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North American Skull Base Society

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Medical Research N.E.C. (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$1.39M (2023)

Expenses
$1.38M (2023)

Total Assets
$2.31M (2023)

Total Liabilities
$688k (2023)

Source: Form 990 tax filings from 2010 to 2023

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,392,677
Expenses
$1,383,816
Net Income
$8,861
Net Assets
$1,625,408
Notable Sources of Revenue Percent of Total Revenue
Contributions $592,535
42.5%
Program Services $642,319
46.1%
Investment Income $157,823
11.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,313,312
Total Liabilities $687,904
Net Assets $1,625,408
Compensation
Key Employees and Officers Compensation Related Other
Siviero Agazzi (President) $0 $0 $0
Erin Mckean (President El) $0 $0 $0
L Madison Michael (Vice Preside) $0 $0 $0
Daniel Prevedello (Secretary) $0 $0 $0
Zoukaa Sargi (Treasurer) $0 $0 $0
Lee Zimmer (Past Preside) $0 $0 $0
Christopher Farrell (Director) $0 $0 $0
Maria Peres Celda (Director) $0 $0 $0
Shirley Su (Director) $0 $0 $0
Eric Wang (Director) $0 $0 $0
Samuel Barnett (Director) $0 $0 $0
Jurij Bilyk (Director) $0 $0 $0
Eugene Yu (Director) $0 $0 $0
Moises Arriaga (Director) $0 $0 $0
Lola Chambless (Director) $0 $0 $0
John De Almeida (Director) $0 $0 $0
Juan Fernandez Miranda (Director) $0 $0 $0
C Arturo Solares (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$986,452
Expenses
$1,117,995
Net Income
-$131,543
Net Assets
$1,616,547
Notable Sources of Revenue Percent of Total Revenue
Contributions $599,496
60.8%
Program Services $538,480
54.6%
Investment Income -$151,524
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,218,386
Total Liabilities $601,839
Net Assets $1,616,547
Compensation
Key Employees and Officers Compensation Related Other
Allan Vescon (Director) $0 $0 $0
Moises Arriaga (Director) $0 $0 $0
Amir Dehdashti (Director) $0 $0 $0
Zoukaa Sargi (Treasurer) $0 $0 $0
Jeff Sorenson (Director) $0 $0 $0
Lola Chambless (Director) $0 $0 $0
John De Almeida (Director) $0 $0 $0
Sam Barnett (Director) $0 $0 $0
Rick Friedman (Director) $0 $0 $0
Juan Fernandez Miranda (Director) $0 $0 $0
Daniel Prevedello (Director) $0 $0 $0
Derrick Lin (Director) $0 $0 $0
Jurij Bilyk (Director) $0 $0 $0
C Arturo Solares (Director) $0 $0 $0
Eugene Yu (Director) $0 $0 $0
Silviero Agazzi (President Elect) $0 $0 $0
Lee Zimmer (President) $0 $0 $0
L Madison Michael (Secretary) $0 $0 $0
John Golfinos (Imm. Past Pres.) $0 $0 $0
Eric Mc Kean (Vice President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$493,435
Expenses
$415,798
Net Income
$77,637
Net Assets
$1,748,090
Notable Sources of Revenue Percent of Total Revenue
Contributions $295,885
60.0%
Program Services $119,435
24.2%
Investment Income $78,115
15.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,330,032
Total Liabilities $581,942
Net Assets $1,748,090
Compensation
Key Employees and Officers Compensation Related Other
Jean Anderson Eloy (Director) $0 $0 $0
Allan Vescon (Director) $0 $0 $0
Jim Liu (Director) $0 $0 $0
Amir Dehdashti (Director) $0 $0 $0
Zoukaa Sargi (Director) $0 $0 $0
Jeff Sorenson (Director) $0 $0 $0
Shaan Raza (Director) $0 $0 $0
Sam Barnett (Director) $0 $0 $0
Rick Friedman (Director) $0 $0 $0
Daniel Prevedello (Director) $0 $0 $0
Derrick Lin (Director) $0 $0 $0
Ricardo Carrau (Past President) $0 $0 $0
Eric Mc Kean (Director) $0 $0 $0
Jurij Bilyk (Director) $0 $0 $0
C Arturo Solares (Director) $0 $0 $0
Eugene Yu (Director) $0 $0 $0
Silviero Agazzi (Vice President) $0 $0 $0
L Madison Michael (Secretary) $0 $0 $0
Lee Zimmer (President Elect) $0 $0 $0
Adam Zanation (Treasurer) $0 $0 $0
John Golfinos (President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,143,828
Expenses
$985,292
Net Income
$158,536
Net Assets
$1,670,453
Notable Sources of Revenue Percent of Total Revenue
Contributions $403,575
35.3%
Program Services $625,820
54.7%
Investment Income $114,433
10.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,852,342
Total Liabilities $181,889
Net Assets $1,670,453
Compensation
Key Employees and Officers Compensation Related Other
Jean Anderson Eloy (Director) $0 $0 $0
Allan Vescon (Director) $0 $0 $0
Jim Liu (Director) $0 $0 $0
Amir Dehdashti (Director) $0 $0 $0
Zoukaa Sargi (Director) $0 $0 $0
Jeff Sorenson (Director) $0 $0 $0
Shaan Raza (Director) $0 $0 $0
Sam Barnett (Director) $0 $0 $0
Rick Friedman (Director) $0 $0 $0
Daniel Prevedello (Director) $0 $0 $0
Derrick Lin (Director) $0 $0 $0
Ricardo Carrau (Past President) $0 $0 $0
Eric Mc Kean (Director) $0 $0 $0
Jurij Bilyk (Director) $0 $0 $0
C Arturo Solares (Director) $0 $0 $0
Eugene Yu (Director) $0 $0 $0
Silviero Agazzi (Vice President) $0 $0 $0
L Madison Michael (Secretary) $0 $0 $0
Lee Zimmer (President Elect) $0 $0 $0
Adam Zanation (Treasurer) $0 $0 $0
John Golfinos (President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,284,847
Expenses
$1,083,200
Net Income
$201,647
Net Assets
$1,511,917
Notable Sources of Revenue Percent of Total Revenue
Contributions $495,350
38.6%
Program Services $653,923
50.9%
Investment Income $135,574
10.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,114,833
