Neurosurgery Foundation Inc

Providence, RI
Tax-exempt since Nov. 1986
EIN: 05-0414462

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Type of Nonprofit

Designated as a 501(c)(3) 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 / Neurology, Neuroscience (NTEE)

Donations to this organization are tax deductible.

Revenue

$131k (2024)

Expenses

$136k (2024)

Total Assets

$1.66M (2024)

Total Liabilities

$68.4k (2024)

Source: Form 990 tax filings from 2011 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 Sept.
2024

Revenue

$131,106

Expenses

$136,110

Net Income

-$5,004

Net Assets

$1,589,857

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$37,443	28.6%
Sales of Assets	$93,663	71.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$71,841	52.8%
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	$1,658,244
Total Liabilities	$68,387
Net Assets	$1,589,857

Compensation

Key Employees and Officers	Compensation	Other
Ziya L Gokaslan Md Faans Fac (President)	$0	$0
Curtis E Doberstein Md (Vice President)	$0	$0
Roselee Rego (Treasurer)	$0	$0
Adetokunbo Oyelese Md (Secretary)	$0	$0

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990-PF

Filed on Aug. 15, 2025

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending Sept.
2023

Revenue

$69,081

Expenses

$167,116

Net Income

-$98,035

Net Assets

$1,594,861

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$33,636	48.7%
Sales of Assets	$35,445	51.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$99,615	59.6%
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	$1,609,998
Total Liabilities	$15,137
Net Assets	$1,594,861

Compensation

Key Employees and Officers	Compensation	Other
Ziya L Gokaslan Md Faans Fac (President)	$0	$0
Curtis E Doberstein Md (Vice President)	$0	$0
Mustafa Mazlumoglu (Treasurer)	$0	$0
Adetokunbo Oyelese Md (Director)	$0	$0

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990-PF

Filed on Aug. 14, 2024

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending Sept.
2022

Revenue

$124,148

Expenses

$143,867

Net Income

-$19,719

Net Assets

$1,692,896

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$38,299	30.8%
Sales of Assets	$85,849	69.2%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$74,490	51.8%
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	$1,733,925
Total Liabilities	$41,029
Net Assets	$1,692,896

Compensation

Key Employees and Officers	Compensation	Other
Ziya L Gokaslan Md Faans Fac (President)	$0	$0
Curtis E Doberstein Md (Vice President)	$0	$0
Mustafa Mazlumoglu (Treasurer)	$0	$0
Adetokunbo Oyelese Md (Director)	$0	$0

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990-PF

Filed on Aug. 15, 2023

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending Sept.
2021

Revenue

$151,061

Expenses

$123,604

Net Income

$27,457

Net Assets

$1,712,615

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$32,701	21.6%
Sales of Assets	$118,360	78.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$24,000	19.4%
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	$1,745,183
Total Liabilities	$32,568
Net Assets	$1,712,615

Compensation

Key Employees and Officers	Compensation	Other
Ziya L Gokaslan Md Faans Fac (President)	$0	$0
Curtis E Doberstein Md (Vice President)	$0	$0
Mustafa Mazlumoglu (Treasurer)	$0	$0
Adetokunbo Oyelese Md (Director)	$0	$0
John B Murphy Md (Director)	$0	$0

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990-PF

Filed on Aug. 15, 2022

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending Sept.
2020

Revenue

$79,037

Expenses

$128,830

Net Income

-$49,793

Net Assets

$1,851,861

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$35,630	45.1%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$43,407	54.9%
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	$1,856,300
Total Liabilities	$4,439
Net Assets	$1,851,861

Compensation

Key Employees and Officers	Compensation	Related	Other
Ziya L Gokaslan Md Faans Facs (President)	$0	$0	$0
Curtis E Doberstein Md (Vice President)	$0	$0	$0
Mustafa Mazlumoglu (Treasurer)	$0	$0	$0
Adetokunbo Oyelese Md (Director)	$0	$0	$0
John B Murphy Md (Director)	$0	$0	$0

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990

Filed on Aug. 16, 2021

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

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XML

Fiscal Year Ending Sept.
2019

Revenue

$103,214

Expenses

$200,166

Net Income

-$96,952

Net Assets

$1,839,964

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$0
Investment Income	$39,741	38.5%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$63,473	61.5%
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	$1,848,011
Total Liabilities	$8,047
Net Assets	$1,839,964

