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California Neurology 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
$259k (2023)

Expenses
$239k (2023)

Total Assets
$154k (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
$258,994
Expenses
$238,956
Net Income
$20,038
Net Assets
$153,888
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $258,994
100%
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 $153,888
Total Liabilities $0
Net Assets $153,888
Compensation
Key Employees and Officers Compensation Related Other
Robert Weinmann Md (Past President) $0 $0 $0
Stella Legarda Md (President) $0 $0 $0
Robyn G Young Md Facp (Treasurer) $0 $0 $0
Sharon Yegiaian Md (Past President) $0 $0 $0
George Sarka Md (Secretary) $0 $0 $0
Johanna Rosenthal Md (Director) $0 $0 $0
Paula Ravin Md (Director) $0 $0 $0
Steven Holtz Md (Director) $0 $0 $0
Jeffery Klingman Md (President Elect) $0 $0 $0
Karitha Shanmugam Md (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$218,025
Expenses
$199,738
Net Income
$18,287
Net Assets
$133,850
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $218,025
100%
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 $1,000
0.5%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $133,850
Total Liabilities $0
Net Assets $133,850
Compensation
Key Employees and Officers Compensation Related Other
George Sarka Md (Secretary) $1,000 $0 $0
Robert Weinmann Md (President) $0 $0 $0
Stella Legarda Md (Vice President) $0 $0 $0
Robyn G Young Md Facp (Treasurer) $0 $0 $0
Sharon Yegiaian Md (Past President) $0 $0 $0
Johanna Rosenthal Md (Director) $0 $0 $0
Paula Ravin Md (Director) $0 $0 $0
Steven Holtz Md (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$168,745
Expenses
$188,853
Net Income
-$20,108
Net Assets
$115,563
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $165,275
97.9%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $115,563
Total Liabilities $0
Net Assets $115,563
Compensation
Key Employees and Officers Compensation Other
Robert Weinmann Md (President) $0 $0
Stella Legarda Md (Vice President) $0 $0
Robyn G Young Md Facp (Treasurer) $0 $0
Sharon Yegiaian Md (Past President) $0 $0
George Sarka Md (Secretary) $0 $0
Johanna Rosenthal Md (Director) $0 $0
Paula Ravin Md (Director) $0 $0
Steven Holtz Md (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$174,761
Expenses
$168,357
Net Income
$6,404
Net Assets
$137,838
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $170,188
97.4%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $138,338
Total Liabilities $500
Net Assets $137,838
Compensation
Key Employees and Officers Compensation Other
Sharon Yegiaian (President) $0 $0
Robyn G Young Md Facp (Treasurer) $0 $0
George Sarka (Secretary) $0 $0
Robert Weinmann Md (Legislative Chr) $0 $0
Stella Legarda Md (Director) $0 $0
Richard P Knudsen Md (Director) $0 $0
Johanna Rosenthal Md (Director) $0 $0
Marc Nuwer Md Phd (Director) $0 $0
Said Beydoun (Director) $0 $0
Paula Ravin Rothschild (Director) $0 $0
Robert Knowlton (Director) $0 $0
Michael Stein (Director) $0 $0
David Tong (Director) $0 $0
Steven Holtz (Director) $0 $0
Jeffrey Klingman (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$198,346
Expenses
$139,342
Net Income
$59,004
Net Assets
$129,022
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $194,249
97.9%
Investment Income $2
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $129,022
Total Liabilities $0
Net Assets $129,022
Compensation
Key Employees and Officers Compensation Other
Sharon Yegiaian (President) $0 $0
Robyn G Young Md Facp (Treasurer) $0 $0
George Sarka (Secretary) $0 $0
Robert Weinmann Md (Legislative Chr) $0 $0
Stella Legarda Md (Director) $0 $0
Richard P Knudsen Md (Director) $0 $0
Johanna Rosenthal Md (Director) $0 $0
Marc Nuwer Md Phd (Director) $0 $0
Said Beydoun (Director) $0 $0
Paula Ravin Rothschild (Director) $0 $0
Robert Knowlton (Director) $0 $0
Michael Stein (Director) $0 $0
David Tong (Director) $0 $0
Steven Holtz (Director) $0 $0
Jeffrey Klingman (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$199,883
Expenses
$158,885
Net Income
$40,998
Net Assets
$70,018
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $191,808
96.0%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $74,619
Total Liabilities $4,601
Net Assets $70,018
Compensation
Key Employees and Officers Compensation Other
Stephen J Cattolica (Executive Dir.) $20,000 $0
Erik Perkins Md Faan (President) $0 $0
Sharon Yegiaian Md (Vp / Pres Elect) $0 $0
Robyn G Young Md Facp (Treasurer) $0 $0
George Sarka Md Drph (Past President) $0 $0
Jeffrey R Levin Md (Secretary) $0 $0
Robert Weinmann Md (Legislative Chr) $0 $0
Stella Legarda Md (At Large) $0 $0
Richard P Knudsen Md (At Large) $0 $0
Susan Hansen Md (At Large) $0 $0
Les Dorfman Md (Emeritus) $0 $0
Rebecca Hanson Md (Emeritus) $0 $0
Johanna Rosenthal Md (At Large) $0 $0
Marc Nuwer Md Phd (At Large) $0 $0
William Preston Md (Emeritus) $0 $0
Ramu Thiagarajan Md (At Large) $0 $0
Jack Schim Md (Emeritus) $0 $0
Michael Stein Md (At Large) $0 $0
David Tong Md (At Large) $0 $0
William Denys Md (Emeritus) $0 $0
Steven Holtz Md (At Large) $0 $0
Jeffrey Klingman Md (At Large) $0 $0
James Tetrud Md Phd (At Large) $0 $0

