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ENDOCRINE FELLOWS FOUNDATIONS

EIN 95-4511639 MARION, CT

Largest nonprofits in Connecticut

Revenue 2025
$464,410
Expenses 2025
$556,571

As filed

Subsection
03
NTEE code
T99Z
Classification
1000
Street
PO BOX 310

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • John P Bilezikian MD

    Chair

    Total calculated
    $13,500
    Compensation
    $13,500
    Benefit plans
    $0
    Expense account
    $0
    Hours/week
    6
  • Nalatie Nokoff MD MS

    Secretary

    Total calculated
    $5,000
    Compensation
    $5,000
    Benefit plans
    $0
    Expense account
    $0
    Hours/week
    3
  • Ricardo Correa MD eDD

    President

    Total calculated
    $8,000
    Compensation
    $8,000
    Benefit plans
    $0
    Expense account
    $0
    Hours/week
    3
  • Theodora Pappa MD PhD

    Treasurer

    Total calculated
    $5,000
    Compensation
    $5,000
    Benefit plans
    $0
    Expense account
    $0
    Hours/week
    3
  • Jennifer Kirkwood

    Executive Director

    Total calculated
    $55,400
    Compensation
    $55,400
    Benefit plans
    $0
    Expense account
    $0
    Hours/week
    15
  • Mark Stolar

    Former President

    Total calculated
    $4,000
    Compensation
    $4,000
    Benefit plans
    $0
    Expense account
    $0
    Hours/week
    2

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2025
    Revenue
    $464,410
    Expenses
    $556,571
    Contributions
    $456,622
    Grants paid
    $75,000
  • 2024
    Revenue
    $428,566
    Expenses
    $531,641
    Contributions
    $406,907
    Grants paid
    $96,000
  • 2023
    Revenue
    $526,180
    Expenses
    $402,510
    Contributions
    $517,628
    Grants paid
    $27,500
  • 2022
    Revenue
    $431,418
    Expenses
    $427,396
    Contributions
    $430,997
    Grants paid
    $102,500

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990-PF

    Revenue
    $317,996
    Expenses
    $306,347
    Assets (EOY)
    $594,664
  • 2020 · 990-PF

    Revenue
    $332,045
    Expenses
    $334,360
    Assets (EOY)
    $583,015
  • 2019 · 990-PF

    Revenue
    $676,302
    Expenses
    $586,581
    Assets (EOY)
    $585,330
  • 2018 · 990-PF

    Revenue
    $601,203
    Expenses
    $483,758
    Assets (EOY)
    $495,609
  • 2017 · 990-PF

    Revenue
    $613,225
    Expenses
    $633,962
    Assets (EOY)
    $378,164
  • 2016 · 990-PF

    Revenue
    $794,366
    Expenses
    $540,642
    Assets (EOY)
    $398,901
  • 2015 · 990-PF

    Revenue
    $390,480
    Expenses
    $554,634
    Assets (EOY)
    $145,177
  • 2014 · 990-PF

    Revenue
    $473,905
    Expenses
    $486,832
    Assets (EOY)
    $309,331
  • 2013 · 990-PF

    Revenue
    $563,187
    Expenses
    $574,861
    Assets (EOY)
    $322,258
  • 2012 · 990-PF

    Revenue
    not reported
    Expenses
    $592,467
    Assets (EOY)
    $333,932

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PF.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2025, the newest we have parsed for this organization.