Hospitals in St. Tammany County, Louisiana
8 Medicare-certified hospitals, sorted by CMS overall rating (a national standard — not curved within Louisiana). “Not rated” is CMS’s own suppression, never a judgment.
| Hospital | City | CMS rating | ER |
|---|---|---|---|
| St Tammany Parish Hospital | Covington | ★★★★★4 | Yes |
| Slidell Memorial Hospital | Slidell | ★★★★★2 | Yes |
| Avala | Covington | not rated | No |
| Beacon Behavioral Hospital - Northshore, LLC | Lacombe | not rated | No |
| Greenbrier Behavioral Health | Covington | not rated | No |
| Northlake Behavioral Health System | Mandeville | not rated | No |
| Our Lady of the Lake Surgical Hospital | Slidell | not rated | No |
| Sterling Surgical Hospital | Slidell | not rated | No |
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.