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$125,217
Expenses
$141,406
Net Income
-$16,189
Net Assets
$29,020
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $110,387
88.2%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $29,459
Total Liabilities $439
Net Assets $29,020
Compensation
Key Employees and Officers Compensation Other
Steve Cattolica (Executive Dir.) $24,000 $0
Erik Perkins (President) $0 $0
Sharon Yegiaian (Vp / Pres Elect) $0 $0
Robyn Young (Treasurer/Vp) $0 $0
George Sarka (Past President) $0 $0
Neal Hermanowicz (At Large) $0 $0
Robert Weinmann (Leg Chair) $0 $0
Stella Legarda (At Large) $0 $0
Ashan Nusrat (Director) $0 $0
Susan Hansen (At Large) $0 $0
Les Dorfman (At Large) $0 $0
Rebecca Hanson (At Large) $0 $0
Christi Heck (At Large) $0 $0
Marc Nuwer (At Large) $0 $0
William Preston (At Large) $0 $0
Faisal Qazi (At Large) $0 $0
Jack Schim (At Large) $0 $0
Michael Stein (At Large) $0 $0
David Tong (At Large) $0 $0
Simon Zimnowodzki (At Large) $0 $0
Steven Holtz (At Large) $0 $0
Jeffrey Klingman (At Large) $0 $0
Jonathan Eskenazi (At Large) $0 $0
Cheryl Jay (At Large) $0 $0
Richard P Knudsen (At Large) $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$37,209
Expenses
$40,547
Net Income
-$3,338
Net Assets
$45,209
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $19,099
51.3%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $630
1.7%
Assets/Debt
Total Assets $45,209
Total Liabilities $0
Net Assets $45,209
Compensation
Key Employees and Officers Compensation Other
Steve Cattolica (Executive Dir.) $30,000 $0
George Sarka (President) $0 $0
Erik Perkins (Vp / Pres Elect) $0 $0
Robyn Young (Treasurer/Vp) $0 $0
Sharon Tegiaian (Director) $0 $0
Neal Hermanowicz (Director) $0 $0
Robert Weinmann (Director) $0 $0
Stella Legarda (Director) $0 $0
James Tetrud (Director) $0 $0
Susan Hansen (Consultant) $0 $0
Les Dorfman (Consultant) $0 $0
Rebecca Hanson (Consultant) $0 $0
Christi Heck (Consultant) $0 $0
Marc Nuwer (Consultant) $0 $0
William Preston (Consultant) $0 $0
Faisal Qazi (Consultant) $0 $0
Jack Schim (Consultant) $0 $0
Michael Stein (Consultant) $0 $0
David Tong (Consultant) $0 $0
Simon Zimnowodzki (Director) $0 $0
Steven Holtz (Consultant) $0 $0
Eric Denys (Consultant) $0 $0
Jonathan Eskenazi (Resident Member) $0 $0
Cheryl Jay (Consultant) $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$47,991
Expenses
$36,194
Net Income
$11,797
Net Assets
$48,547
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $29,866
62.2%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $225
0.5%
Assets/Debt
Total Assets $49,776
Total Liabilities $1,229
Net Assets $48,547
Compensation
Key Employees and Officers Compensation Other
Steve Cattolica (Executive Dir.) $30,000 $0
George Sarka (President) $0 $0
Erik Perkins (Vice President) $0 $0
Steven Holtz (Sec/Treasurer) $0 $0
Robyn Young (Past President) $0 $0
Neal Hermanowicz (Director) $0 $0
