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Nonprofit · EIN 04-3148389

TUFTS MEDICAL CENTER PHYSICIANS ORGANIZATION INC

Also known as PRATT RADIATION ONCOLOGY ASSOC INC

Tax-exempt · BOSTON, MA 02111

Address and contacts

Address (IRS master file)
800 WASHINGTON STREET TMCPO 1013, BOSTON, MA 02111-1552

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 September, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025September 30, 2026February 16, 2027Not due yet
2024September 30, 2025February 17, 2026Check at the IRS
2023September 30, 2024February 18, 2025Check at the IRS

IRS record

EIN
04-3148389
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Exempt since
1993
Accounting year ends
September
Files
Form 990 or 990-EZ
Category (NTEE)
Health care (E31Z)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-TSeptember 2025–––IRS
990-TSeptember 2024–––IRS
990-TSeptember 2023–––IRS
990-TSeptember 2022–––IRS
990-TSeptember 2021–––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 04-3148389).

Questions about TUFTS MEDICAL CENTER PHYSICIANS ORGANIZATION INC

What is the EIN of TUFTS MEDICAL CENTER PHYSICIANS ORGANIZATION INC?
The employer identification number (EIN) of TUFTS MEDICAL CENTER PHYSICIANS ORGANIZATION INC is 04-3148389.
Is TUFTS MEDICAL CENTER PHYSICIANS ORGANIZATION INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1993.
Which annual return does TUFTS MEDICAL CENTER PHYSICIANS ORGANIZATION 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 TUFTS MEDICAL CENTER PHYSICIANS ORGANIZATION INC due?
The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did TUFTS MEDICAL CENTER PHYSICIANS ORGANIZATION INC last file with the IRS?
There is no e-filed return or e-Postcard for it in the IRS public files.

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