Wisconsin Neurological Society

  • Kimberly, WI
  • Tax exemption issued: Feb. 2000
  • EIN: 39-1642832

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: Mental Health, Crisis Intervention / Professional Societies, Associations (NTEE)

Donations to this organization are tax deductible.

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. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Organizations with gross receipts of less than $50,000 can file the form 990-N postcard filing, which doesn’t include financial details. All Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2024

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$81,609
Expenses
$52,558
Net Income
$29,051
Net Assets
$192,266
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,000
1.2%
Program Services $68,455
83.9%
Investment Income $4,368
5.4%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $198,103
Total Liabilities $5,837
Net Assets $192,266
Compensation
Key Employees and Officers Compensation Other
Eric Ostermann (Executive Director) $0 $0
Timothy Young Md (President) $0 $0
Dominic Fee Md (Immediate Past President) $0 $0
Aaron Struck Md (President-elect) $0 $0
Ahmed Obeidat Md (Vice President) $0 $0
Kathleen Shannon Md (Secretary/treasurer) $0 $0
Jessica Baker Md (Cme Director) $0 $0
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Document Links

990-EZ
Filed on Nov. 3, 2025

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$74,510
Expenses
$43,434
Net Income
$31,076
Net Assets
$163,215
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,000
1.3%
Program Services $64,945
87.2%
Investment Income $517
0.7%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $875
1.2%
Assets/Debt
Total Assets $167,280
Total Liabilities $4,065
Net Assets $163,215
Compensation
Key Employees and Officers Compensation Other
Dominic Fee Md (President) $0 $0
Timothy Young Md (President-elect) $0 $0
Donn Dexter Md (Immediate Past President) $0 $0
Aaron Struck Md (Vice President) $0 $0
Kathleen Shannon Md (Secretary/treasurer) $0 $0
Jessica Baker Md (Cme Director) $0 $0
Maggie Gruennert (Association Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on Nov. 14, 2024

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$82,901
Expenses
$51,030
Net Income
$31,871
Net Assets
$132,139
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,400
1.7%
Program Services $71,860
86.7%
Investment Income $93
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $250
0.3%
Assets/Debt
Total Assets $141,681
Total Liabilities $9,542
Net Assets $132,139
Compensation
Key Employees and Officers Compensation Other
Dominic Fee Md (President) $0 $0
Timothy Young Md (President-elect) $0 $0
Donn Dexter Md (Immediate Past President) $0 $0
Aaron Struck Md (Vice President) $0 $0
Kathleen Shannon Md (Secretary/treasurer) $0 $0
Jessica Baker Md (Cme Director) $0 $0
Maggie Gruennert (Association Director) $0 $0
Shanda Wenninger (Assistant Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on Oct. 17, 2023

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$38,331
Expenses
$31,030
Net Income
$7,301
Net Assets
$100,268
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,100
2.9%
Program Services $29,200
76.2%
Investment Income $18
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $350
0.9%
Assets/Debt
Total Assets $106,464
Total Liabilities $6,196
Net Assets $100,268
Compensation
Key Employees and Officers Compensation Other
Donn Dexter Md (President) $0 $0
Dominic Fee Md (President-elect) $0 $0
Douglas Dulli (Immediate Past President) $0 $0
Aaron Struck Md (Vice President) $0 $0
Timothy Young Md (Secretary/treasurer) $0 $0
Jennifer Connelly Md (Cme Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on May 27, 2022

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$26,624
Expenses
$21,937
Net Income
$4,687
Net Assets
$92,967
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $18,820
70.7%
Investment Income $29
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $98,749
Total Liabilities $5,782
Net Assets $92,967
Compensation
Key Employees and Officers Compensation Other
Donn Dexter Md (President) $0 $0
Dominic Fee Md (President-elect) $0 $0
Douglas Dulli Md (Immediate Past President) $0 $0
Aaron Struck Md (Vice President) $0 $0
Timothy Young Md (Secretary/treasurer) $0 $0
Jennifer Connelly Md (Cme Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on Oct. 4, 2021

