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International Radiosurgery Research Foundation

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 / Cancer Research (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$91.7k (2023)

Expenses
$50.8k (2023)

Total Assets
$836k (2023)

Total Liabilities
$29.1k (2023)

Years with missing data
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-PF
Revenue
$91,734
Expenses
$50,833
Net Income
$40,901
Net Assets
$807,302
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $91,250
99.5%
Interest Revenue $484
0.5%
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $30,522
60.0%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $836,355
Total Liabilities $29,053
Net Assets $807,302
Compensation
Key Employees and Officers Compensation Other
Douglas Kondziolka Md (Director) $0 $0
John Suh Md (Secretary/Tr) $0 $0
Anthony Kaufman Md (Director) $0 $0
L Dade Lunsford Md (Director) $0 $0
David Mathieu Md (Director) $0 $0
Rafael Rodriguez Mercado Md (Director) $0 $0
Jason Sheehan Md (Chairperson) $0 $0
John Y K Lee Md (Director) $0 $0
Veronica Chiang Md (Vice Chairpe) $0 $0
Steve Braunstein Md Phd (Director) $0 $0
Heyoung Mcbride Md (Director) $0 $0
Christopher Deibert Md (Director) $0 $0
John A Kalapurakal Md (Director) $0 $0
Michael Schulder Md (Director) $0 $0
James Mcinerney Md (Director) $0 $0
Christopher Cifarelli Md Phd (Director) $0 $0
Huaiche Wade Yang Md (Director) $0 $0
Roman Liscak Md (Director) $0 $0
Herwin Speckter Md (Director) $0 $0
Ronald E Warnick Md (Director) $0 $0
Wael Reda Md (Director) $0 $0
Joseph Weiner Md (Director) $0 $0
Daniel Trifiletti Md (Director) $0 $0
Carolina Benjamin Md (Director) $0 $0
Chad Rusthoven Md (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$73,750
Expenses
$138,013
Net Income
-$64,263
Net Assets
$766,401
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $73,750
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $134,812
97.7%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $786,543
Total Liabilities $20,142
Net Assets $766,401
Compensation
Key Employees and Officers Compensation Other
Douglas Kondziolka Md (Director) $0 $0
John Suh Md (Secretary/Tr) $0 $0
Anthony Kaufman Md (Director) $0 $0
L Dade Lunsford Md (Director) $0 $0
David Mathieu Md (Director) $0 $0
Rafael Rodriguez Mercado Md (Director) $0 $0
Jason Sheehan Md (Chairperson) $0 $0
John Y K Lee Md (Director) $0 $0
Veronica Chiang Md (Vice Chairpe) $0 $0
Steve Braunstein Md Phd (Director) $0 $0
Heyoung Mcbride Md (Director) $0 $0
Christopher Deibert Md (Director) $0 $0
John A Kalapurakal Md (Director) $0 $0
Michael Schulder Md (Director) $0 $0
James Mcinerney Md (Director) $0 $0
Christopher Cifarelli Md Phd (Director) $0 $0
Huaiche Wade Yang Md (Director) $0 $0
Roman Liscak Md (Director) $0 $0
Herwin Speckter Md (Director) $0 $0
Ronald E Warnick Md (Director) $0 $0
Wael Reda Md (Director) $0 $0
Joseph Weiner Md (Director) $0 $0
Daniel Trifiletti Md (Director) $0 $0
Carolina Benjamin Md (Director) $0 $0
Chad Rusthoven Md (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$74,500
Expenses
$35,243
Net Income
$39,257
Net Assets
$830,664
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $74,500
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $38,535
> 100%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $834,006
Total Liabilities $3,342
Net Assets $830,664
Compensation
Key Employees and Officers Compensation Other
Douglas Kondziolka Md (Director) $0 $0
John Suh Md (Secretary/Tr) $0 $0
Anthony Kaufman Md (Director) $0 $0
L Dade Lunsford Md (Director) $0 $0
David Mathieu Md (Director) $0 $0
Rafael Rodriguez Mercado Md (Director) $0 $0
Jason Sheehan Md (Chairperson) $0 $0
John Y K Lee Md (Director) $0 $0
Veronica Chiang Md (Vice Chairpe) $0 $0
Steve Braunstein Md Phd (Director) $0 $0
Heyoung Mcbride Md (Director) $0 $0
Christopher Deibert Md (Director) $0 $0
John A Kalapurakal Md (Director) $0 $0
Michael Schulder Md (Director) $0 $0
James Mcinerney Md (Director) $0 $0
Christopher Cifarelli Md Phd (Director) $0 $0
Huaiche Wade Yang Md (Director) $0 $0
Roman Liscak Md (Director) $0 $0
Herwin Speckter Md (Director) $0 $0
Ronald E Warnick Md (Director) $0 $0
Wael Reda Md (Director) $0 $0
