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MASS GENERAL BRIGHAM INCORPORATED

EIN 04-1564655 SOMERVILLE, MA

As filed

Subsection
03
NTEE code
E21
Classification
1000
Street
399 REVOLUTION DR STE 645

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).

Group exemption

A subordinate covered by the group exemption of MASS GENERAL BRIGHAM INCORPORATED (EIN 04-3230035). matched by us

The IRS lists each organization's group exemption number; we match a subordinate to its central organization by that number and the affiliation code the IRS assigns.

Filings

No Form 990 filing has been parsed for this organization. The IRS accepted at least one return from this organization that Nonprofiteer does not hold as a parsed filing — a Form 990-T, or a form it does not yet parse. The returns are listed below, with the top-line figures the IRS index carries for them. classified by us Read from the filing-requirement codes the IRS publishes for it in the Business Master File.

Other returns filed

  • 2023 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2022 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2021 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2020 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

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.

Form 990-N e-Postcard, tax year 2021

Tax period
1 October 2021 to 30 September 2022
Principal officer
TREASURERS OFFICE
Mailing address
55 FRUIT STBOSTON MA 021142621
Website
WWW.PARTNERSHEALTHCARESYSTEM.COM

As filed, from the IRS e-Postcard file of 19 October 2026. The IRS publishes only each organization's most recent postcard, so earlier years are not shown. A 990-N carries no financial detail. The postcard also gives the principal officer's address, which is not shown here.

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

The 10 largest by cash amount. The API serves every itemized grant.

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 as related by

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

Not present in the most recent drop.

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 23 October 2026, for every organization at once. No return for this organization has been parsed, so nothing above comes from a filing.