Compensation

Key Employees and Officers	Compensation	Related	Other
Ziya L Gokaslan Md Faans Facs (President)	$0	$0	$0
Curtis E Doberstein Md (Vice President)	$0	$0	$0
Mustafa Mazlumoglu (Treasurer)	$0	$0	$0
Adetokunbo Oyelese Md (Director)	$0	$0	$0
John B Murphy Md (Director)	$0	$0	$0

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990

Filed on Jan. 27, 2021

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

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Fiscal Year Ending Sept.
2018

Revenue

$100,482

Expenses

$168,059

Net Income

-$67,577

Net Assets

$1,970,431

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$20,906	20.8%
Investment Income	$37,737	37.6%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$41,839	41.6%
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	$1,970,431
Total Liabilities	$0
Net Assets	$1,970,431

Compensation

Key Employees and Officers	Compensation	Related	Other
Ziya L Gokaslan Md Faans Facs (President)	$0	$0	$0
Curtis E Doberstein Md (Vice President)	$0	$0	$0
Adetokunbo A Oyelese Md (Treasurer)	$0	$0	$0
John B Murphy Md (Director)	$0	$0	$0
Glenn Tung Md (Director)	$0	$0	$0
Mustafa Mazlumoglu (Director)	$0	$0	$0

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990

Filed on Aug. 15, 2019

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

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Fiscal Year Ending Sept.
2017

Revenue

$92,565

Expenses

$155,225

Net Income

-$62,660

Net Assets

$2,026,429

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$3,086	3.3%
Investment Income	$42,369	45.8%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$47,110	50.9%
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	$2,237,822
Total Liabilities	$211,393
Net Assets	$2,026,429

Compensation

Key Employees and Officers	Compensation	Related	Other
Ziya L Gokaslan Md Faans Facs (President)	$0	$0	$0
Curtis E Doberstein Md (Vice President)	$0	$0	$0
Adetokunbo A Oyelese Md (Treasurer)	$0	$0	$0
John B Murphy Md (Director)	$0	$0	$0
Glenn Tung Md (Director)	$0	$0	$0

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990

Filed on Aug. 14, 2018

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

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Fiscal Year Ending Sept.
2016

Revenue

$374,603

Expenses

$547,076

Net Income

-$172,473

Net Assets

$2,037,934

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$1,500	0.4%
Program Services	$319,017	85.2%
Investment Income	$30,689	8.2%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$23,397	6.2%
Net Inventory Sales	$0
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$250,085	45.7%

Assets/Debt
Total Assets	$2,277,611
Total Liabilities	$239,677
Net Assets	$2,037,934

Compensation

Key Employees and Officers	Compensation	Related	Other
Ziya L Gokaslan Md Faans Facs (President)	$0	$0	$0
Curtis E Doberstein Md (Vice President)	$0	$0	$0
Mustafa F Mazlumoglu (Secretary)	$0	$0	$0
Adetokunbo A Oyelese Md (Treasurer)	$0	$0	$0
John B Murphy Md (Director)	$0	$0	$0
Glenn Tung Md (Director)	$0	$0	$0

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990

Filed on Aug. 15, 2017

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

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Fiscal Year Ending Sept.
2015

Revenue

$3,215,386

Expenses

$3,187,156

Net Income

$28,230

Net Assets

$2,173,608

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$824,526	25.6%
Program Services	$2,357,205	73.3%
Investment Income	$33,655	1.0%
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	$615,334	19.3%

Assets/Debt
Total Assets	$2,304,107
Total Liabilities	$130,499
Net Assets	$2,173,608

Compensation

Key Employees and Officers	Compensation	Related	Other
Ziya L Gokaslan Md Faans Facs (President)	$0	$0	$0
Curtis E Doberstein Md (Vice President)	$0	$0	$0
Mustafa F Mazlumoglu (Secretary)	$0	$0	$0
Adetokunbo A Oyelese Md (Treasurer)	$0	$0	$0
John B Murphy Md (Director)	$0	$0	$0
Glenn Tung Md (Director)	$0	$0	$0

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990

Filed on Aug. 15, 2016

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

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Fiscal Year Ending Sept.
2014

Revenue

$5,732,551

Expenses

$5,686,474

Net Income

$46,077

Net Assets

$2,185,420

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$935,011	16.3%
Program Services	$4,767,545	83.2%
Investment Income	$21,778	0.4%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$8,217	0.1%

Notable Expenses		Percent of Total Expenses
Executive Compensation	$3,559,105	62.6%
Professional Fundraising Fees	$0
Other Salaries and Wages	$683,942	12.0%

