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Western Neurosurgical Society

Organization summary

Type of Nonprofit

Designated as a Business leagues, chambers of commerce, real estate boards, etc, created for the improvement of business conditions.

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
$162k (2023)

Expenses
$14.2k (2023)

Total Assets
$571k (2023)

Total Liabilities
$0 (2023)

Source: Form 990 tax filings from 2011 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
$161,970
Expenses
$14,228
Net Income
$147,742
Net Assets
$570,764
Notable Sources of Revenue Percent of Total Revenue
Contributions $98,839
61.0%
Program Services $0
Investment Income $8,783
5.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $54,348
33.6%
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 $570,764
Total Liabilities $0
Net Assets $570,764
Compensation
Key Employees and Officers Compensation Related Other
Marco Lee (President) $0 $0 $0
Justin Dye (Secty/Treas) $0 $0 $0
Odette Harris (President Elect) $0 $0 $0
Andrew Little (Vice President) $0 $0 $0
Charles Nussbaum (Historian) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$48,426
Expenses
$15,265
Net Income
$33,161
Net Assets
$423,022
Notable Sources of Revenue Percent of Total Revenue
Contributions $47,127
97.3%
Program Services $0
Investment Income $13,254
27.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising -$11,955
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 $423,022
Total Liabilities $0
Net Assets $423,022
Compensation
Key Employees and Officers Compensation Related Other
Marco Lee (President Elect) $0 $0 $0
Justin Dye (Secty/Treas) $0 $0 $0
Jay K Morgan (President) $0 $0 $0
Charles Nussbaum (Historian) $0 $0 $0
Richard Chua (Vice President) $0 $0 $0
David T Pithethly (Past President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$72,541
Expenses
$10,755
Net Income
$61,786
Net Assets
$389,861
Notable Sources of Revenue Percent of Total Revenue
Contributions $31,550
43.5%
Program Services $0
Investment Income $13,294
18.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $29,394
40.5%
Sales of Assets -$1,697
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 $389,861
Total Liabilities $0
Net Assets $389,861
Compensation
Key Employees and Officers Compensation Related Other
Marco Lee (Secretary/Treas) $0 $0 $0
Javed Siddiqi (Vice President) $0 $0 $0
Marvin Bergsneider (Past President) $0 $0 $0
Jay K Morgan (President Elect) $0 $0 $0
Charles Nussbaum (Historian) $0 $0 $0
David T Pitkethly (President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$21,825
Expenses
$17,198
Net Income
$4,627
Net Assets
$328,075
Notable Sources of Revenue Percent of Total Revenue
Contributions $14,805
67.8%
Program Services $0
Investment Income $7,020
32.2%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $328,075
Total Liabilities $0
Net Assets $328,075
Compensation
Key Employees and Officers Compensation Other
Marco Lee (Secretary/Treas) $0 $0
Deborah Henry (Vice President) $0 $0
Marvin Bergsneider (President) $0 $0
Thomas Scully (Past President) $0 $0
Charles Nussbaum (Historian) $0 $0
David T Pitkethly (President Elect) $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$267,962
Expenses
$52,097
Net Income
$215,865
Net Assets
$323,448
Notable Sources of Revenue Percent of Total Revenue
Contributions $134,873
50.3%
Program Services $0
Investment Income $6,843
2.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $126,246
47.1%
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 $21,000
40.3%
Assets/Debt
Total Assets $323,448
Total Liabilities $0
Net Assets $323,448
Compensation
Key Employees and Officers Compensation Related Other
Marco Lee (Secretary/Treas) $0 $0 $0
Deborah Henry (Vice President) $0 $0 $0
Marvin Bergsneider (President) $0 $0 $0
Thomas Scully (Past President) $0 $0 $0
Charles Nussbaum (Historian) $0 $0 $0
David T Pitkethly (President Elect) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
-$67,828
Expenses
$36,405
Net Income
-$104,233
Net Assets
$107,583
Notable Sources of Revenue Percent of Total Revenue
Contributions $28,895
Program Services $0
Investment Income $2,940
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising -$97,833
