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Nonprofit · EIN 04-2863899

MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC

Tax-exempt · WALTHAM, MA 02451

Financials

$298K$259K2022$378K$197K2023$320K$246K2024
Revenue Expenses · by fiscal year end
Financials of MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
March 31, 2025990$319,612$245,584$74,028$1,440,445$0$1,440,445
March 31, 2024990$378,027$196,505$181,522$1,366,416$0$1,366,416
March 31, 2023990$298,271$259,482$38,789$1,184,896$0$1,184,896
Financial details: 990 for the year ended March 31, 2025

Revenue

Contributions, gifts and grants
$313,000
Membership dues
$305,000
Program service revenue
$6,400
Investment income
$212
Other revenue
$0

Expenses

Grants and similar amounts paid
$101,305
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Legal fees
$3,333
Accounting fees
$14,663
Program services (functional)
$225,843
Management and general (functional)
$19,741

Balance sheet and other

Total assets, start of year
$1,366,416
Total assets, end of year
$1,440,445
Total liabilities, end of year
$0
Net assets, end of year
$1,440,445
Net assets without donor restrictions
$1,440,445
Gross unrelated business income
$212
Gross receipts
$319,612
Employees
0
Volunteers
12
Year formed
1985
State of legal domicile
MA

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended March 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
MEGHAN SHEASECRETARY
Officer
2$0
MICHAEL CONSTANTINEPRESIDENT
Officer
2$0
OMAR ETONDIRECTOR
Trustee or director
1$0
LARISSA NEKHLYUDOVDIRECTOR
Trustee or director
1$0
CLAIRE FUNGDIRECTOR
Trustee or director
1$0
KALA SEETHARAMANPAST PRESIDENT
Officer
2$0
INGA LENNESDIRECTOR
Trustee or director
1$0
JEFFREY WISCHDIRECTOR
Trustee or director
1$0
ERIC T WONGDIRECTOR
Trustee or director
1$0
EDRESS OTHMANDIRECTOR
Officer
2$0
TARA SOUMERAIDIRECTOR
Trustee or director
1$0
DAVIS SHEPRODIRECTOR
Trustee or director
1$0
990 for the year ended March 31, 2024: 12 people
NameTitleHours / weekCompensation
MEGHAN SHEASECRETARY
Officer
2$0
MICHAEL CONSTANTINEPRESIDENT
Officer
2$0
OMAR ETONDIRECTOR
Trustee or director
1$0
LARISSA NEKHLYUDOVDIRECTOR
Trustee or director
1$0
CLAIRE FUNGDIRECTOR
Trustee or director
1$0
KALA SEETHARAMANPAST PRESIDENT
Officer
2$0
INGA LENNESDIRECTOR
Trustee or director
1$0
JEFFREY WISCHDIRECTOR
Trustee or director
1$0
ERIC T WONGDIRECTOR
Trustee or director
1$0
EDRESS OTHMANDIRECTOR
Officer
2$0
TARA SOUMERAIDIRECTOR
Trustee or director
1$0
DAVIS SHEPRODIRECTOR
Trustee or director
1$0
990 for the year ended March 31, 2023: 12 people
NameTitleHours / weekCompensation
MEGHAN SHEASECRETARY
Officer
2$0
MICHAEL CONSTANTINEPRESIDENT
Officer
2$0
OMAR ETONDIRECTOR
Trustee or director
1$0
LARISSA NEKHLYUDOVDIRECTOR
Trustee or director
1$0
CLAIRE FUNGDIRECTOR
Trustee or director
1$0
KALA SEETHARAMANPAST PRESIDENT
Officer
2$0
INGA LENNESDIRECTOR
Trustee or director
1$0
JEFFREY WISCHDIRECTOR
Trustee or director
1$0
ERIC T WONGDIRECTOR
Trustee or director
1$0
EDRESS OTHMANDIRECTOR
Officer
2$0
TARA SOUMERAIDIRECTOR
Trustee or director
1$0
DAVIS SHEPRODIRECTOR
Trustee or director
1$0

Address and contacts

Address (IRS master file)
860 WINTER ST, WALTHAM, MA 02451-1449
In care of
% W KAGAN MD
Principal officer (990 for 2024)
MICHAEL CONSTANTINE, 14 PROSPECT STREET, MILFORD, MA 01757
Signed the 990
MICHAEL CONSTANTINE, PRESIDENT
Phone
(781) 434-7314
Return prepared by
MAHONY & REEVE LLC

Mission

TO DISSEMINATE INFORMATION CONCERNING THE DIAGNOSIS, CARE, AND THE TREATMENT OF CANCER TO PRACTICING PHYSICIANS AND THE GENERAL PUBLIC.

990 for the year ended March 31, 2025

Program accomplishments

  • PROVIDING PROGRAMS FOR PHYSICIANS TO FURTHER THEIR PROFESSIONAL EDUCATION AND TECHNICAL ASSISTANCE WITH THIRD-PARTY REIMBURSEMENT.
    Expenses $225,843 · grants $101,305 · revenue $319,612

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in March, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025March 31, 2026August 17, 2026Not on file
2024March 31, 2025August 15, 2025990 on file
2023March 31, 2024August 15, 2024990 on file

IRS record

EIN
04-2863899
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1985
Accounting year ends
March
Files
Form 990 or 990-EZ
Assets (IRS master file)
$1,440,445
Income (IRS master file)
$319,612

Filing history

FormYear endedRevenueExpensesAssetsReturn
990March 2025$319,612$245,584$1,440,445XML
990March 2024$378,027$196,505$1,366,416XML
990March 2023$298,271$259,482$1,184,896XML
990March 2022$245,160$235,958$1,146,107IRS
990March 2021–––IRS
990March 2020–––IRS
990March 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 04-2863899).

Questions about MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC

What is the EIN of MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC?
The employer identification number (EIN) of MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC is 04-2863899.
Is MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1985.
Are donations to MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC due?
The return for tax year 2025 (the year ending March 31, 2026) is due August 17, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended March 2025.
Who is the principal officer of MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC?
The 990 for the year ended March 31, 2025 names MICHAEL CONSTANTINE.
Who are the officers and directors of MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC?
The 990 for the year ended March 31, 2025 lists 12 people; 0 received compensation from the organization.
How much revenue does MASSACHUSETTS SOCIETY OF CLINICAL ONOCOLOGISTS INC have?
On its 990 for the year ended March 31, 2025 it reported revenue of $319,612, expenses of $245,584 and total assets of $1,440,445 at year end.

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