Surgery Center Benchmarks

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

Safety and process measures

MeasureRateNote
Patient burn 0
Patient fall 0.057
Wrong site / side / patient / procedure / implant 0.011
Hospital transfer or admission 0.113
Normothermia 100

What patients said

MeasureScore (0–100)
Overall rating of the facility96
Would recommend the facility94
Facilities and staff99
Communication about the procedure96

183 completed surveys · 41% response rate · Survey period 10/01/2024 – 09/30/2025

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.