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Peripheral Nerve 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: Diseases, Disorders, Medical Disciplines / Nerve, Muscle and Bone Diseases (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$1.76M (2023)

Expenses
$1.54M (2023)

Total Assets
$7.14M (2023)

Total Liabilities
$135k (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
$1,760,787
Expenses
$1,541,151
Net Income
$219,636
Net Assets
$7,001,279
Notable Sources of Revenue Percent of Total Revenue
Contributions $43,845
2.5%
Program Services $1,481,182
84.1%
Investment Income $127,925
7.3%
Bond Proceeds $0
Royalties $54,715
3.1%
Rental Property Income $0
Net Fundraising $0
Sales of Assets $52,920
3.0%
Net Inventory Sales $0
Other Revenue $200
0.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $7,136,679
Total Liabilities $135,400
Net Assets $7,001,279
Compensation
Key Employees and Officers Compensation Related Other
Charlotte Sumner Md (President) $0 $0 $0
Alessandra Bolino Phd (President Elect) $0 $0 $0
Michael Polydefkis Md Mhs (Secretary/Treasurer) $0 $0 $0
Richard Lewis Md (Immediate Past President) $0 $0 $0
David Cornblath Md (Director) $0 $0 $0
Daniela Maria Menichella Md Phd (Director) $0 $0 $0
Luis Querol Md Phd (Director) $0 $0 $0
Stefano Previtali Md Phd (Director) $0 $0 $0
Peter Van Den Bergh Md Phd Fean (Director) $0 $0 $0
Claudia Sommer Md (Director) $0 $0 $0
Allison Kindseth (Executive Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,356,001
Expenses
$1,131,388
Net Income
$224,613
Net Assets
$6,080,158
Notable Sources of Revenue Percent of Total Revenue
Contributions $134,468
9.9%
Program Services $1,072,363
79.1%
Investment Income $105,215
7.8%
Bond Proceeds $0
Royalties $49,174
3.6%
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$5,219
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 $6,134,599
Total Liabilities $54,441
Net Assets $6,080,158
Compensation
Key Employees and Officers Compensation Related Other
Richard Lewis Md (President) $0 $0 $0
Laura Feltri Md (President Elect) $0 $0 $0
Michael Polydefkis Md Mhs (Secretary/Treasurer) $0 $0 $0
Pieter Van Doorn Md Phd (Immediate Past President) $0 $0 $0
Ahmet Hoke Md Phd (Board Member) $0 $0 $0
Stefano C Previtali Md Phd (Board Member) $0 $0 $0
Claudia Sommer Md Phd (Board Member) $0 $0 $0
Charlotte Sumner Md (Board Member) $0 $0 $0
Peter Van Den Bergh Md Phd (Board Member) $0 $0 $0
Hugh Willison Md Phd (Board Member) $0 $0 $0
Allison Kindseth (Executive Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,135,903
Expenses
$508,116
Net Income
$627,787
Net Assets
$6,732,556
Notable Sources of Revenue Percent of Total Revenue
Contributions $115,355
10.2%
Program Services $633,983
55.8%
Investment Income $79,517
7.0%
Bond Proceeds $0
Royalties $48,004
4.2%
Rental Property Income $0
Net Fundraising $0
Sales of Assets $259,044
22.8%
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 $6,858,410
Total Liabilities $125,854
Net Assets $6,732,556
Compensation
Key Employees and Officers Compensation Related Other
Richard Lewis Md (President) $0 $0 $0
Laura Feltri Md (President Elect) $0 $0 $0
Michael Polydefkis Md Mhs (Secretary Treasurer) $0 $0 $0
Pieter Van Doorn Md Phd (Immediate Past President) $0 $0 $0
Ahmet Hoke Md Phd (Board Member) $0 $0 $0
Stefano C Previtali Md Phd (Board Member) $0 $0 $0
Claudia Sommer Md Phd (Board Member) $0 $0 $0
Charlotte Sumner Md (Board Member) $0 $0 $0
Peter Van Den Bergh Md Phd (Board Member) $0 $0 $0
Hugh Willison Md Phd (Board Member) $0 $0 $0
Allison Kindseth (Executive Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$668,318
Expenses
$416,515
Net Income
$251,803
Net Assets
$5,524,740
Notable Sources of Revenue Percent of Total Revenue
Contributions $102,239
15.3%
Program Services $349,719
52.3%
Investment Income $62,671
9.4%
Bond Proceeds $0
Royalties $45,249
6.8%
Rental Property Income $0
Net Fundraising $0
Sales of Assets $108,440
16.2%
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 $5,822,481
Total Liabilities $297,741
Net Assets $5,524,740
Compensation
Key Employees and Officers Compensation Related Other
Steven S Scherer Md Phd (Immediate Past President) $0 $0 $0
Pieter Van Doorn Md (President) $0 $0 $0
Richard Lewis Md (President Elect) $0 $0 $0
Michael Polydefkis Md Mhs (Secretary Treasurer) $0 $0 $0
Ahmet Hoke Phd (Board Member) $0 $0 $0
Satoshi Kuwabara Md (Board Member) $0 $0 $0
