One measure shown per center — the one with reportable case volume. Every center reports on a different mix, which is why the full grid below is worth reading.

Center	Colonoscopy nat 9.9	Orthopedic nat 2.4	Urology nat 5.4	General surgery nat 1	Transfer rate	Rating	Recommend	Surveys
ORCHARD SURGICAL CENTER, LLC	9.7 As expected	2.3 As expected	6.7 As expected	—	0.138	97	97	214
WENTWORTH SURGERY CENTER, LLC	10 As expected	2.9 As expected	—	—	0.12	95	94	270
SURGICAL CENTER OF NEW HAMPSHIRE AT DERRY	9.5 As expected	—	—	—	0.171	96	95	212
NEW ENGLAND CENTER FOR ORTHOPAEDIC SURGERY	—	2.4 As expected	—	—	0.248	97	98	486
STRATHAM AMBULATORY SURGERY CENTER	10.8 As expected	2.8 As expected	—	—	0.058	94	93	134
ORTHOPAEDIC SURGERY CENTER DERRY	—	2.6 As expected	—	—	0	96	93	264
ACCESS AMBULATORY SURGERY CENTER, LLC	—	2.5 As expected	—	—	—	98	95	29
NORTH ATLANTIC SURGICAL SUITES LLC	—	2.2 As expected	—	—	0.105	98	97	223
Portsmouth Surgery Center	—	2.8 As expected	—	—	—	99	98	42
BARRINGTON SURGICAL CARE LLC	—	—	—	—	—	96	97	103
RYE SURGICAL CENTER, LLC	—	—	—	—	—	97	97	164

Rates are per-100 risk-standardized 7-day hospital visits; "nat" is the national rate for that measure. Rating and Recommend are OAS CAHPS linear mean scores (0–100). A dash means CMS did not report a value — usually too few cases, which is not a bad score.

Sources: CMS Provider of Services file (iQIES, 2026 Q2) for the facility list, specialties and room counts; CMS ASCQR facility-level quality measures; CMS OAS CAHPS patient survey. Metro grouping is by CBSA code 40484; the area name is the U.S. Census Bureau's own title for it, not one we invented.