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The Radiosurgery 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.

Category: Community Improvement, Capacity Building / Promotion of Business (NTEE)

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
$1.21M (2024)

Expenses
$1.06M (2024)

Total Assets
$1.99M (2024)

Total Liabilities
$137k (2024)

Source: Form 990 tax filings from 2012 to 2024

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 June
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,214,745
Expenses
$1,063,811
Net Income
$150,934
Net Assets
$1,852,187
Notable Sources of Revenue Percent of Total Revenue
Contributions $775,715
63.9%
Program Services $414,657
34.1%
Investment Income $24,373
2.0%
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 $148,371
13.9%
Professional Fundraising Fees $0
Other Salaries and Wages $72,664
6.8%
Assets/Debt
Total Assets $1,989,652
Total Liabilities $137,465
Net Assets $1,852,187
Compensation
Key Employees and Officers Compensation Related Other
Joanne Davis Phd (Executive Director) $148,371 $0 $0
Najeeb Mohideen Md (Chairperson Of The Board) $0 $0 $0
Ben Slotman Md Phd (President Of The Board) $0 $0 $0
John J Kresl Md Phd (President Elect) $0 $0 $0
Percy Lee (Treasurer) $0 $0 $0
Helen Shih Md (Secretary) $0 $0 $0
Grace Gwe Ya Kim Phd (Medical Physics Officer) $0 $0 $0
Pantaleo Romanelli Md (Neurosurgery Officer) $0 $0 $0
Stanley Benedict Phd (Board Member) $0 $0 $0
Iris Gibbs Md (Board Member) $0 $0 $0
Simon S Lo Md (Board Member) $0 $0 $0
Shankar Siva Md (Board Member) $0 $0 $0
Shalom Kalnicki Md (Emeritus Board Member) $0 $0 $0

