Hospitals in Union County, New Jersey
5 Medicare-certified hospitals, sorted by CMS overall rating (a national standard — not curved within New Jersey). “Not rated” is CMS’s own suppression, never a judgment.
| Hospital | City | CMS rating | ER |
|---|---|---|---|
| Overlook Medical Center | Summit | ★★★★★5 | Yes |
| Robert Wood Johnson University Hospital at Rahway | Rahway | ★★★★★4 | Yes |
| Trinitas Regional Medical Center | Elizabeth | ★★★★★3 | Yes |
| Mountainview Behavioral Hospital | Berkeley Heights | not rated | No |
| Summit Oaks Hospital | Summit | 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.