Ingemar Merkies Md (Board Member) $0 $0 $0
Kazim Sheikh Md (Board Member) $0 $0 $0
Charlotte Sumner Md (Board Member) $0 $0 $0
Hugh Willison Md Phd (Board Member) $0 $0 $0
Allison Kindseth (Executive Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,805,477
Expenses
$948,016
Net Income
$857,461
Net Assets
$4,876,882
Notable Sources of Revenue Percent of Total Revenue
Contributions $91,302
5.1%
Program Services $1,535,257
85.0%
Investment Income $69,097
3.8%
Bond Proceeds $0
Royalties $86,059
4.8%
Rental Property Income $0
Net Fundraising $0
Sales of Assets $23,762
1.3%
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 $5,094,055
Total Liabilities $217,173
Net Assets $4,876,882
Compensation
Key Employees and Officers Compensation Related Other
Steven S Scherer Md (Immediate Past President) $0 $0 $0
Pieter Van Doorn Md (President) $0 $0 $0
Richard Lewis Md (President Elect) $0 $0 $0
Michael Polydefkis Md (Secretary Treasurer) $0 $0 $0
Satoshi Kuwabara Md (Board Member) $0 $0 $0
Ingemar Merkies Md Phd (Board Member) $0 $0 $0
Kasim Sheikh Md (Board Member) $0 $0 $0
Ahmet Hoke Phd (Board Member) $0 $0 $0
Charlotte Sumner Md (Board Member) $0 $0 $0
Hugh Willison Md (Board Member) $0 $0 $0
Allison Kindseth (Executive Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,233,886
Expenses
$766,985
Net Income
$466,901
Net Assets
$3,456,448
Notable Sources of Revenue Percent of Total Revenue
Contributions $612,657
49.7%
Program Services $353,978
28.7%
Investment Income $57,243
4.6%
Bond Proceeds $0
Royalties $53,348
4.3%
Rental Property Income $0
Net Fundraising $0
Sales of Assets $156,660
12.7%
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 $3,510,014
Total Liabilities $53,566
Net Assets $3,456,448
Compensation
Key Employees and Officers Compensation Related Other
Steven S Scherer (President) $0 $0 $0
Pieter Van Doorn (Vice President) $0 $0 $0
Michael Polydefkis (Secretary Treasurer) $0 $0 $0
Mary Margaret Reilly (Past President) $0 $0 $0
Dr David Adams (Board Member) $0 $0 $0
Alessandra Bolino (Board Member) $0 $0 $0
Chiara Briani (Board Member) $0 $0 $0
Satoshi Kuwabara Md (Board Member) $0 $0 $0
Ingemar Sj Merkies (Board Member) $0 $0 $0
Kazim Sheikh (Board Member) $0 $0 $0
Allison Kindseth (Executive Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,266,719
Expenses
$789,111
Net Income
$477,608
Net Assets
$3,267,056
Notable Sources of Revenue Percent of Total Revenue
Contributions $719,983
56.8%
Program Services $442,592
34.9%
Investment Income $57,412
4.5%
Bond Proceeds $0
Royalties $46,583
3.7%
Rental Property Income $0
Net Fundraising $0
Sales of Assets $149
0.0%
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 $3,278,166
Total Liabilities $11,110
Net Assets $3,267,056
Compensation
Key Employees and Officers Compensation Related Other
Steven S Scherer (President) $0 $0 $0
Pieter Van Doorn (Vice President) $0 $0 $0
Michael Polydefkis (Secretary Treasurer) $0 $0 $0
Mary Margaret Reilly (Past President) $0 $0 $0
Dr David R Cornblath (Board Member) $0 $0 $0
Alexander Rossor (Board Member) $0 $0 $0
Chiara Briani (Board Member) $0 $0 $0
Alessandra Bolino (Board Member) $0 $0 $0
David Pareyson (Board Member) $0 $0 $0
Ingemar Sj Merkies (Board Member) $0 $0 $0
Kazim Sheikh (Board Member) $0 $0 $0
Satoshi Kuwabara Md (Board Member) $0 $0 $0
Janel Fick (Executive Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$698,204
Expenses
$538,318
Net Income
$159,886
Net Assets
$2,416,238
Notable Sources of Revenue Percent of Total Revenue
Contributions $350,276
50.2%
Program Services $240,885
34.5%
Investment Income $45,552
6.5%
Bond Proceeds $0
Royalties $50,425
7.2%
Rental Property Income $0
Net Fundraising $0
Sales of Assets $11,066
1.6%
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 $2,479,238
Total Liabilities $63,000
Net Assets $2,416,238
Compensation
Key Employees and Officers Compensation Related Other
Mary Reilly (President) $0 $0 $0
Steven S Scherer (President Elect) $0 $0 $0
David R Cornblath (Secretary/Treasurer) $0 $0 $0
Michael Polydefkis (Asst. Secretary/Treasurer) $0 $0 $0
David Adams (Board Member) $0 $0 $0
Alessandra Bolino (Board Member) $0 $0 $0
Chiara Briani (Board Member) $0 $0 $0
Christopher Klein (Board Member) $0 $0 $0
Michael Pt Lunn (Board Member) $0 $0 $0
Davide Pareyson (Board Member) $0 $0 $0
Nobuhiro Yuki (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$891,844
Expenses
$655,524
Net Income
$236,320