Joseph Weiner Md (Director) $0 $0
Daniel Trifiletti Md (Director) $0 $0
Robert Starke Md (Director) $0 $0
Chad Rusthoven Md (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$79,545
Expenses
$33,733
Net Income
$45,812
Net Assets
$791,407
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $76,250
95.9%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $3,295
4.1%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $32,767
97.1%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $816,192
Total Liabilities $24,785
Net Assets $791,407
Compensation
Key Employees and Officers Compensation Other
Douglas Kondziolka Md (Director) $0 $0
John Suh Md (Secretary/Tr) $0 $0
Anthony Kaufman Md (Director) $0 $0
L Dade Lunsford Md (Director) $0 $0
David Mathieu Md (Director) $0 $0
Rafael Rodriguez Mercado Md (Director) $0 $0
Jason Sheehan Md (Chairperson) $0 $0
John Y K Lee Md (Director) $0 $0
Veronica Chiang Md (Vice Chairpe) $0 $0
Steve Braunstein Md Phd (Director) $0 $0
Heyoung Mcbride Md (Director) $0 $0
Christopher Deibert Md (Director) $0 $0
John A Kalapurakal Md (Director) $0 $0
Michael Schulder Md (Director) $0 $0
James Mcinerney Md (Director) $0 $0
Christopher Cifarelli Md Phd (Director) $0 $0
Huaiche Wade Yang Md (Director) $0 $0
Roman Liscak Md (Director) $0 $0
Herwin Speckter Md (Director) $0 $0
Ronald E Warnick Md (Director) $0 $0
Wael Reda Md (Director) $0 $0
Joseph Weiner Md (Director) $0 $0
Daniel Trifiletti Md (Director) $0 $0
Robert Starke Md (Director) $0 $0
Chad Rusthoven Md (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$352,500
Expenses
$21,371
Net Income
$331,129
Net Assets
$745,595
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $352,500
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $60,410
> 100%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $753,815
Total Liabilities $8,220
Net Assets $745,595
Compensation
Key Employees and Officers Compensation Other
Douglas Kondziolka Md (Director) $0 $0
Gene Barnett Md (Chairperson) $0 $0
Anthony Kaufman Md (Director) $0 $0
L Dade Lunsford Md (Past Chair) $0 $0
David Mathieu Md (Director) $0 $0
Rafael Rodriguez Mercado Md (Director) $0 $0
Jason Sheehan Md (Vice Chairpe) $0 $0
John Y K Lee Md (Director) $0 $0
Veronica Chiang Md (Secretary/Tr) $0 $0
Steve Braunstein Md Phd (Director) $0 $0
Heyoung Mcbride Md (Director) $0 $0
Christopher Deibert Md (Director) $0 $0
John A Kalapurakal Md (Director) $0 $0
Michael Schulder Md (Director) $0 $0
James Mcinerney Md (Director) $0 $0
Christopher Cifarelli Md Phd (Director) $0 $0
Huaiche Wade Yang Md (Director) $0 $0
Roman Liscak Md (Director) $0 $0
Herwin Speckter Md (Director) $0 $0
Ronald E Warnick Md (Director) $0 $0
Wael Reda Md (Director) $0 $0
Joseph Weiner Md (Director) $0 $0
Daniel Trifiletti Md (Director) $0 $0
Robert Starke Md (Director) $0 $0
Chad Rusthoven Md (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$75,250
Expenses
$80,627
Net Income
-$5,377
Net Assets
$414,466
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $75,250
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $91,421
> 100%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $437,873
Total Liabilities $23,407
Net Assets $414,466
Compensation
Key Employees and Officers Compensation Other
Douglas Kondziolka Md (Director) $0 $0
Gene Barnett Md (Chairperson) $0 $0
Anthony Kaufman Md (Director) $0 $0
L Dade Lunsford Md (Past Chair) $0 $0
David Mathieu Md (Director) $0 $0
Rafael Rodriguez Mercado Md (Director) $0 $0
Jason Sheehan Md (Deputy Chair) $0 $0
John Y K Lee Md (Director) $0 $0
Veronica Chiang Md (Secretary/Tr) $0 $0
Steve Braunstein Md Phd (Director) $0 $0
Heyoung Mcbride Md (Director) $0 $0
Christopher Deibert Md (Director) $0 $0
John A Kalapurakal Md (Director) $0 $0
Michael Schulder Md (Director) $0 $0
James Mcinerney Md (Director) $0 $0
Christopher Cifarelli Md Phd (Director) $0 $0
Huaiche Wade Yang Md (Director) $0 $0
Roman Liscak Md (Director) $0 $0
Piero Picozzi Md (Director) $0 $0
Herwin Speckter Md (Director) $0 $0
Jeffrey S Schweitzer Md (Director) $0 $0
Seluk Peker Md (Director) $0 $0
Ronald E Warnick Md (Director) $0 $0
Wael Reda Md (Director) $0 $0
Joseph Weiner Md (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2017