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$51,833
Expenses
$32,132
Net Income
$19,701
Net Assets
$88,780
Notable Sources of Revenue Percent of Total Revenue
Contributions $124
0.2%
Program Services $40,445
78.0%
Investment Income $126
0.2%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $92,390
Total Liabilities $3,610
Net Assets $88,780
Compensation
Key Employees and Officers Compensation Other
Doug Dulli Md (President) $0 $0
Donn Dexter Md (President-elect) $0 $0
Rodrigo R Merino Md (Immediate Past President) $0 $0
Dominic Fee Md (Vice President) $0 $0
Aaron Struck Md (Secretary/treasurer) $0 $0
Jennifer Connelly Md (Cme Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on July 9, 2020

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$42,685
Expenses
$28,398
Net Income
$14,287
Net Assets
$68,579
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $31,710
74.3%
Investment Income $62
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $71,703
Total Liabilities $3,124
Net Assets $68,579
Compensation
Key Employees and Officers Compensation Other
Doug Dulli Md (President) $0 $0
Donn Dexter Md (President-elect) $0 $0
Rodrigo R Merino Md (Immediate Past President) $0 $0
Dominic Fee Md (Vice President) $0 $0
Aaron Struck Md (Secretary/treasurer) $0 $0
Jennifer Connelly Md (Cme Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on May 10, 2019

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2017

Gross receipts
Less than $50,000

Postcard filings do not ask for a specific revenue amount and provide no additional financial details.

Document Links

990-N

Postcard filing for an organization with gross receipts less than $50,000. These filings do not generate a downloadable form.

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$28,843
Expenses
$29,574
Net Income
-$731
Net Assets
$40,180
Notable Sources of Revenue Percent of Total Revenue
Contributions $2,100
7.3%
Program Services $17,230
59.7%
Investment Income $38
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $44,165
Total Liabilities $3,985
Net Assets $40,180
Compensation
Key Employees and Officers Compensation Other
Rodney Sorensen (Past President) $0 $0
Rodrigo Merino (President) $0 $0
Karen Blindauer (Secretary/treasurer) $0 $0
Doug Dulli (Cme Director) $0 $0
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Document Links

990-EZ
Filed on May 12, 2016

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$33,680
Expenses
$30,983
Net Income
$2,697
Net Assets
$40,911
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,775
5.3%
Program Services $20,950
62.2%
Investment Income $80
0.2%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $44,023
Total Liabilities $3,112
Net Assets $40,911
Compensation
Key Employees and Officers Compensation Other
Rodney Sorensen (President) $0 $0
Heather Stanko (Past President) $0 $0
Rodrigo Merino (President Elect) $0 $0
Jennifer Connelly (Vice President) $0 $0
Karen Blindauer (Secretary/treasurer) $0 $0
Doug Dulli (Cme Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on July 15, 2015

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$32,592
Expenses
$35,901
Net Income
-$3,309
Net Assets
$38,214
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,500
4.6%
Program Services $18,274
56.1%
Investment Income $93
0.3%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $39,028
Total Liabilities $814
Net Assets $38,214
Compensation
Key Employees and Officers Compensation Other
Rodney Sorensen (President) $0 $0
Heather Stanko (Past President) $0 $0
Rodrigo Merino (President Elect) $0 $0
Jennifer Connelly (Vice President) $0 $0
Karen Blindauer (Secretary/treasurer) $0 $0
Doug Dulli (Cme Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on June 2, 2014

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$28,746
Expenses
$37,831
Net Income
-$9,085
Net Assets
$41,523
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,515
5.3%
Program Services $15,753
54.8%
Investment Income $133
0.5%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $42,816
Total Liabilities $1,293
Net Assets $41,523

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$25,188
Expenses
$39,833
Net Income
-$14,645
Net Assets
$50,608
Notable Sources of Revenue Percent of Total Revenue
Contributions $10,280
40.8%
Program Services $14,327
56.9%
Investment Income $581
2.3%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $61,362
Total Liabilities $10,754
Net Assets $50,608

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

About This Data

What Is 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 financial information from tax returns processed by the IRS since the 2012 calendar years, as well as data extracted from digital filings. IRS summary data also includes limited 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 for 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?

Most organizations that have been recognized as tax exempt by the IRS have to file the 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 the 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," which does not contain financial details. Churches are not required to file Form 990.

Nonprofit Explorer has organizations that are claiming tax exemption in any of the 27 subsections of the 501(c) section of the tax code. Taxable trusts and private foundations that are required to file a form 990PF are also included.

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 Employer Identification Numbers 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.
  • 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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Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

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