Document Links

Fiscal Year Ending June
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,309,749
Expenses
$1,011,765
Net Income
$297,984
Net Assets
$1,666,616
Notable Sources of Revenue Percent of Total Revenue
Contributions $694,275
53.0%
Program Services $608,570
46.5%
Investment Income $6,904
0.5%
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 $134,070
13.3%
Professional Fundraising Fees $0
Other Salaries and Wages $106,055
10.5%
Assets/Debt
Total Assets $1,866,124
Total Liabilities $199,508
Net Assets $1,666,616
Compensation
Key Employees and Officers Compensation Related Other
Joanne Davis Phd (Executive Director) $100,000 $0 $0
Najeeb Mohideen Md (Chairman) $0 $0 $0
Ben Slotman Md Phd (President) $0 $0 $0
Michael Schulder Md (Secretary) $0 $0 $0
John J Kresl Md Phd (Treasurer) $0 $0 $0
Stan Benedict Phd (Board Member) $0 $0 $0
Shalom Kalnicki Md (Board Member) $0 $0 $0
Percy Lee (Board Member) $0 $0 $0
Simon S Lo Md (Board Member) $0 $0 $0
Helen Shih Md (Board Member) $0 $0 $0
Shankar Siva Md (Board Member) $0 $0 $0
Iris Gibbs Md (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending June
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,483,814
Expenses
$1,065,458
Net Income
$418,356
Net Assets
$1,367,476
Notable Sources of Revenue Percent of Total Revenue
Contributions $714,862
48.2%
Program Services $768,305
51.8%
Investment Income $647
0.0%
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 $100,000
9.4%
Professional Fundraising Fees $0
Other Salaries and Wages $135,529
12.7%
Assets/Debt
Total Assets $1,457,998
Total Liabilities $90,522
Net Assets $1,367,476
Compensation
Key Employees and Officers Compensation Related Other
Joanne Davis Phd (Executive Director) $100,000 $0 $100,000
Iris Gibbs (Chairperson Of The Board) $0 $0 $0
Ben Slotman Md Phd Fastro (President Elect) $0 $0 $0
Najeeb Mohideen Md (President) $0 $0 $0
Michael Schulder Md (Secretary) $0 $0 $0
John J Kresl Md (Treasurer) $0 $0 $0
Stan Benedict Phd (Board Member) $0 $0 $0
Shalom Kalnicki Md (Board Member) $0 $0 $0
Percy Lee (Board Member) $0 $0 $0
Simon S Lo Md Facr Fastr (Board Member) $0 $0 $0
Helen Shih Md (Board Member) $0 $0 $0
Shankar Siva Md (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending June
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$758,411
Expenses
$535,938
Net Income
$222,473
Net Assets
$949,120
Notable Sources of Revenue Percent of Total Revenue
Contributions $673,556
88.8%
Program Services $84,210
11.1%
Investment Income $645
0.1%
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 $100,000
18.7%
Professional Fundraising Fees $0
Other Salaries and Wages $75,264
14.0%
Assets/Debt
Total Assets $1,210,278
Total Liabilities $261,158
Net Assets $949,120
Compensation
Key Employees and Officers Compensation Related Other
Joanne Davis Phd (Executive Director) $100,000 $0 $0
Iris Gibbs (Chairperson Of The Board) $0 $0 $0
Najeeb Mohideen Md (President) $0 $0 $0
Michael Schulder Md (Secretary) $0 $0 $0
John J Kresl Md (Treasurer) $0 $0 $0
Stan Benedict Phd (Board Member) $0 $0 $0
Shalom Kalnicki Md (Board Member) $0 $0 $0
Ben Slotman Md Phd Facro (Board Member) $0 $0 $0
Simon S Lo Md Facr Fastr (Board Member) $0 $0 $0
Helen Shih Md (Board Member) $0 $0 $0
Shankar Siva Md (Board Member) $0 $0 $0
Jun Yang Md (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending June
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$628,017
Expenses
$676,989
Net Income
-$48,972
Net Assets
$726,647
Notable Sources of Revenue Percent of Total Revenue
Contributions $514,454
81.9%
Program Services $112,767
18.0%
Investment Income $796
0.1%
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 $100,000
14.8%
Professional Fundraising Fees $0
Other Salaries and Wages $130,649
19.3%
Assets/Debt
Total Assets $992,031
Total Liabilities $265,384
Net Assets $726,647
Compensation
Key Employees and Officers Compensation Related Other
Joanne Davis Phd (Executive Director) $100,000 $0 $0
Shalom Kalnicki Md (Chairman Of The Board) $0 $0 $0
Iris Gibbs (President) $0 $0 $0
Najeeb Mohideen Md (Secretary) $0 $0 $0
John J Kresl Md (Treasurer) $0 $0 $0
Jun Yang Md (Board Member) $0 $0 $0
Michael Schulder Md (Board Member) $0 $0 $0
Ben Slotman Md Phd Facro (Board Member) $0 $0 $0
Stan Benedict Phd (Board Member) $0 $0 $0
Simon S Lo Md Facr Fastr (Board Member) $0 $0 $0
