377 hospitals in California, of which 279 carry a CMS overall star rating (average 3.10 of 5). Below are the highest-rated.
| Hospital | City | CMS rating |
|---|---|---|
| Adventist Health Howard Memorial | Willits | 5 of 5 |
| Alta Bates Summit Medical Center | Oakland | 5 of 5 |
| Cedars-Sinai Medical Center | Los Angeles | 5 of 5 |
| French Hospital Medical Center | San Luis Obispo | 5 of 5 |
| Fresno Va Medical Center (Va Central California Healthcare System) | Fresno | 5 of 5 |
| Goleta Valley Cottage Hospital | Santa Barbara | 5 of 5 |
| Hoag Memorial Hospital Presbyterian | Newport Beach | 5 of 5 |
| Kaiser Foundation Hospital - Los Angeles | Los Angeles | 5 of 5 |
| Keck Hospital Of Usc | Los Angeles | 5 of 5 |
| Marinhealth Medical Center | Greenbrae | 5 of 5 |
See every hospital in California with its measure groups, ownership, emergency-services flag and contact details: California hospitals directory.
CMS combines mortality, safety, readmission, patient experience and timely-care measures, each compared with what is expected for similar hospitals. Small or specialty hospitals with too few measures are unrated — unrated is not a bad rating.
Compare states: which states have the best-rated hospitals?