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
CHRISTUS SANTA ROSA PASC-SAN ANTONIO LLC	10.7 As expected	2.1 As expected	—	1.2 As expected	0.078	96	94	121
METHODIST AMBULATORY SURGERY C	10.4 As expected	2.7 As expected	—	1 As expected	0.124	97	96	345
METHODIST SURGERY CENTER BOERNE	9.8 As expected	2.4 As expected	—	1 As expected	0.217	97	96	372
CHRISTUS SANTA ROSA OUTPATIENT SURGERY CENTER NEW	10.5 As expected	2.4 As expected	—	0.9 As expected	0.319	97	96	119
METHODIST AMBULATORY SURGERY CENTER LANDMARK, LLC	10.6 As expected	3.1 As expected	—	1 As expected	0.253	97	95	243
METHODIST AMBULATORY SURGERY MEDICAL CENTER	9.4 As expected	—	—	1 As expected	0.142	96	94	469
UT Health KSP ASC	10.1 As expected	—	—	—	0	96	94	91
CHRISTUS SANTA ROSA PHYSICIANS ASC STONE OAK	—	2.7 As expected	—	0.9 As expected	0	97	96	99
SURGERY CENTER OF BOERNE	9.5 As expected	2.4 As expected	—	—	0.105	98	97	233
GASTROENTEROLOGY CONSULTANTS OF SAN ANTONIO - NE	9.3 As expected	—	—	—	0.064	97	97	251
GASTROENTEROLOGY CONSULTANTS OF SAN ANTONIO MEDICA	10.5 As expected	—	—	—	0.062	95	95	284
GASTROENTEROLOGY CONSULTANTS OF SAN ANTONIO STONE	7.9 As expected	—	—	—	0.067	96	95	250
Huebner Ambulatory Surgery Center, LLC	—	2.3 As expected	—	—	0.229	94	93	267
METHODIST SURGERY CENTER TEXAS CENTER FOR ATHLETES	—	2.4 As expected	—	0.9 As expected	0.069	96	95	293
NEW BRAUNFELS SURGERY CENTER	—	—	—	—	0.046	95	94	98
RIDGEWOOD ORTHOPAEDIC SURGERY CENTER OF SAN ANTONIO	—	2.3 As expected	—	1.1 As expected	0.06	95	93	206
Stone Oak Surgery Center	—	2.3 As expected	—	—	0.197	96	97	445
PASTEUR PLAZA SURGERY CENTER	—	—	5.3 As expected	—	0.211	94	94	96
THEDA OAKS GASTROENTEROLOGY AND ENDOSCOPY CENTER	9.5 As expected	—	—	—	0.118	94	93	161
AMERICAN SURGERY CENTERS	—	—	—	—	0	95	96	69
RIDGEWOOD ORTHOPAEDIC SURGERY CENTER OF SA	—	—	—	—	0.062	97	97	226
SAN ANTONIO ENDOSCOPY CENTER	9.3 As expected	—	—	—	0.043	96	96	206
SOUTH TEXAS AMBULATORY SURGERY CENTER PLLC	—	—	—	1.2 As expected	0.049	96	95	206
SAN ANTONIO EYE SURGICENTER	—	—	—	—	0.023	94	96	102
ADVANCED SURGERY CENTER OF SAN ANTONIO LLC	—	2.4 As expected	—	—	0.059	96	94	102
ADVANCED SURGICAL CARE OF BOERNE LLC	9.7 As expected	—	—	—	—	96	96	365
EYE 35 ASC LLC	—	—	—	—	0.03	98	96	150
First Choice Ambulatory Surgical Center LLC	—	2.4 As expected	—	0.9 As expected	0.061	97	96	171
CHRISTUS SURGERY CENTER OLYMPIA HLLS	—	2.6 As expected	—	—	—	94	91	59
AZURA SURGERY CENTER STAR	—	—	—	—	0.131	94	89	223
COMFORT SURGERY CENTER OF SAN ANTONIO, LLC	—	—	—	—	—	97	97	195
GAB ENDOSCOPY CENTER	9.7 As expected	—	—	—	—	96	95	416
Lenza Surgical Center	—	—	—	—	—	94	94	64
NUVISION SAME DAY PROCEDURE CENTER LLC	—	—	—	—	—	93	90	134
OCULAR SURGERY CENTER INC,THE	—	—	—	—	—	90	90	55
SAN ANTONIO GASTROENTEROLOGY ENDOSCOPY CENTER - DOWNTON	10.9 As expected	—	—	—	—	95	94	1829
San Antonio Gastroenterology Endoscopy Center - Medical Center	10.8 As expected	—	—	—	—	97	94	961
SAN ANTONIO GASTROENTEROLOGY ENDOSCOPY CENTER - NORTH	11.6 As expected	—	—	—	—	97	96	833
SURGICAL EYE CENTER OF SAN ANTONIO	—	—	—	—	—	96	97	100
Cibolo Creek Surgery Center	—	—	—	—	—	98	98	49
Legent Westover Hills	—	2.4 As expected	—	—	7.692	—	—	—
TOTAL VASCULAR CARE	—	—	—	—	0.829	—	—	—
SONTERRA PROCEDURE CENTER LLC	10.1 As expected	—	—	1.1 As expected	—	—	—	—
CENTRUM SURGERY CENTER LLC	—	—	—	—	—	—	—	—
Christus Orthopedic San Antonio Surgery Center	—	—	—	—	—	—	—	—
MARC ASC	—	—	—	—	—	—	—	—
Mission Surgery Center	—	—	—	—	—	—	—	—
SAKDC Surgical Center, PLLC	—	—	—	—	—	—	—	—
SAN ANTONIO CHILDREN'S SURGICAL	—	—	—	—	—	—	—	—
SOUTH TEXAS SURGICAL INSTITUTE	—	—	—	—	—	—	—	—
ST. RAPHAEL'S SURGERY CENTER	—	—	—	—	—	—	—	—
SURGICAL ARTS CENTER	—	—	—	—	—	—	—	—
TEXAS SPINE AND JOINT SURGICAL CENTER	—	—	—	—	—	—	—	—
US CARDIO OF SA, LLC	—	—	—	—	—	—	—	—

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 41700; the area name is the U.S. Census Bureau's own title for it, not one we invented.