Hospital rankings

Hospitals in New Hampshire with the lowest surgical site infections (colon)

11 New Hampshire hospitals ranked by surgical site infections (colon) in the 2026 Medicare (CMS) data. Leading: Catholic Medical Center, Cheshire Medical Center, Wentworth-Douglass Hospital. Filter by type, ownership and size, choose the measures you care about, and sort by any column.

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11 hospitals ranked in New Hampshire by surgical site infections (colon); 16 more match but have no reported value.

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Hospital rankings, page 1 of 1. Columns can be sorted.
#	Hospital	Surgical site infections (colon)lower 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	1.00		3.3	11.9%	11.1%	15.0%	1.00	162 min	1.00
T1	Catholic Medical CenterManchester, NH · Acute care	0.00, 91st percentile	4, 73rd percentile	3, 39th percentile	10.1%, 95th percentile	9.0%, 86th percentile	15.7%, 13th percentile	1.39, 4th percentile	221 min, 11th percentile	0.97, 61st percentile	330	Compare Catholic Medical Center
T1	Cheshire Medical CenterKeene, NH · Acute care	0.00, 91st percentile	4, 73rd percentile	3, 39th percentile	12.2%, 35th percentile	11.5%, 39th percentile	14.9%, 54th percentile	1.01, 33rd percentile	214 min, 13th percentile	0.97, 61st percentile	169	Compare Cheshire Medical Center
T1	Wentworth-Douglass HospitalDover, NH · Acute care	0.00, 91st percentile	4, 73rd percentile	4, 76th percentile	10.2%, 93rd percentile	11.6%, 37th percentile	15.2%, 34th percentile	0.75, 97th percentile	242 min, 6th percentile	0.94, 76th percentile	178	Compare Wentworth-Douglass Hospital
T1	Concord HospitalConcord, NH · Acute care	0.00, 91st percentile	3, 43rd percentile	3, 39th percentile	13.5%, 8th percentile	12.6%, 20th percentile	15.2%, 34th percentile	0.96, 51st percentile	243 min, 6th percentile	1.00, 44th percentile	295	Compare Concord Hospital
5	Exeter Hospital IncExeter, NH · Acute care	0.23, 78th percentile	4, 73rd percentile	3, 39th percentile	14.5%, 2nd percentile	10.9%, 52nd percentile	14.0%, 93rd percentile	1.00, 35th percentile	206 min, 16th percentile	0.97, 61st percentile	100	Compare Exeter Hospital Inc
6	Concord Hospital- LaconiaLaconia, NH · Acute care	0.47, 66th percentile	3, 43rd percentile	3, 39th percentile	10.7%, 85th percentile	12.5%, 22nd percentile	15.6%, 16th percentile	0.94, 59th percentile	197 min, 20th percentile	0.97, 61st percentile	143	Compare Concord Hospital- Laconia
7	Elliot HospitalManchester, NH · Acute care	1.05, 30th percentile	2, 17th percentile	4, 76th percentile	14.2%, 3rd percentile	12.9%, 17th percentile	15.4%, 23rd percentile	1.31, 6th percentile	291 min, 2nd percentile	1.01, 38th percentile	296	Compare Elliot Hospital
8	Portsmouth Regional HospitalPortsmouth, NH · Acute care	1.05, 29th percentile	3, 43rd percentile	3, 39th percentile	10.9%, 80th percentile	13.1%, 14th percentile	15.4%, 23rd percentile	0.94, 59th percentile	132 min, 63rd percentile	1.02, 33rd percentile	209	Compare Portsmouth Regional Hospital
9	Southern NH Medical CenterNashua, NH · Acute care	1.12, 27th percentile	2, 17th percentile	3, 39th percentile	13.8%, 5th percentile	10.5%, 60th percentile	15.6%, 16th percentile	1.02, 31st percentile	218 min, 12th percentile	0.98, 55th percentile	188	Compare Southern NH Medical Center
10	St Joseph HospitalNashua, NH · Acute care	1.45, 15th percentile	4, 73rd percentile	3, 39th percentile	11.0%, 77th percentile	12.9%, 17th percentile	14.5%, 79th percentile	0.92, 67th percentile	202 min, 18th percentile	1.02, 33rd percentile	208	Compare St Joseph Hospital
11	Mary Hitchcock Memorial HospitalLebanon, NH · Acute care	1.70, 10th percentile	3, 43rd percentile	3, 39th percentile	11.3%, 68th percentile	10.4%, 62nd percentile	15.2%, 34th percentile	1.18, 12th percentile	264 min, 3rd percentile	1.02, 33rd percentile	396	Compare Mary Hitchcock Memorial 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.

Surgical site infections (colon): Surgical site infections from colon surgery (standardized infection ratio; 1.0 = national baseline).
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).