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
SURGERY CENTER OF DES MOINES WEST	10 As expected	2.4 As expected	—	0.9 As expected	0.038	97	96	315
West Lakes Surgery Center Llc	—	2.3 As expected	5.3 As expected	1.2 As expected	0.05	92	91	103
MERCY RIVER HILLS SURGERY CENTER	—	2.8 As expected	—	1.2 As expected	0.153	96	95	383
ORTHOPAEDIC OUTPATIENT SURGERY CENTER	—	2.2 As expected	—	—	0.042	97	97	215
Waukee Surgery Center LLC	—	2.4 As expected	—	—	0.114	97	95	512
IOWA ENDOSCOPY CENTER	9 As expected	—	—	—	0.035	95	95	139
LAKEVIEW SURGERY CENTER	—	2.3 As expected	6 As expected	0.9 As expected	0.105	97	97	223
THE IOWA CLINIC ENDOSCOPY CENT	8.5 As expected	—	—	—	0.053	97	96	214
WOLFE SURGERY CENTER, LLC	—	—	—	0.9 As expected	0.083	97	96	254
WESTOWN AMBULATORY CENTER	—	—	—	—	0	—	—	—
Surgery Centers of Iowa	—	—	—	—	—	94	95	142
ADVANCED SURGERY CENTER OF CENTRAL IA	—	3.1 As expected	—	—	—	—	—	—

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 19780; the area name is the U.S. Census Bureau's own title for it, not one we invented.