Endocrine Fellows Foundations

Marion, CT
Tax-exempt since June 1995
EIN: 95-4511639

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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: Philanthropy, Voluntarism, and Grantmaking Foundations N.E.C. (NTEE)

Donations to this organization are tax deductible.

Revenue

$429k (2024)

Expenses

$532k (2024)

Total Assets

$619k (2024)

Total Liabilities

$0 (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 Dec.
2024

Revenue

$428,566

Expenses

$531,641

Net Income

-$103,075

Net Assets

$619,281

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$406,907	94.9%
Interest Revenue	$0
Dividends	$21,659	5.1%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$479,526	90.2%
Compensation of Officers*	$98,760	18.6%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$619,281
Total Liabilities	$0
Net Assets	$619,281

Compensation

Key Employees and Officers	Compensation	Other
Jennifer Kirkwood (Executive Director)	$53,760	$0
John P Bilezikian Md (Chair)	$24,000	$0
Ricardo Correa Md E Dd (Treasurer/Secretary)	$7,500	$0
Mark Stolar Md (President)	$6,500	$0
Nalatie Nokoff Md Ms (Board Member)	$3,500	$0
Theodora Pappa Md Ph D (Board Member)	$3,500	$0

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990-PF

Filed on May 2, 2025

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

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Fiscal Year Ending Dec.
2023

Revenue

$526,180

Expenses

$402,510

Net Income

$123,670

Net Assets

$722,356

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$517,628	98.4%
Interest Revenue	$0
Dividends	$8,552	1.6%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$336,844	83.7%
Compensation of Officers*	$83,240	20.7%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$722,356
Total Liabilities	$0
Net Assets	$722,356

Compensation

Key Employees and Officers	Compensation	Other
Jennifer Kirkwood (Executive Director)	$52,740	$0
John P Bilezikian Md (Chair)	$17,000	$0
Mark Stolar Md (President)	$6,500	$0
Ricardo Correa Md E Dd (Board Member)	$6,500	$0
Derek Le Roith Md Ph D (Board Member)	$500	$0
Annaswamy Raji Md (Treasurer)	$0	$0

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990-PF

Filed on May 1, 2024

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

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Fiscal Year Ending Dec.
2022

Revenue

$431,418

Expenses

$427,396

Net Income

$4,022

Net Assets

$598,686

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$430,997	99.9%
Interest Revenue	$0
Dividends	$421	0.1%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$358,366	83.8%
Compensation of Officers*	$79,320	18.6%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$598,686
Total Liabilities	$0
Net Assets	$598,686

Compensation

Key Employees and Officers	Compensation	Other
Jennifer Kirkwood (Executive Director)	$50,820	$0
John P Bilezikian Md (Chair)	$17,500	$0
Mark Stolar Md (President)	$7,000	$0
Ricardo Correa Md E Dd (Board Member)	$2,500	$0
Annaswamy Raji Md (Treasurer)	$1,000	$0
Derek Le Roith Md Ph D (Board Member)	$500	$0

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990-PF

Filed on May 11, 2023

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

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Fiscal Year Ending Dec.
2021

Revenue

$317,996

Expenses

$306,347

Net Income

$11,649

Net Assets

$594,664

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$317,580	99.9%
Interest Revenue	$0
Dividends	$416	0.1%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$219,901	71.8%
Compensation of Officers*	$77,180	25.2%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$594,664
Total Liabilities	$0
Net Assets	$594,664

Compensation

Key Employees and Officers	Compensation	Other
Jennifer Kirkwood (Executive Director)	$43,680	$0
John P Bilezikian Md (Chair)	$19,500	$0
Mark Stolar Md (President)	$7,000	$0
Derek Le Roith Md Ph D (Treasurer)	$3,750	$0
Annaswamy Raji Md (Board Member)	$3,250	$0
Ricardo Correa Md E Dd (Board Member)	$0	$0

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990-PF

Filed on April 26, 2022

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

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Fiscal Year Ending Dec.
2020

Revenue

$332,045

Expenses

$334,360

Net Income

-$2,315

Net Assets

$583,014

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$331,959	100.0%
Interest Revenue	$0
Dividends	$86	0.0%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$224,686	67.2%
Compensation of Officers*	$83,260	24.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$583,015
Total Liabilities	$1
Net Assets	$583,014

