Surgery Center Benchmarks

OA ASC LLC

33 SEWALL STREET, PORTLAND, ME 04102 · (207) 828-2100

CMS Certification Number 20C0001006

Operating rooms
3
Procedure rooms
3
Ownership
Proprietary

Case types filed with CMS

Orthopedic surgeryPlastic 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
Orthopedic 266 cases
Orthopedic: 2.2 · national 2.4 · 95% interval 1.4–3.4 · 266 cases · No Different Than the National Rate 2.2
No Different Than the National Rate

Also filed, without a publishable rate: General surgery.

Safety and process measures

MeasureRateNote
Patient burn 0
Patient fall 0.067
Wrong site / side / patient / procedure / implant 0
Hospital transfer or admission 0.033
Normothermia 0.12

What patients said

MeasureScore (0–100)
Overall rating of the facility95
Would recommend the facility95
Facilities and staff98
Communication about the procedure97

177 completed surveys · 20% 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.