Net Assets
$2,101,336
Notable Sources of Revenue Percent of Total Revenue
Contributions $464,393
52.1%
Program Services $380,778
42.7%
Investment Income $46,673
5.2%
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 $2,101,369
Total Liabilities $33
Net Assets $2,101,336
Compensation
Key Employees and Officers Compensation Related Other
Mary Reilly (President) $0 $0 $0
Steven S Scherer (President Elect) $0 $0 $0
David R Cornblath (Secretary/Treasurer) $0 $0 $0
Miscael Polydefkis (Assistant Secretary/Treasurer) $0 $0 $0
David Adams (Board Member) $0 $0 $0
Allessandra Bolino (Board Member) $0 $0 $0
Chiara Briani (Board Member) $0 $0 $0
Christopher Klein (Board Member) $0 $0 $0
Michael Pt Lunn (Board Member) $0 $0 $0
David Pareyson (Board Member) $0 $0 $0
Nobuhiro Yuki (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$556,830
Expenses
$476,209
Net Income
$80,621
Net Assets
$1,906,919
Notable Sources of Revenue Percent of Total Revenue
Contributions $289,248
51.9%
Program Services $127,250
22.9%
Investment Income $41,641
7.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $98,691
17.7%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,906,919
Total Liabilities $0
Net Assets $1,906,919
Compensation
Key Employees and Officers Compensation Related Other
Michael E Shy (President) $0 $0 $0
David R Cornblath (Secretary/Treas) $0 $0 $0
Eduardo Nobile Orazio (Past President) $0 $0 $0
Mary M Reilly (President Elect) $0 $0 $0
Guido Cavaletti (Board Member) $0 $0 $0
Hans Peter Hartung (Board Member) $0 $0 $0
Christopher Klein (Board Member) $0 $0 $0
Michael Pt Lunn (Board Member) $0 $0 $0
Davide Pareyson (Board Member) $0 $0 $0
Pieter A Von Doorn (Board Member) $0 $0 $0
Nobuhiro Yuki (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$701,290
Expenses
$190,124
Net Income
$511,166
Net Assets
$1,823,933
Notable Sources of Revenue Percent of Total Revenue
Contributions $117,850
16.8%
Program Services $364,185
51.9%
Investment Income $29,881
4.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $189,374
27.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,823,933
Total Liabilities $0
Net Assets $1,823,933
Compensation
Key Employees and Officers Compensation Related Other
Michael E Shy (President) $0 $0 $0
Mary M Reilly (Pres Elect) $0 $0 $0
David R Cornblath (Sec/Treasurer) $0 $0 $0
Eduardo Nobile Orazio (Past Pres) $0 $0 $0
Guido Cavaletti (Board Member) $0 $0 $0
Hans Peter Hartung (Board Member) $0 $0 $0
Christopher Klein (Board Member) $0 $0 $0
Michael Pt Lunn (Board Member) $0 $0 $0
Davide Pareyson (Board Member) $0 $0 $0
Pieter A Von Doorn (Board Member) $0 $0 $0
Nobuhiro Yuki (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$391,648
Expenses
$245,848
Net Income
$145,800
Net Assets
$1,312,767
Notable Sources of Revenue Percent of Total Revenue
Contributions $194,674
49.7%
Program Services $131,260
33.5%
Investment Income $26,174
6.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $39,540
10.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,312,767
Total Liabilities $0
Net Assets $1,312,767

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$617,680
Expenses
$307,738
Net Income
$309,942
Net Assets
$1,186,778
Notable Sources of Revenue Percent of Total Revenue
Contributions $374,245
60.6%
Program Services $223,360
36.2%
Investment Income $13,817
2.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $6,258
1.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,187,022
Total Liabilities $244
Net Assets $1,186,778

Document Links

Fiscal Year Ending Dec.
2010

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$361,002
Expenses
$283,407
Net Income
$77,595
Net Assets
$874,336
Notable Sources of Revenue Percent of Total Revenue
Contributions $204,325
56.6%
Program Services $100,400
27.8%
Investment Income $11,372
3.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $44,905
12.4%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $874,411
Total Liabilities $75
Net Assets $874,336

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.

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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.
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  • 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.
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  • 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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