◧ Surgery Center Benchmarks working name

MASON CITY AMBULATORY SURGERY CENTER LLC

990 4TH STREET SOUTHWEST, MASON CITY, IA 50401 · (641) 494-2000

CMS Certification Number 16C0001024

Operating rooms
7
Procedure rooms
0
Ownership
Proprietary

Case types filed with CMS

EndoscopyFoot surgeryOB/GYN surgeryOphthalmologyOrthopedic surgeryOtolaryngologyPain managementPlastic surgeryOther surgery

Hospital visits after surgery

CMS risk-standardized rate of a hospital visit within 7 days, per 100 cases. The pale band is the 95% interval — where it overlaps the national mark, this center is not meaningfully different from average.

This center National rate
Colonoscopy 1927 cases
Colonoscopy: 9.8 · national 9.9 · 95% interval 7.5–13 · 1927 cases · No Different Than the National Rate 9.8
No Different Than the National Rate
Orthopedic 416 cases
Orthopedic: 2.6 · national 2.4 · 95% interval 1.8–3.9 · 416 cases · No Different Than the National Rate 2.6
No Different Than the National Rate
Urology 320 cases
Urology: 7.3 · national 5.4 · 95% interval 5.4–9.9 · 320 cases · No Different Than the National Rate 7.3
No Different Than the National Rate
General surgery 300 cases
General surgery: 1.3 · national 1 · 95% interval 0.8–2 · 300 cases · No Different than expected 1.3
No Different than expected

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Sources: CMS Provider of Services file (iQIES, 2026 Q2) — address, case types, room counts; CMS ASCQR facility-level file (reporting year 2024) — quality measures; CMS OAS CAHPS facility file — patient experience. Rates are reproduced as CMS publishes them; nothing here is scored or weighted by us. Not medical advice.