Surgery Center Benchmarks

AURORA 84 SOUTH AMBULATORY SURGERY CENTER

9000 WEST SURA LANE, GREENFIELD, WI 53228 · (414) 246-6800

CMS Certification Number 52C0001126

Operating rooms
16
Procedure rooms
0
Ownership
Non-Profit

Case types filed with CMS

EndoscopyFoot surgeryOB/GYN surgeryOrthopedic surgeryOtolaryngologyPain managementPlastic 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 768 cases
Colonoscopy: 9 · national 9.9 · 95% interval 6.6–12.3 · 768 cases · No Different Than the National Rate 9
No Different Than the National Rate
Orthopedic 123 cases
Orthopedic: 2.3 · national 2.4 · 95% interval 1.4–3.6 · 123 cases · No Different Than the National Rate 2.3
No Different Than the National Rate
General surgery 45 cases
General surgery: 1 · national 1 · 95% interval 0.5–1.8 · 45 cases · No Different than expected 1
No Different than expected

Also filed, without a publishable rate: Urology.

Safety and process measures

MeasureRateNote
Patient burn 0.008
Patient fall 0.008
Wrong site / side / patient / procedure / implant 0
Hospital transfer or admission 0.097
Normothermia 97.91

What patients said

MeasureScore (0–100)
Overall rating of the facility96
Would recommend the facility95
Facilities and staff99
Communication about the procedure97

500 completed surveys · 17% 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.