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.
2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$392,039
Expenses
$592,671
Net Income
-$200,632
Net Assets
$201,461
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $80,000
20.4%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $312,039
79.6%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $81,188
13.7%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $724,465
Total Liabilities $523,004
Net Assets $201,461
Compensation
Key Employees and Officers Compensation Other
Douglas Kondziolka Md (Director) $0 $0
Gene Barnett Md (Chairperson) $0 $0
Anthony Kaufman Md (Director) $0 $0
L Dade Lunsford Md (Director) $0 $0
David Mathieu Md (Director) $0 $0
Rafael Rodriguez Mercado Md (Director) $0 $0
Jason Sheehan Md (Deputy Chair) $0 $0
John Y K Lee Md (Director) $0 $0
Veronica Chiang Md (Secretary/Tr) $0 $0
Galerah Zadehmd Phd Frcsc (Director) $0 $0
Steve Braunstein Md Phd (Director) $0 $0
Heyoung Mcbride Md (Director) $0 $0
Igna Grills (Director) $0 $0
Shannon E Kahn Md (Director) $0 $0
John A Kalapurakal Md (Director) $0 $0
Mitchell Machtay Md (Director) $0 $0
Jonathan Knisely Md (Director) $0 $0
James Mcinerney Md (Director) $0 $0
Christopher Cifarelli Md Phd (Director) $0 $0
Anthony D'ambrosio Md (Director) $0 $0
Huaiche Wade Yang Md (Director) $0 $0
Roman Liscak Md (Director) $0 $0
Piero Picozzi Md (Director) $0 $0
Herwin Speckter Md (Director) $0 $0
Jeffrey S Schweitzer Md (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$229,217
Expenses
$15,040
Net Income
$214,177
Net Assets
$402,093
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $223,800
97.6%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $5,417
2.4%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $220,887
> 100%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $411,266
Total Liabilities $9,173
Net Assets $402,093
Compensation
Key Employees and Officers Compensation Other
Douglas Kondziolka Md (Deputy Chair) $0 $0
Gene Barnett Md (Director) $0 $0
Anthony Kaufman Md (Director) $0 $0
L Dade Lunsford Md (Chairperson) $0 $0
David Mathieu Md (Director) $0 $0
Rafael Rodriguez Mercado Md (Director) $0 $0
Jason Sheehan Md (Secretary/Tr) $0 $0
John Y K Lee Md (Director) $0 $0
Veronica Chiang Md (Director) $0 $0
Bruce Pollack Md (Director) $0 $0
Galerah Zadehmd Phd Frcsc (Director) $0 $0
Igor A Barani Md (Director) $0 $0
Heyoung Mcbride Md (Director) $0 $0
Igna Grills (Director) $0 $0
Costas G Hadjipanayis Md (Director) $0 $0
John A Kalapurakal Md (Director) $0 $0
Mitchell Machtay Md (Director) $0 $0
Jonathan Knisely Md (Director) $0 $0
James Mcinerney Md (Director) $0 $0
Christopher Cifarelli Md Phd (Director) $0 $0
Anthony D'ambrosio Md (Director) $0 $0
Huaiche Wade Yang Md (Director) $0 $0
Roman Liscak Md (Director) $0 $0
Piero Picozzi Md (Director) $0 $0
Herwin Speckter Md (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$591,000
Expenses
$580,106
Net Income
$10,894
Net Assets
$187,916
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $591,000
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $570,385
98.3%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $197,981
Total Liabilities $10,065
Net Assets $187,916

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$569,000
Expenses
$502,137
Net Income
$66,863
Net Assets
$177,022
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $569,000
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $502,422
> 100%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $177,517
Total Liabilities $495
Net Assets $177,022
Compensation
Key Employees and Officers Compensation Other
Douglas Kondziolka Md (Deputy Chair) $0 $0
Gene Barnett Md (Director) $0 $0
Anthony Kaufman Md (Director) $0 $0
L Dade Lunsford Md (Chairperson) $0 $0
David Mathieu Md (Director) $0 $0
Gail Rosseau Md (Director) $0 $0
Rafael Rodriguez Mercado Md (Director) $0 $0
Jason Sheehan Md (Secretary/Tr) $0 $0
John Y K Lee Md (Director) $0 $0
Veronica Chiang Md (Director) $0 $0
Bruce Pollock Md (Director) $0 $0
Galerah Zadehmd Phd Frcsc (Director) $0 $0
David Larson Md Phd (Director) $0 $0
Michael Mcdermott Md (Director) $0 $0
Patricia Sneed Md (Director) $0 $0
Heyoung Mcbride Md (Director) $0 $0
Daniel R Pieper Md (Director) $0 $0
Costas G Hadjipanayis Md (Director) $0 $0
John A Kalapurakal Md (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$32,000
Expenses
$11,077
Net Income
$20,923
Net Assets
$109,089
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $109,089
Total Liabilities $0
Net Assets $109,089

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$35,000
Expenses
$10,489
Net Income
$24,511
Net Assets
$88,166
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $88,166
Total Liabilities $0
Net Assets $88,166

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

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 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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