Hospital rankings
Hospitals in California with the lowest left ED without being seen
259 California hospitals ranked by left ED without being seen in the 2026 Medicare (CMS) data. Filter by type, ownership and size, choose the measures you care about, and sort by any column.
| # | Hospital | Left ED without being seenlower is better | Overall star ratinghigher is better | Patient survey star ratinghigher is better | Heart attack death ratelower is better | Heart failure death ratelower is better | Hospital-wide readmission ratelower is better · 2025 data | Serious complicationslower is better | Time in emergency departmentlower is better | Medicare spending per patientlower is better | Total beds | Compare |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| National average | 2.0% | 3.3 | 11.9% | 11.1% | 15.0% | 1.00 | 162 min | 1.00 | ||||
| T246 | Highland Hospital | 6.0%, 3rd percentile | 1, 3rd percentile | 3, 39th percentile | 11.8%, 49th percentile | 13.3%, 12th percentile | 14.5%, 79th percentile | 1.06, 25th percentile | 182 min, 28th percentile | 1.00, 44th percentile | 613 | Compare Highland Hospital |
| T246 | Mad River Community Hospital | 6.0%, 3rd percentile | 1, 3rd percentile | 3, 39th percentile | — | 11.2%, 46th percentile | 14.9%, 54th percentile | 1.02, 31st percentile | 122 min, 72nd percentile | 0.91, 86th percentile | 80 | Compare Mad River Community Hospital |
| T253 | Zuckerberg San Francisco General Hospital & Trauma Center | 7.0%, 2nd percentile | 2, 17th percentile | 3, 39th percentile | 12.2%, 35th percentile | 7.5%, 97th percentile | 15.2%, 34th percentile | 1.12, 17th percentile | 300 min, 1st percentile | 0.91, 86th percentile | 367 | Compare Zuckerberg San Francisco General Hospital & Trauma Center |
| T253 | Huntington Beach Hospital | 7.0%, 2nd percentile | 1, 3rd percentile | 1, 1st percentile | — | 9.6%, 77th percentile | 14.8%, 61st percentile | 0.90, 73rd percentile | 158 min, 43rd percentile | 1.25, 1st percentile | 131 | Compare Huntington Beach Hospital |
| T255 | Cedars-Sinai Medical Center | 9.0%, 1st percentile | 5, 94th percentile | 3, 39th percentile | 8.3%, 100th percentile | 5.5%, 100th percentile | 14.3%, 86th percentile | 1.06, 25th percentile | 355 min, 0th percentile | 1.04, 23rd percentile | 877 | Compare Cedars-Sinai Medical Center |
| T255 | College Medical Center | 9.0%, 1st percentile | 3, 43rd percentile | — | — | — | 15.2%, 34th percentile | 0.92, 67th percentile | 322 min, 1st percentile | 1.36, 0th percentile | 157 | Compare College Medical Center |
| 257 | Ridgecrest Regional Hospital | 10.0%, 0th percentile | — | — | — | — | — | — | 195 min, 21st percentile | — | 72 | Compare Ridgecrest Regional Hospital |
| 258 | Kern Medical Center | 11.0%, 0th percentile | 1, 3rd percentile | 2, 10th percentile | — | 11.5%, 39th percentile | 15.3%, 28th percentile | 1.01, 33rd percentile | 306 min, 1st percentile | 0.98, 55th percentile | 222 | Compare Kern Medical Center |
| 259 | Oroville Hospital | 13.0%, 0th percentile | 1, 3rd percentile | 1, 1st percentile | 12.6%, 23rd percentile | 8.6%, 90th percentile | 19.3%, 0th percentile | 0.94, 59th percentile | 243 min, 6th percentile | 0.88, 92nd percentile | 133 | Compare Oroville Hospital |
About these rankings
Rankings use the 2026 release of CMS Care Compare data. Hospitals share a rank (“T”) when their values are equal, and only hospitals with a reported value for the sorted measure are ranked. Shading compares each value with every hospital in the country, so it doesn’t change with your filters. Small differences are often not statistically meaningful; use the methodology and glossary for context.
- Left ED without being seen
- Percentage of patients who left the emergency department before being seen.
- Overall star rating
- CMS overall hospital quality star rating (1-5).
- Patient survey star rating
- HCAHPS summary star rating (1-5).
- Heart attack death rate
- 30-day death rate for heart attack patients.
- Heart failure death rate
- 30-day death rate for heart failure patients.
- Hospital-wide readmission rate
- Rate of unplanned readmission within 30 days, all conditions. From 2025 CMS reports the Hybrid Hospital-Wide Readmission measure (claims plus EHR data), which replaced the claims-only measure; values are close but not strictly comparable across the change. CMS suppressed it for 2026.. Latest available: 2025 release.
- Serious complications
- Patient safety and adverse events composite (PSI 90; 1.0 = national value).
- Time in emergency department
- Median time patients spent in the emergency department before leaving.
- Medicare spending per patient
- Medicare spending per beneficiary episode relative to the national median (1.0 = national median).
- Total beds
- Total beds reported to CMS (Provider of Services file).