Total Liabilities $602,916
Net Assets $1,511,917
Compensation
Key Employees and Officers Compensation Related Other
Jean Anderson Eloy (Director) $0 $0 $0
Allan Vescon (Director) $0 $0 $0
Jim Liu (Director) $0 $0 $0
Amir Dehdashti (Director) $0 $0 $0
Zoukaa Sargi (Director) $0 $0 $0
Kris Moe (Director) $0 $0 $0
Jeff Sorenson (Director) $0 $0 $0
Shaan Raza (Director) $0 $0 $0
Rick Friedman (Director) $0 $0 $0
Adam Zanation (Treasurer) $0 $0 $0
Derrick Lin (Director) $0 $0 $0
Eric Mc Kean (Director) $0 $0 $0
Silviero Agazzi (Secretary) $0 $0 $0
Lee Zimmer (Vice President) $0 $0 $0
James Evans (Past President) $0 $0 $0
John Golfinos (President Elect) $0 $0 $0
Daniel Prevedello (Director) $0 $0 $0
Ricardo Carrau (President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$937,958
Expenses
$971,872
Net Income
-$33,914
Net Assets
$1,310,270
Notable Sources of Revenue Percent of Total Revenue
Contributions $402,560
42.9%
Program Services $588,348
62.7%
Investment Income -$52,950
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,739,841
Total Liabilities $429,571
Net Assets $1,310,270
Compensation
Key Employees and Officers Compensation Related Other
Matthew Carlson (Director) $0 $0 $0
Paul Gardner (Director) $0 $0 $0
Jim Liu (Director) $0 $0 $0
Madison Michael (Director) $0 $0 $0
Zoukaa Sargi (Director) $0 $0 $0
Kris Moe (Director) $0 $0 $0
George Wanna (Director) $0 $0 $0
Shaan Raza (Director) $0 $0 $0
Gelareh Zadeh (Director) $0 $0 $0
Adam Zanation (Director) $0 $0 $0
Anderson Eloy (Director) $0 $0 $0
Eric Mc Kean (Director) $0 $0 $0
Silviero Agazzi (Secretary) $0 $0 $0
Lee Zimmer (Treasurer) $0 $0 $0
James Evans (President) $0 $0 $0
John Golfinos (Vice President) $0 $0 $0
Ian Witterick (Past President) $0 $0 $0
Ricardo Carrau (President Elect) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$966,148
Expenses
$659,548
Net Income
$306,600
Net Assets
$1,344,184
Notable Sources of Revenue Percent of Total Revenue
Contributions $381,184
39.5%
Program Services $545,108
56.4%
Investment Income $39,856
4.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,872,392
Total Liabilities $528,208
Net Assets $1,344,184
Compensation
Key Employees and Officers Compensation Related Other
Silviero Agazzi (Director) $0 $0 $0
Matthew Carlson (Director) $0 $0 $0
Paul Gardner (Director) $0 $0 $0
Madison Michael (Director) $0 $0 $0
Ivan Sayed (Director) $0 $0 $0
George Wanna (Director) $0 $0 $0
Steven Frank (Director) $0 $0 $0
Lee Zimmer (Treasurer) $0 $0 $0
Gelareh Zadeh (Director) $0 $0 $0
Adam Zanation (Director) $0 $0 $0
John Golfinos (Secretary) $0 $0 $0
Thomas Roland (Director) $0 $0 $0
Jacques Morcos (Past President) $0 $0 $0
Kris Moe (Director) $0 $0 $0
James Evans (President Elect) $0 $0 $0
Ian Witterick (President) $0 $0 $0
Ricardo Carrau (Vice President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,066,119
Expenses
$738,632
Net Income
$327,487
Net Assets
$1,037,584
Notable Sources of Revenue Percent of Total Revenue
Contributions $593,675
55.7%
Program Services $447,325
42.0%
Investment Income $25,119
2.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,498,911
Total Liabilities $461,327
Net Assets $1,037,584
Compensation
Key Employees and Officers Compensation Related Other
Silviero Agazzi (Director) $0 $0 $0
Matthew Carlson (Director) $0 $0 $0
Paul Gardner (Director) $0 $0 $0
Madison Michael (Director) $0 $0 $0
Ivan Sayed (Director) $0 $0 $0
George Wanna (Director) $0 $0 $0
Steven Frank (Director) $0 $0 $0
Lee Zimmer (Director) $0 $0 $0
Gelareh Zadeh (Director) $0 $0 $0
Adam Zanation (Director) $0 $0 $0
John Golfinos (Secretary) $0 $0 $0
Thomas Roland (Director) $0 $0 $0
Jacques Morcos (President) $0 $0 $0
Carl Synderman (Past President) $0 $0 $0
James Evans (Vice President) $0 $0 $0
Ian Witterick (President Elect) $0 $0 $0
Ricardo Carrau (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$719,136
Expenses
$577,476
Net Income
$141,660
Net Assets
$710,097
Notable Sources of Revenue Percent of Total Revenue
Contributions $318,265
44.3%
Program Services $413,395
57.5%
Investment Income -$12,524
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,098,391
Total Liabilities $388,294
Net Assets $710,097
Compensation
Key Employees and Officers Compensation Related Other
Siviero Agazzi (Director) $0 $0 $0
Allan Vescan (Director) $0 $0 $0
Michael Link (Past President) $0 $0 $0
Carlos David (Director) $0 $0 $0
Ivan Sayed (Director) $0 $0 $0
James Liu (Director) $0 $0 $0
Steven Frank (Director) $0 $0 $0
Sandeep Samont (Director) $0 $0 $0
Michael Chicoine (Director) $0 $0 $0
Michael Kupferman (Director) $0 $0 $0
Vikram Prabhu (Director) $0 $0 $0
Thomas Roland (Director) $0 $0 $0
Jacques Morcos (President Elect) $0 $0 $0
Carl Synderman (President) $0 $0 $0
James Evans (Secretary) $0 $0 $0
Ian Witterick (Vice President) $0 $0 $0
Ricardo Carrau (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$589,806
Expenses
$591,122
Net Income
-$1,316
Net Assets
$568,437
Notable Sources of Revenue Percent of Total Revenue
Contributions $275,605
46.7%
Program Services $326,833
55.4%
Investment Income -$12,632
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $852,692
Total Liabilities $284,255
Net Assets $568,437

