| Milford Regional Medical Center | Milford, MA | Acute Care Hospitals | Voluntary non-profit - Other | 4 stars |
| Miravista Behavioral Health Center | Holyoke, MA | Psychiatric | Proprietary | Not rated |
| Mount Auburn Hospital | Cambridge, MA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Nantucket Cottage Hospital | Nantucket, MA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Nashoba Valley Medical Center | Ayer, MA | Acute Care Hospitals | Proprietary | Not rated |
| New England Baptist Hospital | Boston, MA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Newton-Wellesley Hospital | Newton, MA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| North Adams Regional Hospital Corporation | North Adams, MA | Critical Access Hospitals | Government - Federal | Not rated |
| North Shore Medical Center - | Salem, MA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Northampton VA Medical Center | Leeds, MA | Acute Care - Veterans Administration | Veterans Health Administration | Not rated |
| Northeast Hospital Corporation | Beverly, MA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Norwood Hospital | Norwood, MA | Acute Care Hospitals | Proprietary | Not rated |
| Saint Anne's Hospital | Fall River, MA | Acute Care Hospitals | Proprietary | 3 stars |
| Signature Healthcare Brockton Hospital | Brockton, MA | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| South Shore Hospital | South Weymouth, MA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Southcoast Behavioral Health | Dartmouth, MA | Psychiatric | Proprietary | Not rated |
| Southcoast Hospitals Group | Fall River, MA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| St Vincent Hospital | Worcester, MA | Acute Care Hospitals | Proprietary | 2 stars |
| Sturdy Memorial Hospital | Attleboro, MA | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| Taravista Behavioral Health Center | Devens, MA | Psychiatric | Proprietary | Not rated |
| Taunton State Hospital | Taunton, MA | Psychiatric | Government - State | Not rated |
| The Shriners' Hospital for Children - Boston | Boston, MA | Childrens | Proprietary | Not rated |
| Tufts Medical Center | Boston, MA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Umass Memorial Health - Harrington Hospital | Southbridge, MA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Umass Memorial Healthalliance Hospitals | Leominster, MA | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| Umass Memorial Medical Center/University Campus | Worcester, MA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| VA Boston Healthcare System - Jamaica Plain | Jamaica Plain, MA | Acute Care - Veterans Administration | Veterans Health Administration | 4 stars |
| Valley Springs Behavioral Health Hospital | Holyoke, MA | Psychiatric | Proprietary | Not rated |
| Walden Behavioral Care, LLC | Dedham, MA | Psychiatric | Government - Federal | Not rated |
| Westborough Behavioral Healthcare Hospital LLC | Westborough, MA | Psychiatric | Proprietary | Not rated |
| Westwood Pembroke Health Systems | Westwood, MA | Psychiatric | Proprietary | Not rated |
| Whittier Pavilion | Haverhill, MA | Psychiatric | Proprietary | Not rated |
| Winchester Hospital | Winchester, MA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Worcester Recovery Center and Hospital | Worcester, MA | Psychiatric | Government - State | Not rated |