Helen Shih Md (Board Member) $0 $0 $0
Shankar Siva Md (Board Member) $0 $0 $0
Peter Gerszten Md (Board Member) $0 $0 $0
Anand Mahadevan Md (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending June
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,121,585
Expenses
$1,143,777
Net Income
-$22,192
Net Assets
$775,619
Notable Sources of Revenue Percent of Total Revenue
Contributions $375,719
33.5%
Program Services $745,205
66.4%
Investment Income $661
0.1%
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 $100,000
8.7%
Professional Fundraising Fees $0
Other Salaries and Wages $135,264
11.8%
Assets/Debt
Total Assets $820,144
Total Liabilities $44,525
Net Assets $775,619
Compensation
Key Employees and Officers Compensation Related Other
Joanne Davis Phd (Executive Director) $100,000 $0 $0
Shalom Kalnicki Md (Chairman Of The Board) $0 $0 $0
Iris Gibbs (President) $0 $0 $0
Najeeb Mohideen Md (Secretary) $0 $0 $0
John J Kresl Md (Treasurer) $0 $0 $0
Jun Yang Md (Board Member) $0 $0 $0
Michael Schulder Md (Board Member) $0 $0 $0
Anand Mahadevan Md (Board Member) $0 $0 $0
Ben Slotman Md Phd Facro (Board Member) $0 $0 $0
Stan Benedict Phd (Board Member) $0 $0 $0
Peter Gerszten Md (Board Member) $0 $0 $0
Simon S Lo Md Facr Fastr (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending June
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,040,405
Expenses
$1,028,628
Net Income
$11,777
Net Assets
$797,811
Notable Sources of Revenue Percent of Total Revenue
Contributions $437,651
42.1%
Program Services $602,266
57.9%
Investment Income $488
0.0%
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 $100,000
9.7%
Professional Fundraising Fees $0
Other Salaries and Wages $135,264
13.1%
Assets/Debt
Total Assets $823,968
Total Liabilities $26,157
Net Assets $797,811
Compensation
Key Employees and Officers Compensation Related Other
Joanne Davis Phd (Executive Director) $100,000 $0 $0
Richard Bucholz Md (Chairman Of The Board) $0 $0 $0
Shalom Kalnicki Md (President) $0 $0 $0
Najeeb Mohideen Md (Secretary) $0 $0 $0
John J Kresl Md (Treasurer) $0 $0 $0
Jun Yang Md (Board Member) $0 $0 $0
Michael Schulder Md (Board Member) $0 $0 $0
Anand Mahadevan Md (Board Member) $0 $0 $0
Ben Slotman Md Phd Facro (Board Member) $0 $0 $0
Iris Gibbs (Board Member) $0 $0 $0
Stan Benedict Phd (Board Member) $0 $0 $0
Peter Gerszten Md (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending June
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$822,582
Expenses
$493,054
Net Income
$329,528
Net Assets
$791,719
Notable Sources of Revenue Percent of Total Revenue
Contributions $548,913
66.7%
Program Services $273,311
33.2%
Investment Income $358
0.0%
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 $100,000
20.3%
Professional Fundraising Fees $0
Other Salaries and Wages $106,187
21.5%
Assets/Debt
Total Assets $1,165,950
Total Liabilities $374,231
Net Assets $791,719
Compensation
Key Employees and Officers Compensation Related Other
Joanne Davis Phd (Executive Director) $100,000 $0 $0
Richard Bucholz Md (Chairman Of The Board) $0 $0 $0
Shalom Kalnicki Md (President) $0 $0 $0
Najeeb Mohideen Md (Secretary) $0 $0 $0
John J Kresl Md (Treasurer) $0 $0 $0
Jun Yang Md (Board Member) $0 $0 $0
Michael Schulder Md (Board Member) $0 $0 $0
Anand Mahadevan Md (Board Member) $0 $0 $0
Ben Slotman Md Phd Facro (Board Member) $0 $0 $0
Iris Gibbs (Board Member) $0 $0 $0
Stan Benedict Phd (Board Member) $0 $0 $0
Peter Gerszten Md (Board Member) $0 $0 $0
Hale Cagler Md (Board Member) $0 $0 $0
Andrew Gaya (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending June
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,139,972
Expenses
$1,058,213
Net Income
$81,759
Net Assets
$462,191
Notable Sources of Revenue Percent of Total Revenue
Contributions $422,128
37.0%
Program Services $717,576
62.9%
Investment Income $268
0.0%
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 $100,000
9.4%
Professional Fundraising Fees $0
Other Salaries and Wages $75,264
7.1%
Assets/Debt
Total Assets $761,222
Total Liabilities $299,031
Net Assets $462,191
Compensation
Key Employees and Officers Compensation Related Other
Joanne Davis Phd (Executive Director) $100,000 $0 $0
Anand Mahadevan Md (Chairman Of The Board) $0 $0 $0
Richard Bucholz Md (President) $0 $0 $0