Sales of Assets -$1,830
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $20,292
55.7%
Assets/Debt
Total Assets $107,583
Total Liabilities $0
Net Assets $107,583
Compensation
Key Employees and Officers Compensation Related Other
Marco Lee (Secretary/Treas) $0 $0 $0
Jay Morgan (Vice President) $0 $0 $0
Marvin Bergsneider (President Elect) $0 $0 $0
Thomas Scully (President) $0 $0 $0
Moustapha Abou Samra (Historian) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
-$5,404
Expenses
$39,681
Net Income
-$45,085
Net Assets
$211,816
Notable Sources of Revenue Percent of Total Revenue
Contributions $12,485
Program Services $0
Investment Income $2,190
Net Fundraising -$20,079
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $211,816
Total Liabilities $0
Net Assets $211,816
Compensation
Key Employees and Officers Compensation Other
Mark Vanefsky (Secretary/Treas) $0 $0
John H Mc Vicker (Vice President) $0 $0
Thomas Scully (President Elect) $0 $0
Martin E Weinand (President) $0 $0
Moustapha Abou Samra (Histoiran) $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$50,569
Expenses
$21,368
Net Income
$29,201
Net Assets
$256,901
Notable Sources of Revenue Percent of Total Revenue
Contributions $13,325
26.4%
Program Services $0
Investment Income $1,796
3.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $35,448
70.1%
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 $12,500
58.5%
Assets/Debt
Total Assets $256,901
Total Liabilities $0
Net Assets $256,901
Compensation
Key Employees and Officers Compensation Related Other
Mark Vanefsky (Secretary/Treas) $0 $0 $0
Odette Harris (Vice President) $0 $0 $0
Charles Nussbaum (President) $0 $0 $0
Martin E Weinand (President Elect) $0 $0 $0
Moustapha Abou Samra (Histoiran) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
-$9,951
Expenses
$40,899
Net Income
-$50,850
Net Assets
$227,700
Notable Sources of Revenue Percent of Total Revenue
Contributions $5,000
Program Services $0
Investment Income $2,630
Net Fundraising -$37,646
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $227,700
Total Liabilities $0
Net Assets $227,700
Compensation
Key Employees and Officers Compensation Other
Mark Vanefsky (Secretary/Treas) $0 $0
David T Pitkethly (Vice President) $0 $0
Linda M Liau (President) $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$50,127
Expenses
$16,743
Net Income
$33,384
Net Assets
$278,550
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $3,350
6.7%
Net Fundraising $25,157
50.2%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $278,550
Total Liabilities $0
Net Assets $278,550
Compensation
Key Employees and Officers Compensation Other
Deborah Henry (Secretary/Treas) $0 $0
Thomas Scully (Vice President) $0 $0
Gary Steinberg (President) $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$28,322
Expenses
$15,399
Net Income
$12,923
Net Assets
$245,166
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $3,123
11.0%
Net Fundraising $5,854
20.7%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $245,166
Total Liabilities $0
Net Assets $245,166
Compensation
Key Employees and Officers Compensation Other
Deborah Henry (Secretary/Treas) $0 $0
Marvin Bergsneider (Vice President) $0 $0
Richard Wohns (President) $0 $0
Charles Nussbaum (Past Sec/Treas) $0 $0

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$21,502
Expenses
$12,084
Net Income
$9,418
Net Assets
$232,243
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $3,978
18.5%
Net Fundraising -$1,138
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $232,243
Total Liabilities $0
Net Assets $232,243

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
-$4,673
Expenses
$19,813
Net Income
-$24,486
Net Assets
$222,825
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $3,603
Net Fundraising -$35,246
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $222,825
Total Liabilities $0
Net Assets $222,825

Document Links

Fiscal Year Ending Dec.
2010

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.
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.
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

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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