Assets/Debt
Total Assets	$2,448,091
Total Liabilities	$262,671
Net Assets	$2,185,420

Compensation

Key Employees and Officers	Compensation	Related	Other
Curtis E Doberstein Md (Vice Pres/Interim Pres/Dir)	$1,250,000	$0	$57,870
Adetokunbo A Oyelese Md (Treasurer / Director)	$750,000	$0	$50,620
Deus Cielo Md (Physician)	$700,000	$0	$49,895
Petra Klinge Md (Physician)	$450,000	$0	$45,310
Glenn Tung Md (Director)	$0	$0	$0
John B Murphy Md (Director)	$0	$0	$0
Ellen T Matesanz Mha Mba (Secretary/Director)	$0	$0	$0

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990

Filed on Aug. 13, 2015

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

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Fiscal Year Ending Sept.
2013

Revenue

$5,999,046

Expenses

$6,421,483

Net Income

-$422,437

Net Assets

$2,084,654

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$1,301,707	21.7%
Program Services	$4,258,262	71.0%
Investment Income	$15,110	0.3%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$423,967	7.1%

Notable Expenses		Percent of Total Expenses
Executive Compensation	$3,211,000	50.0%
Professional Fundraising Fees	$0
Other Salaries and Wages	$889,671	13.9%

Assets/Debt
Total Assets	$2,454,832
Total Liabilities	$370,178
Net Assets	$2,084,654

990

Filed on Sept. 23, 2014

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

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Fiscal Year Ending Sept.
2012

Revenue

$4,243,508

Expenses

$4,413,146

Net Income

-$169,638

Net Assets

$2,410,083

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$287,026	6.8%
Program Services	$3,932,104	92.7%
Investment Income	$19,482	0.5%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$4,896	0.1%

Notable Expenses		Percent of Total Expenses
Executive Compensation	$552,275	12.5%
Professional Fundraising Fees	$0
Other Salaries and Wages	$1,471,863	33.4%

Assets/Debt
Total Assets	$3,384,216
Total Liabilities	$974,133
Net Assets	$2,410,083

990

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

PDF

Fiscal Year Ending Sept.
2011

Revenue

$4,539,907

Expenses

$4,477,718

Net Income

$62,189

Net Assets

$2,493,377

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$473,456	10.4%
Program Services	$4,032,546	88.8%
Investment Income	$19,926	0.4%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$13,979	0.3%

Notable Expenses		Percent of Total Expenses
Executive Compensation	$593,264	13.2%
Professional Fundraising Fees	$0
Other Salaries and Wages	$1,548,978	34.6%

Assets/Debt
Total Assets	$3,435,844
Total Liabilities	$942,467
Net Assets	$2,493,377

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

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Neurosurgery Foundation Inc

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $131k (2024)

Expenses $136k (2024)

Total Assets $1.66M (2024)

Total Liabilities $68.4k (2024)

Tax Filings by Year

Fiscal Year Ending Sept. 2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2020

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Sept. 2019

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Sept. 2018

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Sept. 2017

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Sept. 2016

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Sept. 2015

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Sept. 2014

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Sept. 2013

Extracted Financial Data

Extracted Financial Data from Form 990

Document Links

990

Revenue

$131k (2024)

Expenses

$136k (2024)

Total Assets

$1.66M (2024)

Total Liabilities

$68.4k (2024)

Fiscal Year Ending Sept.
2024

Fiscal Year Ending Sept.
2023

Fiscal Year Ending Sept.
2022

Fiscal Year Ending Sept.
2021

Fiscal Year Ending Sept.
2020

Fiscal Year Ending Sept.
2019

Fiscal Year Ending Sept.
2018

Fiscal Year Ending Sept.
2017

Fiscal Year Ending Sept.
2016

Fiscal Year Ending Sept.
2015

Fiscal Year Ending Sept.
2014

Fiscal Year Ending Sept.
2013

Fiscal Year Ending Sept.
2012

Fiscal Year Ending Sept.
2011

Fiscal Year Ending Sept.
2010

Fiscal Year Ending Sept.
2009

Fiscal Year Ending Sept.
2008

Fiscal Year Ending Sept.
2007

Fiscal Year Ending Sept.
2006

Fiscal Year Ending Sept.
2005

Fiscal Year Ending Sept.
2004

Fiscal Year Ending Sept.
2003

Fiscal Year Ending Sept.
2002

Fiscal Year Ending Sept.
2001