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
Guaynabo Ambulatory Surgical Group Inc	—	—	—	—	0.01	97	97	187
EYE SURGERY SPECIALIST PR LLC	—	—	—	—	0.03	97	97	185
Caguas Ambulatory Surgical Center Inc	—	2.1 As expected	—	—	0.028	—	—	—
CENTRO DE CIRUGIA AMBULATORIA LAS AMERICA	—	2.2 As expected	—	—	—	—	—	—
DE DIEGO AMBULATORY CLINIC CORP	—	2.3 As expected	5.1 As expected	—	—	—	—	—
AFSC OF SAN JUAN	—	—	—	—	—	—	—	—
CENTRO DE CIRUGIA AMBULATORIA DE PROCEDIMIENTOS UROLOGICO Y LITOTRIPCIA	—	—	4.8 As expected	—	—	—	—	—
CENTRO DE CIRUGIA UROLOGICA AMBULATORIA	—	—	—	—	—	—	—	—
INSTITUTO DE GASTROENTEROLOGIA DE PUERTO RICO	9.5 As expected	—	—	—	—	—	—	—
NORTHEAST CORPORATION	—	—	—	—	—	—	—	—
Advance Imaging And Interventional Center- Radiologia Intervencional	—	—	—	—	—	—	—	—
ADVANCE PAIN MANAGEMENT AND REHABILITATION INSTITU	—	—	—	—	—	—	—	—
CCALMA,INC	—	—	—	—	—	—	—	—
CENTRO QUIRURGICO DE LA MONTANA	—	—	—	—	—	—	—	—
INSTITUTO DE PODIATRIA Y PIE DIABETICO DE PR	—	—	—	—	—	—	—	—
INSTITUTO OJOS Y PIEL ASC	—	—	—	—	—	—	—	—

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 41980; the area name is the U.S. Census Bureau's own title for it, not one we invented.