| Memorial Care Miller Children's & Women's Hosp Lb | Long Beach, CA | Childrens | Voluntary non-profit - Other | Not rated |
| Memorial Hospital los Banos | Los Banos, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Memorial Hospital of Gardena | Gardena, CA | Acute Care Hospitals | Proprietary | 1 star |
| Memorial Medical Center | Modesto, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Memorialcare Long Beach Medical Center | Long Beach, CA | Acute Care Hospitals | Voluntary non-profit - Other | 2 stars |
| Memorialcare Orange Coast Medical Center | Fountain Valley, CA | Acute Care Hospitals | Proprietary | 4 stars |
| Memorialcare Saddleback Medical Center | Laguna Hills, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Menifee Global Medical Center | Sun City, CA | Acute Care Hospitals | Proprietary | Not rated |
| Mercy General Hospital | Sacramento, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Mercy Hospital | Bakersfield, CA | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| Mercy Hospital of Folsom | Folsom, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Mercy Medical Center | Merced, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Mercy Medical Center of Mt Shasta | Mount Shasta, CA | Critical Access Hospitals | Voluntary non-profit - Other | 4 stars |
| Mercy Medical Center Redding | Redding, CA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Mercy San Juan Medical Center | Carmichael, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Methodist Hospital of Sacramento | Sacramento, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Mission Community Hospital | Panorama City, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Modoc Medical Center | Alturas, CA | Critical Access Hospitals | Government - Hospital District or Authority | 4 stars |
| Montclair Hospital Medical Center | Montclair, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Monterey Park Hospital | Monterey Park, CA | Acute Care Hospitals | Proprietary | 2 stars |
| Mountains Community Hospital | Lake Arrowhead, CA | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Natividad Medical Center | Salinas, CA | Acute Care Hospitals | Government - Local | 3 stars |
| NH Camp Pendleton | Camp Pendleton, CA | Acute Care - Department of Defense | Department of Defense | Not rated |
| NH Twentynine Palms | Twentynine Palms, CA | Acute Care - Department of Defense | Department of Defense | Not rated |
| NMC San Diego | San Diego, CA | Acute Care - Department of Defense | Department of Defense | Not rated |
| Northbay Medical Center | Fairfield, CA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Northern Inyo Hospital | Bishop, CA | Critical Access Hospitals | Government - Hospital District or Authority | 3 stars |
| Northridge Hospital Medical Center | Northridge, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Novato Community Hospital | Novato, CA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Oak Valley Hospital District | Oakdale, CA | Acute Care Hospitals | Government - Hospital District or Authority | 1 star |
| Ocean View Psychiatric Health Facility | Long Beach, CA | Psychiatric | Proprietary | Not rated |
| Orange County Global Medical Center | Santa Ana, CA | Acute Care Hospitals | Proprietary | 2 stars |
| Orchard Hospital | Gridley, CA | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Oroville Hospital | Oroville, CA | Acute Care Hospitals | Voluntary non-profit - Private | 1 star |
| Pacific Grove Hospital | Riverside, CA | Psychiatric | Proprietary | Not rated |
| Pacifica Hospital of the Valley | Sun Valley, CA | Acute Care Hospitals | Proprietary | Not rated |
| Palmdale Regional Medical Center | Palmdale, CA | Acute Care Hospitals | Proprietary | 3 stars |
| Palo Alto VA Medical Center | Palo Alto, CA | Acute Care - Veterans Administration | Veterans Health Administration | 5 stars |
| Palo Verde Hospital | Blythe, CA | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Palomar Health Downtown Campus | Escondido, CA | Acute Care Hospitals | Government - Hospital District or Authority | 3 stars |
| Palomar Medical Center Poway | Poway, CA | Acute Care Hospitals | Government - Hospital District or Authority | 4 stars |
| Paradise Valley Hospital | National City, CA | Acute Care Hospitals | Proprietary | 3 stars |
| Parkview Community Hospital Medical Center | Riverside, CA | Acute Care Hospitals | Proprietary | 3 stars |
| Patients' Hospital of Redding | Redding, CA | Acute Care Hospitals | Proprietary | Not rated |
| Peninsula Medical Center | Burlingame, CA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Petaluma Valley Hospital | Petaluma, CA | Acute Care Hospitals | Voluntary non-profit - Other | 4 stars |
| PIH Health Downey Hospital | Downey, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| PIH Health Good Samaritan Hospital | Los Angeles, CA | Acute Care Hospitals | Proprietary | 2 stars |
| PIH Health Hospital-Whittier | Whittier, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Pioneers Memorial Healthcare District | Brawley, CA | Acute Care Hospitals | Government - Hospital District or Authority | 3 stars |