Compensation

Key Employees and Officers	Compensation	Other
Jennifer Kirkwood (Executive Director)	$48,780	$0
John P Bilezikian Md (Chair)	$12,500	$0
Mark Stolar Md (President)	$9,000	$0
Derek Le Roith Md Ph D (Treasurer)	$6,750	$0
Annaswamy Raji Md (Board Member)	$4,050	$0
April Duquette (Executive Director)	$2,180	$0

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990-PF

Filed on May 3, 2021

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

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Fiscal Year Ending Dec.
2019

Revenue

$676,302

Expenses

$586,581

Net Income

$89,721

Net Assets

$585,329

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$676,265	100.0%
Interest Revenue	$0
Dividends	$37	0.0%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$491,504	83.8%
Compensation of Officers*	$68,029	11.6%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$585,330
Total Liabilities	$1
Net Assets	$585,329

Compensation

Key Employees and Officers	Compensation	Other
April Duquette (Executive Director)	$36,029	$0
John P Bilezikian Md (Chair)	$12,500	$0
Mark Stolar Md (President)	$9,000	$0
Derek Le Roith Md Ph D (Treasurer)	$6,750	$0
Annaswamy Raji Md (Board Member)	$3,750	$0

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990-PF

Filed on May 18, 2020

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

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Fiscal Year Ending Dec.
2018

Revenue

$601,203

Expenses

$483,758

Net Income

$117,445

Net Assets

$495,609

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$601,192	100.0%
Interest Revenue	$0
Dividends	$11	0.0%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$390,706	80.8%
Compensation of Officers*	$33,500	6.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$495,609
Total Liabilities	$0
Net Assets	$495,609

Compensation

Key Employees and Officers	Compensation	Other
John P Bilezikian Md (Chair)	$12,500	$0
Mark Stolar Md (President)	$9,000	$0
Derek Le Roith Md Ph D (Treasurer)	$6,750	$0
Annaswamy Raji Md (Board Member)	$5,250	$0

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990-PF

Filed on June 11, 2019

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

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Fiscal Year Ending Dec.
2017

Revenue

$613,225

Expenses

$633,962

Net Income

-$20,737

Net Assets

$378,164

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$613,220	100.0%
Interest Revenue	$0
Dividends	$5	0.0%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$510,224	80.5%
Compensation of Officers*	$21,000	3.3%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$378,164
Total Liabilities	$0
Net Assets	$378,164

Compensation

Key Employees and Officers	Compensation	Other
John P Bilezikian Md (Chair)	$7,500	$0
Mark Stolar Md (President)	$6,000	$0
Derek Le Roith Md Ph D (Treasurer)	$3,750	$0
Annaswamy Raji Md (Board Member)	$3,750	$0

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990-PF

Filed on Sept. 14, 2018

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

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Fiscal Year Ending Dec.
2016

Revenue

$794,366

Expenses

$540,642

Net Income

$253,724

Net Assets

$398,901

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$794,329	100.0%
Interest Revenue	$0
Dividends	$37	0.0%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$400,227	74.0%
Compensation of Officers*	$21,750	4.0%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$398,901
Total Liabilities	$0
Net Assets	$398,901

Compensation

Key Employees and Officers	Compensation	Other
John P Bilezikian Md (Chair)	$7,500	$0
Mark Stolar Md (President)	$6,750	$0
Derek Le Roith Md Ph D (Treasurer)	$3,750	$0
Annaswamy Raji Md (Board Member)	$3,750	$0

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990-PF

Filed on May 30, 2017

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

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Fiscal Year Ending Dec.
2015

Revenue

$390,480

Expenses

$554,634

Net Income

-$164,154

Net Assets

$145,177

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$390,463	100.0%
Interest Revenue	$0
Dividends	$17	0.0%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$419,520	75.6%
Compensation of Officers*	$21,000	3.8%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$145,177
Total Liabilities	$0
Net Assets	$145,177

Compensation

Key Employees and Officers	Compensation	Other
John P Bilezikian Md (Chair)	$7,500	$0
Mark Stolar Md (President)	$6,000	$0
Derek Le Roith Md Ph D (Treasurer)	$5,625	$0
Annaswamy Raji Md (Board Member)	$1,875	$0