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$636,416
Expenses
$539,367
Net Income
$97,049
Net Assets
$569,753
Notable Sources of Revenue Percent of Total Revenue
Contributions $130,200
20.5%
Program Services $506,197
79.5%
Investment Income $19
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $736,958
Total Liabilities $167,205
Net Assets $569,753

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$569,269
Expenses
$476,821
Net Income
$92,448
Net Assets
$472,704
Notable Sources of Revenue Percent of Total Revenue
Contributions $118,508
20.8%
Program Services $450,747
79.2%
Investment Income $14
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $714,764
Total Liabilities $242,060
Net Assets $472,704

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$547,023
Expenses
$411,349
Net Income
$135,674
Net Assets
$380,256
Notable Sources of Revenue Percent of Total Revenue
Contributions $107,358
19.6%
Program Services $439,665
80.4%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $609,594
Total Liabilities $229,338
Net Assets $380,256

Document Links

Fiscal Year Ending Dec.
2010

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$165,715
Expenses
$134,346
Net Income
$31,369
Net Assets
$244,582
Notable Sources of Revenue Percent of Total Revenue
Contributions $90,647
54.7%
Program Services $74,975
45.2%
Investment Income $93
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $395,993
Total Liabilities $151,411
Net Assets $244,582

Document Links

Fiscal Year Ending Dec.
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2006

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2004

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2003

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2002

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2001

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

About This Data

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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