1. Directory
  2. Massachusetts
  3. Somerville
  4. Mass General Brigham Incorporated
EIN 04-3230035

Mass General Brigham Incorporated

IRS 501(c) type
501(c)(3)
Num. employees
8,968
City
Somerville
State
Massachusetts
Year formed
1993
Most recent tax filings
2023-09-01
NTEE code, primary
E21: Community Health Systems
Description
Mass General Brigham Incorporated oversees the affiliation of Brigham, Inc., The Massachusetts General Hospital, NSMC Healthcare, Inc., Newton-Wellesley Health Care System, Inc., and Spaulding Rehabilitation, Inc. Its mission includes patient care, teaching, research, and serving the community.
Related structure
Mass General Brigham Incorporated is a parent organization to a group of 48 other organizations.
Also known as...
Partners Healthcare System
Total revenues
$2,053,039,249
2023
Total expenses
$2,146,509,087
2023
Total assets
$9,377,106,791
2023
Num. employees
8,968
2023

Grants made by Mass General Brigham Incorporated

GranteeGrant descriptionAmount
Partners Continuing CareExempt Affiliate Support$48,000,000
General Hospital CorporationExempt Affiliate Support$29,890,284
Mass General Brigham Incorporated / Mass General Brigham Comm PhysicianExempt Affiliate Support$25,680,557
...and 66 more grants made totalling $160,716,602

Who funds Mass General Brigham Incorporated

Grants from foundations and other nonprofits
GrantmakerDescriptionAmount
Mass General Brigham Incorporated and Affiliates Group ReturnTo Support Tax Exempt Affiliate$226,493,559
Fidelity Non-Profit Management FoundationDiscovery Research (Science)$1,500,000
Beth Israel Deaconess Medical Center (BIDMC)Research Subcontract$1,247,263
...and 21 more grants received totalling $232,840,636

Financials for Mass General Brigham Incorporated

RevenuesFYE 09/2023
Total grants, contributions, etc.$564,469,432
Program services$1,302,825,972
Investment income and dividends$7,463,524
Tax-exempt bond proceeds$0
Royalty revenue$54,951
Net rental income$798,000
Net gain from sale of non-inventory assets$177,040,864
Net income from fundraising events$0
Net income from gaming activities$0
Net income from sales of inventory$0
Miscellaneous revenues$386,506
Total revenues$2,053,039,249

Organizations like Mass General Brigham Incorporated

OrganizationLocationRevenue
Duke University Health SystemDurham, NC$4,672,834,668
PeaceHealthVancouver, WA$3,623,620,652
The Nemours FoundationJacksonville, FL$2,085,972,065
Nyu Langone HospitalsNew York, NY$8,868,510,832
Indiana University HealthIndianapolis, IN$5,752,062,837
Allina HealthMinneapolis, MN$5,383,327,820
Stanford Health CareStanford, CA$7,049,201,975
Cooper University Health CareCamden, NJ$2,311,381,212
Scripps HealthSan Diego, CA$4,140,209,334
UC Healthcare SystemCincinnati, OH$2,255,775,923
Data update history
April 23, 2025
Received grants
Identified 5 new grant, including a grant for $316,592 from Institute for Healthcare Improvement
January 15, 2025
Received grants
Identified 14 new grant, including a grant for $226,493,559 from Mass General Brigham Incorporated and Affiliates Group Return
October 4, 2024
Updated personnel
Identified 4 new personnel
September 30, 2024
Posted financials
Added Form 990 for fiscal year 2023
September 24, 2024
Updated personnel
Identified 2 new personnel
Nonprofit Types
Grantmaking organizationsHospitalsHealth organizationsHeadquarter / parent organizations
Issues
Health
Characteristics
Political advocacyLobbyingOperates internationallyNational levelReceives government fundingEndowed supportCommunity engagement / volunteeringTax deductible donationsAccepts online donations
General information
Address
399 Revolution Dr 645
Somerville, MA 02145
Metro area
Boston-Cambridge-Newton, MA-NH
County
Middlesex County, MA
Website URL
massgeneralbrigham.org/ 
Phone
(857) 282-0747
Facebook page
partnershealthcare 
Twitter profile
@partnersnews 
IRS details
EIN
04-3230035
Fiscal year end
September
Taxreturn type
Form 990
Year formed
1993
Eligible to receive tax-deductible contributions (Pub 78)
Yes
Categorization
NTEE code, primary
E21: Community Health Systems
NAICS code, primary
622: Hospitals
Parent/child status
Parent of group exemption
Central organization
California AB-488 details
AB 488 status
Not Operating or In Process of Dissolving
Charity Registration status
Closed - Registration Not Required
FTB status revoked
Not revoked
AG Registration Number
None yet
FTB Entity ID
3305477
AB 488 data last updated ("as-of") date
2025-07-02
Free account sign-up

Want updates when Mass General Brigham Incorporated has new information, or want to find more organizations like Mass General Brigham Incorporated?

Create free Cause IQ account
Cause IQ is a website that helps companies grow, maintain, and serve their nonprofit clients, and helps nonprofits find additional foundation funding. Our data and tools help professionals prospect for nonprofits, research opportunities, benchmark their clients, and enrich existing information.
Nonprofits
Product
Customers
About

© 2026 Nonprofit Metrics LLC
Terms of Service and Privacy Policy