Robert Weinmann (Director) $0 $0
Stephen Forner (Director) $0 $0
James Tetrud (Director) $0 $0
Susan Hansen (Consultant) $0 $0
Les Dorfman (Consultant) $0 $0
Rebecca Hanson (Consultant) $0 $0
Christi Heck (Consultant) $0 $0
Marc Nuwer (Consultant) $0 $0
William Preston (Consultant) $0 $0
Faisal Qazi (Consultant) $0 $0
Jack Schim (Consultant) $0 $0
Michael Stein (Consultant) $0 $0
David Tong (Consultant) $0 $0
Sharon Yegiaian (Director) $0 $0
Eric Denys (Consultant) $0 $0
Jonathan Eskenazi (Resident Member) $0 $0
Cheryl Jay (Consultant) $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$44,228
Expenses
$43,259
Net Income
$969
Net Assets
$36,750
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $28,740
65.0%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $37,512
Total Liabilities $762
Net Assets $36,750
Compensation
Key Employees and Officers Compensation Other
Steve Cattolica (Executive Dir.) $9,500 $0
Robyn Young (President) $0 $0
George Sarka (Vice President) $0 $0
Steven Holtz (Sec/Treasurer) $0 $0
Erik Perkins (Director) $0 $0
Neal Hermanowicz (Director) $0 $0
Robert Weinmann (Director) $0 $0
Stephen Forner (Director) $0 $0
James Tetrud (Director) $0 $0
Susan Hansen (Director) $0 $0
Les Dorfman (Director) $0 $0
Rebecca Hanson (Director) $0 $0
Christi Heck (Director) $0 $0
Marc Nuwer (Director) $0 $0
William Preston (Director) $0 $0
Faisal Qazi (Director) $0 $0
Jack Schim (Director) $0 $0
Michael Stein (Director) $0 $0
David Tong (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$63,703
Expenses
$37,330
Net Income
$26,373
Net Assets
$35,781
Notable Sources of Revenue Percent of Total Revenue
Contributions $95
0.1%
Program Services $0
Investment Income $0
Net Fundraising $46,452
72.9%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $37,216
Total Liabilities $1,435
Net Assets $35,781

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$28,816
Expenses
$31,291
Net Income
-$2,475
Net Assets
$9,408
Notable Sources of Revenue Percent of Total Revenue
Contributions $10,000
34.7%
Program Services $0
Investment Income $1
0.0%
Net Fundraising -$3,669
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $10,792
Total Liabilities $1,384
Net Assets $9,408

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$18,966
Expenses
$27,683
Net Income
-$8,717
Net Assets
$11,883
Notable Sources of Revenue Percent of Total Revenue
Contributions $182
1.0%
Program Services $0
Investment Income $20,197
> 100%
Net Fundraising -$1,413
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $13,215
Total Liabilities $1,332
Net Assets $11,883

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.
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

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 »

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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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