Health system based in Somerville, MA · 15 hospitals in MA, NH
Hospitals
15
11 general acute care
Beds
3,525
2 states
Net patient revenue
$15.01B
FY 2025, hospitals only
Net income
$1.24B
Patient care margin -30.6%
Clinicians
12,574
Medicare clinicians at its hospitals
Average stars
4.22 of 5
Rated hospitals
Sum over member hospitals with a cost report that year
Locations are shown at the center of the ZIP code.
How each hospital is linked to the system: by the home office it reports or by the official ownership records (current ownership wins over older records).
| Hospital | Type | Beds | Stars | Net patient revenue | Patient care margin | Linked by |
|---|---|---|---|---|---|---|
| Massachusetts General Hospital Boston, MA | Short-term acute care | 997 | 5 of 5 | $4.45B | -54.7% | Home office on the cost report |
| Brigham and Women's Hospital Boston, MA | Short-term acute care | 846 | 5 of 5 | $3.35B | -34.2% | Home office and ownership records |
| McLean Hospital Corporation Belmont, MA | Psychiatric | 309 | Not rated | $470.9M | 14.8% | Home office and ownership records |
| North Shore Medical Center - Salem, MA | Short-term acute care | 281 | 5 of 5 | $684.3M | -14.0% | Home office and ownership records |
| Newton-Wellesley Hospital Newton, MA | Short-term acute care | 240 | 5 of 5 | $739.4M | -3.8% | Health system list (2023) |
| Brigham and Women Faulkner Hospital Jamaica Plain, MA | Short-term acute care | 164 | 5 of 5 | $415.7M | -4.6% | Home office and ownership records |
| Spaulding Hospital for Continuing Med Care-Camb Cambridge, MA | Long-term care | 150 | Not rated | $75.3M | -46.6% | Home office and ownership records |
| Spaulding Rehabilitation Hospital Charlestown, MA | Rehabilitation | 132 | Not rated | $194.2M | -22.7% | Home office and ownership records |
| Wentworth-Douglass Hospital Dover, NH | Short-term acute care | 118 | 4 of 5 | $672.3M | 12.6% | Home office on the cost report |
| Cooley Dickinson Hospital Inc,the Northampton, MA | Short-term acute care | 118 | 2 of 5 | $298.4M | 4.4% | Home office and ownership records |
| Spaulding Rehabilitation Hospital - Cape Cod East Sandwich, MA | Rehabilitation | 60 | Not rated | $59.4M | -7.5% | Home office and ownership records |
| Massachusetts Eye and Ear Infirmary - Boston, MA | Short-term acute care | 41 | Not rated | $347.3M | -31.7% | Home office and ownership records |
| Dana-Farber Cancer Institute Boston, MA | Short-term acute care | 30 | Not rated | $3.01B | -26.8% | Health system list (2023) |
| Martha's Vineyard Hospital Inc Oak Bluffs, MA | Critical access | 25 | 4 of 5 | $153.8M | -6.1% | Home office and ownership records |
| Nantucket Cottage Hospital Nantucket, MA | Short-term acute care | 14 | 3 of 5 | $84.4M | -26.6% | Home office and ownership records |
From a 2023 list of US health systems; counts include clinics and other sites that are not hospitals.
Medicare group practices whose ID or NPI belongs to a system hospital or its parent organization
Member hospitals, 2024
| Group | Hospitals | Cases | Medicare paid |
|---|---|---|---|
| APC 8011 Comprehensive Observation Services | 10 | 7,836 | $18.0M |
| APC 5072 Level 2 Excision/ Biopsy/ Incision and Drainage | 10 | 4,626 | $6.2M |
| APC 5491 Level 1 Intraocular Procedures | 3 | 3,722 | $7.3M |
| DRG 871 SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITH MCC | 7 | 2,690 | $47.7M |
| APC 5115 Level 5 Musculoskeletal Procedures | 8 | 2,621 | $32.1M |
| APC 5073 Level 3 Excision/ Biopsy/ Incision and Drainage | 10 | 2,561 | $6.1M |
| APC 5302 Level 2 Upper GI Procedures | 9 | 2,515 | $4.0M |
| DRG 291 HEART FAILURE AND SHOCK WITH MCC | 8 | 2,174 | $24.5M |
| APC 5183 Level 3 Vascular Procedures | 8 | 1,846 | $4.9M |
| APC 5114 Level 4 Musculoskeletal Procedures | 9 | 1,652 | $9.9M |
| APC 5431 Level 1 Nerve Procedures | 11 | 1,611 | $2.6M |
| APC 5373 Level 3 Urology and Related Services | 8 | 1,587 | $2.7M |
Official US government data (hospital ownership records, cost reports and quality ratings), linked by CCN, NPI and ownership keys. Financial totals add up the system's hospitals only.
Mass General Brigham is a nonprofit health system with 15 hospitals and 3,525 beds, based in Somerville, MA.
Mass General Brigham has 15 hospitals (11 general acute care) in 2 states, most of them in Massachusetts (14), New Hampshire (1), with 3,525 beds in total. Its largest hospital is Massachusetts General Hospital in Boston, MA.
Its hospitals reported $15.01B in net patient revenue and $1.24B in net income in fiscal year 2025 (15 hospitals with a cost report that year). The margin on patient care was -30.6%. These are hospital figures; the whole organization's results also include clinics, insurance plans and other businesses.
Mass General Brigham is a nonprofit health system based in Somerville, MA; it is not owned by a listed company.
12,574 Medicare clinicians list one of its hospitals as a place they work. In 2023 the system had about 9,121 physicians, 2,388 of them in primary care, plus 2,155 nurse practitioners and 1,342 physician assistants.
The rated hospitals of Mass General Brigham average 4.22 out of 5 stars in the official hospital quality ratings.