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STONY BROOK INTERNISTS P C

EIN 11-2558775 STONY BROOK, NY

Largest nonprofits in New York

Revenue 2023
$218,489,400
Expenses 2023
$220,795,556

Program services were 94.9% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
E20
Classification
1000
Street
PO BOX 1554

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).

Other organizations at this address

19 other organizations in the IRS Business Master File list the same street address. matched by us

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

Mission and programs · 2023

Mission

PROVIDE CLINICAL INSTRUCTION TO AND SUPERVISION OF MEDICAL SCHOOL STUDENTS, INTERNS AND RESIDENTS AND, INCIDENT THERETO, RENDERING PROFESSIONAL SERVICES.

  • THE ORGANIZATION PROVIDES SERVICES IN THE FIELD OF INTERNAL MEDICINE TO PATIENTS AND PROVIDES CLINICAL INSTRUCTION TO AND SUPERVISION OF SCHOOL OF MEDICINE STUDENTS AND HOSPITAL RESIDENTS.

    Expenses $209,616,199 · Revenue $218,244,864

As filed on the 2023 return.

Officers and directors · 2023

As listed in Part VII of the 2023 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Vincent Yang

    President & Director

    Total calculated
    $951,986
    From this org
    $582,632
    From related orgs
    $270,947
    Other
    $98,407
    Hours/week
    40 + 10 related

    Schedule J breakdown matched by us

    Base
    $498,198 + $270,947 related
    Bonus
    $81,824
    Other
    $2,610
    Deferred
    $38,892 + $35,223 related
    Nontaxable benefits
    $1,754 + $22,538 related
    Filer's total
    $623,278 + $328,708 related
  • William A Wertheim

    DIRECTOR/SECRETARY/TREASURER

    Total calculated
    $459,863
    From this org
    $389,721
    From related orgs
    $0
    Other
    $70,142
    Hours/week
    40 + 10 related

    Schedule J breakdown matched by us

    Base
    $378,778
    Bonus
    $8,333
    Other
    $2,610
    Deferred
    $46,453
    Nontaxable benefits
    $1,151 + $22,538 related
    Filer's total
    $437,325 + $22,538 related
  • Donna Heinemann

    DIRECTOR

    Total calculated
    $360,257
    From this org
    $201,295
    From related orgs
    $97,110
    Other
    $61,852
    Hours/week
    40 + 10 related

    Schedule J breakdown matched by us

    Base
    $192,921 + $97,110 related
    Bonus
    $6,146
    Other
    $2,228
    Deferred
    $23,888 + $14,072 related
    Nontaxable benefits
    $1,354 + $22,538 related
    Filer's total
    $226,537 + $133,720 related
  • Dhaval Patel

    INTERNIST

    Total calculated
    $958,498
    From this org
    $822,750
    From related orgs
    $65,295
    Other
    $70,453
    Hours/week
    40 + 10 related

    Schedule J breakdown matched by us

    Base
    $546,948 + $65,295 related
    Bonus
    $273,192
    Other
    $2,610
    Deferred
    $39,600 + $6,530 related
    Nontaxable benefits
    $1,785 + $22,538 related
    Filer's total
    $864,135 + $94,363 related
  • Eric Rashba

    INTERNIST

    Total calculated
    $1,013,579
    From this org
    $726,723
    From related orgs
    $197,904
    Other
    $88,952
    Hours/week
    40 + 10 related

    Schedule J breakdown matched by us

    Base
    $442,339 + $197,904 related
    Bonus
    $282,035
    Other
    $2,349
    Deferred
    $39,600 + $25,728 related
    Nontaxable benefits
    $1,086 + $22,538 related
    Filer's total
    $767,409 + $246,170 related
  • Peter Igarashi

    INTERNIST

    Total calculated
    $926,452
    From this org
    $301,879
    From related orgs
    $565,526
    Other
    $59,047
    Hours/week
    40 + 10 related

    Schedule J breakdown matched by us

    Base
    $215,000 + $565,526 related
    Bonus
    $59,345
    Other
    $27,534
    Deferred
    $35,921
    Nontaxable benefits
    $588 + $22,538 related
    Filer's total
    $338,388 + $588,064 related
  • Robert Pyo

    INTERNIST

    Total calculated
    $853,816
    From this org
    $791,090
    From related orgs
    $0
    Other
    $62,726
    Hours/week
    40 + 10 related

    Schedule J breakdown matched by us

    Base
    $788,480
    Bonus
    $0
    Other
    $2,610
    Deferred
    $39,600
    Nontaxable benefits
    $588 + $22,538 related
    Filer's total
    $831,278 + $22,538 related
  • Roger Fan

    INTERNIST

    Total calculated
    $1,063,700
    From this org
    $775,571
    From related orgs
    $199,190
    Other
    $88,939
    Hours/week
    40 + 10 related

    Schedule J breakdown matched by us

    Base
    $522,501 + $199,190 related
    Bonus
    $250,460
    Other
    $2,610
    Deferred
    $39,600 + $25,895 related
    Nontaxable benefits
    $906 + $22,538 related
    Filer's total
    $816,077 + $247,623 related

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. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2023
    Revenue
    $218,489,400
    Expenses
    $220,795,556
    Contributions
    $0
    Grants paid
    $0
  • 2022
    Revenue
    $204,326,135
    Expenses
    $206,472,929
    Contributions
    $0
    Grants paid
    $0

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

    Revenue
    $189,262,962
    Expenses
    $193,637,104
    Assets (EOY)
    $11,192,679
  • 2020 · 990

    Revenue
    $183,750,029
    Expenses
    $165,364,308
    Assets (EOY)
    $8,139,497
  • 2019 · 990

    Revenue
    $146,928,194
    Expenses
    $153,868,543
    Assets (EOY)
    $4,575,316
  • 2018 · 990

    Revenue
    $135,946,214
    Expenses
    $132,294,628
    Assets (EOY)
    $11,552,381
  • 2017 · 990

    Revenue
    $117,120,795
    Expenses
    $120,230,099
    Assets (EOY)
    $7,900,795
  • 2016 · 990

    Revenue
    $108,538,650
    Expenses
    $104,503,899
    Assets (EOY)
    $11,010,098
  • 2015 · 990

    Revenue
    $111,567,585
    Expenses
    $115,666,641
    Assets (EOY)
    $6,975,347
  • 2014 · 990

    Revenue
    $111,976,212
    Expenses
    $110,109,968
    Assets (EOY)
    $11,074,403
  • 2013 · 990

    Revenue
    $100,096,156
    Expenses
    $103,307,512
    Assets (EOY)
    $9,208,159
  • 2012 · 990

    Revenue
    not reported
    Expenses
    $49,012,882
    Assets (EOY)
    $12,419,516

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

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2023 return

Taxable family

From Schedule R Parts I, III and IV: entities that legally are the filer, and taxable partnerships, corporations and trusts it is related to. These record ownership and control, not shared board members or money.

Related partnerships on its 2023 return

  • STONY BROOK HEALTHCARE IPA LL

    Related · HEALTHCARE · NY

Related corporations and trusts on its 2023 return

  • NICOLLS INDEMNITY SOLUTIONS SPC

    C Corporation · SELF-INSURANCE · CJ

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 PC.

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 2023, the newest we have parsed for this organization.