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990-PF

Filed on May 4, 2016

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

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Fiscal Year Ending Dec.
2014

Revenue

$473,905

Expenses

$486,832

Net Income

-$12,927

Net Assets

$309,331

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$473,887	100.0%
Interest Revenue	$0
Dividends	$18	0.0%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$349,776	71.8%
Compensation of Officers*	$29,000	6.0%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$309,331
Total Liabilities	$0
Net Assets	$309,331

Compensation

Key Employees and Officers	Compensation	Other
John P Bilezikian Md (Chair)	$12,500	$0
Mark Stolar Md (President)	$7,500	$0
Ronald Tamler Md Ph D (Board Member)	$3,750	$0
Derek Le Roith Md Ph D (Treasurer)	$1,875	$0
Michael Berelowitz Md (Board Member)	$1,875	$0
Ramachandiran Cooppan Md (Editor In Chief)	$1,500	$0
Sherman M Holvey Md (Past President)	$0	$0

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990-PF

Filed on June 23, 2015

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

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Fiscal Year Ending Dec.
2013

Revenue

$563,187

Expenses

$574,861

Net Income

-$11,674

Net Assets

$322,258

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$563,160	100.0%
Interest Revenue	$0
Dividends	$27	0.0%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$421,308	73.3%
Compensation of Officers*	$38,125	6.6%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$322,258
Total Liabilities	$0
Net Assets	$322,258

Compensation

Key Employees and Officers	Compensation	Other
John P Bilezikian Md (Chair)	$12,500	$0
Mark Stolar Md (President)	$7,500	$0
Derek Le Roith Md Ph D (Treasurer)	$5,750	$0
Ronald Tamler Md Ph D (Board Member)	$4,875	$0
Ramachandiran Cooppan Md (Editor In Chief)	$3,750	$0
Michael Berelowitz Md (Board Member)	$3,750	$0
Sherman M Holvey Md (Past President)	$0	$0

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990-PF

Filed on May 8, 2014

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

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Fiscal Year Ending Dec.
2012

Revenue

$326,025

Expenses

$592,467

Net Income

-$266,442

Net Assets

$333,931

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$325,828	99.9%
Interest Revenue	$0
Dividends	$197	0.1%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$423,547	71.5%
Compensation of Officers*	$74,000	12.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$333,932
Total Liabilities	$1
Net Assets	$333,931

990-PF

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

PDF

Fiscal Year Ending Dec.
2011

Revenue

$806,541

Expenses

$832,961

Net Income

-$26,420

Net Assets

$600,373

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$805,414	99.9%
Interest Revenue	$0
Dividends	$1,127	0.1%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$651,362	78.2%
Compensation of Officers*	$57,556	6.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$600,374
Total Liabilities	$1
Net Assets	$600,373

990-PF

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

PDF

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Endocrine Fellows Foundations

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $429k (2024)

Expenses $532k (2024)

Total Assets $619k (2024)

Total Liabilities $0 (2024)

Tax Filings by Year

Fiscal Year Ending Dec. 2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

Revenue

$429k (2024)

Expenses

$532k (2024)

Total Assets

$619k (2024)

Total Liabilities

$0 (2024)

Fiscal Year Ending Dec.
2024

Fiscal Year Ending Dec.
2023

Fiscal Year Ending Dec.
2022

Fiscal Year Ending Dec.
2021

Fiscal Year Ending Dec.
2020

Fiscal Year Ending Dec.
2019

Fiscal Year Ending Dec.
2018

Fiscal Year Ending Dec.
2017

Fiscal Year Ending Dec.
2016

Fiscal Year Ending Dec.
2015

Fiscal Year Ending Dec.
2014

Fiscal Year Ending Dec.
2013

Fiscal Year Ending Dec.
2012

Fiscal Year Ending Dec.
2011

Fiscal Year Ending Dec.
2010

Fiscal Year Ending Dec.
2009

Fiscal Year Ending Dec.
2008

Fiscal Year Ending Dec.
2007

Fiscal Year Ending Dec.
2006

Fiscal Year Ending Dec.
2005

Fiscal Year Ending Dec.
2004

Fiscal Year Ending Dec.
2003

Fiscal Year Ending Dec.
2002

Fiscal Year Ending Dec.
2001