Najeeb Mohideen Md (Secretary) $0 $0 $0
John J Kresl Md (Treasurer) $0 $0 $0
Shalom Kalnicki Md (President Elect) $0 $0 $0
Jun Yang Md (Board Member) $0 $0 $0
Hale Cagler Md (Board Member) $0 $0 $0
Andrew Gaya (Board Member) $0 $0 $0
Michael Schulder Md (Board Member) $0 $0 $0
Ben Slotman (Board Member) $0 $0 $0
Iris Gibbs (Board Member) $0 $0 $0
Douglas Minnich Md (Secretary) $0 $0 $0
Constance Mantz Md (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending June
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$586,858
Expenses
$568,698
Net Income
$18,160
Net Assets
$380,432
Notable Sources of Revenue Percent of Total Revenue
Contributions $526,461
89.7%
Program Services $59,962
10.2%
Investment Income $435
0.1%
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 $177,692
31.2%
Professional Fundraising Fees $0
Other Salaries and Wages $137,108
24.1%
Assets/Debt
Total Assets $448,922
Total Liabilities $68,490
Net Assets $380,432
Compensation
Key Employees and Officers Compensation Related Other
Kristine Gagliardi (Executive Director) $100,000 $0 $0
Joanne Davis Phd (Executive Director) $99,254 $0 $0
Anand Mahadevan Md (Chairman Of The Board) $0 $0 $0
Richard Bucholz Md (President) $0 $0 $0
Douglas Minnich Md (Secretary) $0 $0 $0
Constance Mantz Md (Board Member) $0 $0 $0
Jun Yang Md (Board Member) $0 $0 $0
Hale Cagler Md (Board Member) $0 $0 $0
Andrew Gaya (Board Member) $0 $0 $0
Michael Schulder Md (Board Member) $0 $0 $0
Najeeb Mohideen Md (Board Member) $0 $0 $0
Shalom Kalnicki Md (Board Member) $0 $0 $0
Alexander Muacevic Md (Chairman Of The Board) $0 $0 $0
Clinton A Medbery Iii (Board Member) $0 $0 $0
John J Kresl Md (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending June
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,095,589
Expenses
$960,993
Net Income
$134,596
Net Assets
$362,272
Notable Sources of Revenue Percent of Total Revenue
Contributions $453,175
41.4%
Program Services $642,364
58.6%
Investment Income $50
0.0%
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 $97,393
10.1%
Professional Fundraising Fees $0
Other Salaries and Wages $193,354
20.1%
Assets/Debt
Total Assets $478,291
Total Liabilities $116,019
Net Assets $362,272
Compensation
Key Employees and Officers Compensation Related Other
Kristine Gagliardi (Executive Director) $108,654 $12,493 $0
Alexander Muacevic Md (Chairman Of The Board) $0 $0 $0
Anand Mahadevan Md (President) $0 $0 $0
Richard Bucholz Md (President Elect) $0 $0 $0
Douglas Minnich Md (Secretary) $0 $0 $0
John J Kresl Md (Treasurer) $0 $0 $0
Paul Goldfarb Md (Board Member) $0 $0 $0
Constantine Mantz (Board Member) $0 $0 $0
Jun Yang Md (Board Member) $0 $0 $0
Clinton A Medbery Iii (Board Member) $0 $0 $0
Hale Cagler Md (Board Member) $0 $0 $0
Andrew Guya (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending June
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,049,570
Expenses
$981,912
Net Income
$67,658
Net Assets
$227,676
Notable Sources of Revenue Percent of Total Revenue
Contributions $387,576
36.9%
Program Services $661,994
63.1%
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 $121,726
12.4%
Professional Fundraising Fees $0
Other Salaries and Wages $163,046
16.6%
Assets/Debt
Total Assets $239,028
Total Liabilities $11,352
Net Assets $227,676

Document Links

Fiscal Year Ending June
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$848,347
Expenses
$1,041,340
Net Income
-$192,993
Net Assets
$180,018
Notable Sources of Revenue Percent of Total Revenue
Contributions $198,611
23.4%
Program Services $649,736
76.6%
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 $144,527
13.9%
Professional Fundraising Fees $0
Other Salaries and Wages $152,884
14.7%
Assets/Debt
Total Assets $180,018
Total Liabilities $0
Net Assets $180,018

Document Links

Fiscal Year Ending June
2011

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 June
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 June
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

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.

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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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  • 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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