Hospitals in Ventura County, California
7 Medicare-certified hospitals, sorted by CMS overall rating (a national standard — not curved within California). “Not rated” is CMS’s own suppression, never a judgment.
| Hospital | City | CMS rating | ER |
|---|---|---|---|
| Community Memorial Hospital - Ventura | Ventura | ★★★★★4 | Yes |
| Los Robles Hospital & Medical Center | Thousand Oaks | ★★★★★4 | Yes |
| St Johns Regional Medical Center | Oxnard | ★★★★★4 | Yes |
| Adventist Health Simi Valley | Simi Valley | ★★★★★2 | Yes |
| Ventura County Medical Center | Ventura | ★★★★★2 | Yes |
| Aurora Vista Del Mar Hospital | Ventura | not rated | No |
| Community Memorial Hospital - Ojai | Ojai | not rated | Yes |
Data: Centers for Medicare & Medicaid Services (data.cms.gov), last updated April 28, 2026. This site is not affiliated with CMS or any government agency.