Hospital rankings
Hospitals in New Hampshire with the lowest serious complications
13 New Hampshire hospitals ranked by serious complications in the 2026 Medicare (CMS) data. Leading: Wentworth-Douglass Hospital, Parkland Medical Center, St Joseph Hospital. Filter by type, ownership and size, choose the measures you care about, and sort by any column.
| # | Hospital | Serious complicationslower is better | Central line bloodstream infectionslower is better | Catheter-associated urinary tract infectionslower is better | Surgical site infections (colon)lower is better | Surgical site infections (hysterectomy)lower is better | MRSA bloodstream infectionslower is better | C. diff infectionslower is better | Compare |
|---|---|---|---|---|---|---|---|---|---|
| National average | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||
| 1 | Wentworth-Douglass Hospital | 0.75, 97th percentile | 0.62, 37th percentile | 0.60, 31st percentile | 0.00, 91st percentile | — | 0.00, 91st percentile | 0.35, 39th percentile | Compare Wentworth-Douglass Hospital |
| 2 | Parkland Medical Center | 0.87, 81st percentile | — | 0.00, 88th percentile | — | — | — | 0.35, 40th percentile | Compare Parkland Medical Center |
| 3 | St Joseph Hospital | 0.92, 67th percentile | 0.39, 59th percentile | 0.56, 35th percentile | 1.45, 15th percentile | — | 0.42, 66th percentile | 0.29, 48th percentile | Compare St Joseph Hospital |
| T4 | Concord Hospital- Laconia | 0.94, 59th percentile | — | 0.69, 25th percentile | 0.47, 66th percentile | — | — | 0.83, 9th percentile | Compare Concord Hospital- Laconia |
| T4 | Portsmouth Regional Hospital | 0.94, 59th percentile | 0.37, 60th percentile | 0.25, 64th percentile | 1.05, 29th percentile | — | 0.00, 91st percentile | 0.29, 48th percentile | Compare Portsmouth Regional Hospital |
| 6 | Concord Hospital | 0.96, 51st percentile | 0.27, 69th percentile | 0.54, 37th percentile | 0.00, 91st percentile | — | 0.25, 77th percentile | 0.77, 10th percentile | Compare Concord Hospital |
| 7 | Frisbie Memorial Hospital | 0.98, 41st percentile | — | — | — | — | — | 0.60, 18th percentile | Compare Frisbie Memorial Hospital |
| 8 | Exeter Hospital Inc | 1.00, 35th percentile | 0.00, 90th percentile | 1.38, 5th percentile | 0.23, 78th percentile | — | 0.67, 44th percentile | 0.29, 49th percentile | Compare Exeter Hospital Inc |
| 9 | Cheshire Medical Center | 1.01, 33rd percentile | — | 0.86, 16th percentile | 0.00, 91st percentile | — | 0.00, 91st percentile | 0.47, 27th percentile | Compare Cheshire Medical Center |
| 10 | Southern NH Medical Center | 1.02, 31st percentile | 0.72, 30th percentile | 0.44, 45th percentile | 1.12, 27th percentile | — | 0.60, 49th percentile | 0.26, 52nd percentile | Compare Southern NH Medical Center |
| 11 | Mary Hitchcock Memorial Hospital | 1.18, 12th percentile | 0.79, 26th percentile | 0.37, 52nd percentile | 1.70, 10th percentile | 3.35, 3rd percentile | 0.44, 64th percentile | 0.48, 26th percentile | Compare Mary Hitchcock Memorial Hospital |
| 12 | Elliot Hospital | 1.31, 6th percentile | 0.00, 90th percentile | 0.96, 12th percentile | 1.05, 30th percentile | 1.51, 26th percentile | 0.27, 76th percentile | 0.43, 30th percentile | Compare Elliot Hospital |
| 13 | Catholic Medical Center | 1.39, 4th percentile | 0.00, 90th percentile | 0.56, 35th percentile | 0.00, 91st percentile | — | 0.36, 70th percentile | 0.62, 17th percentile | Compare Catholic Medical Center |
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.
- Serious complications
- Patient safety and adverse events composite (PSI 90; 1.0 = national value).
- Central line bloodstream infections
- Central line-associated bloodstream infections (CLABSI) in ICUs and select wards (standardized infection ratio; 1.0 = national baseline).
- Catheter-associated urinary tract infections
- Catheter-associated urinary tract infections (CAUTI) in ICUs and select wards (standardized infection ratio; 1.0 = national baseline).
- Surgical site infections (colon)
- Surgical site infections from colon surgery (standardized infection ratio; 1.0 = national baseline).
- Surgical site infections (hysterectomy)
- Surgical site infections from abdominal hysterectomy (standardized infection ratio; 1.0 = national baseline).
- MRSA bloodstream infections
- Methicillin-resistant Staphylococcus aureus (MRSA) blood laboratory-identified events (standardized infection ratio; 1.0 = national baseline).
- C. diff infections
- Clostridium difficile (C. diff) intestinal infections (standardized infection ratio; 1.0 = national baseline).