Hospital rankings
Hospitals in Massachusetts with the lowest left ED without being seen
53 Massachusetts 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 | Time in emergency departmentlower is better | Appropriate sepsis carehigher is better | Health care workers vaccinated for fluhigher is better | Compare |
|---|---|---|---|---|---|---|
| National average | 2.0% | 162 min | 65.0% | 78.0% | ||
| T50 | Mercy Medical Center | 8.0%, 1st percentile | 275 min, 2nd percentile | 51.0%, 20th percentile | 24.0%, 1st percentile | Compare Mercy Medical Center |
| 52 | Lowell General Hospital | 9.0%, 1st percentile | 267 min, 3rd percentile | 67.0%, 54th percentile | 95.0%, 88th percentile | Compare Lowell General Hospital |
| 53 | Anna Jaques Hospital | 23.0%, 0th percentile | 188 min, 25th percentile | 40.0%, 8th percentile | 95.0%, 88th percentile | Compare Anna Jaques 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.
- Time in emergency department
- Median time patients spent in the emergency department before leaving.
- Appropriate sepsis care
- Percentage of patients who received appropriate care for severe sepsis and septic shock.
- Health care workers vaccinated for flu
- Percentage of health care workers given influenza vaccination.