS990/QuidProQuoContributionsInd01
IRS990/QuidProQuoContriDisclInd01
IRS990/RcvFndsToPayPrsnlBnftCntrctInd00
IRS990/ReconcilationRevenueExpnssAmt0-1770946
IRS990/RegularMonitoringEnfrcInd01
IRS990/RelatedEntityInd01
IRS990/RelatedOrganizationCtrlEntInd01
IRS990/ReportInvestmentsOtherSecInd00
IRS990/ReportLandBuildingEquipmentInd01
IRS990/ReportOtherAssetsInd00
IRS990/ReportOtherLiabilitiesInd01
IRS990/ReportProgramRelatedInvstInd00
IRS990/RevenueAmt0435000
IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt0Miscellaneous - 2020 Amount: $ 1,000. 2021 Amount: $ 76,813.
IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc0Schedule A, Part II, Line 10, Explanation of Other Income:
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt02102429
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt01319171
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt01994440
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt03229078
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt02627946
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt011273064
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt00
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt0239005
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt0188857
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt0264518
IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt0692380
IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt02572989
IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus2YearsAmt076813
IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus3YearsAmt01000
IRS990ScheduleA/OtherIncome170Grp/TotalAmt077813
IRS990ScheduleA/PublicOrganization170Ind0X
IRS990ScheduleA/PublicSupportCY170Pct00.45900
IRS990ScheduleA/PublicSupportPY170Pct00.61850
IRS990ScheduleA/PublicSupportTotal170Amt05527600
IRS990ScheduleA/SubstantialContributorsTotAmt05745464
IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind0X
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt02102429
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt01319171
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt01994440
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt03229078
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt02627946
IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt011273064
IRS990ScheduleA/TotalSupportAmt012043257
IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine10RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorNum0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine10RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine20RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt0RESTRICTED
IRS990/ScheduleBRequiredInd01
IRS990ScheduleD/EquipmentGrp/BookValueAmt00
IRS990ScheduleD/EquipmentGrp/DepreciationAmt07445
IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt07445
IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt01740320
IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc0Due to American Association of Neurosurgeons, Inc
IRS990ScheduleD/TotalBookValueLandBuildingsAmt00
IRS990ScheduleD/TotalLiabilityAmt01740320
IRS990ScheduleG/FundraisingEventInformationGrp/CharitableContributionsTotAmt0144160
IRS990ScheduleG/FundraisingEventInformationGrp/CharitableContriEvent1Amt0109422
IRS990ScheduleG/FundraisingEventInformationGrp/CharitableContriEvent2Amt022760
IRS990ScheduleG/FundraisingEventInformationGrp/CharitableContriOtherEventsAmt011978
IRS990ScheduleG/FundraisingEventInformationGrp/DirectExpenseSummaryEventsAmt0135190
IRS990ScheduleG/FundraisingEventInformationGrp/Event1Nm0Dinner
IRS990ScheduleG/FundraisingEventInformationGrp/Event2Nm0Dinner
IRS990ScheduleG/FundraisingEventInformationGrp/FoodAndBeverageEvent1Amt072694
IRS990ScheduleG/FundraisingEventInformationGrp/FoodAndBeverageEvent2Amt020440
IRS990ScheduleG/FundraisingEventInformationGrp/FoodAndBeverageOtherEventsAmt016372
IRS990ScheduleG/FundraisingEventInformationGrp/FoodAndBeverageTotalEventsAmt0109506

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