Surgery Center Benchmarks working name

Middlebrook Surgery Center

1210 Tennova Medical Way, Knoxville, TN 37909

CMS Certification Number 44C0001206

Operating rooms
3
Procedure rooms
0
Ownership
Proprietary

Case types filed with CMS

EndoscopyOB/GYN surgeryOtolaryngologyOther 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 126 cases
Colonoscopy: 10.2 · national 9.9 · 95% interval 7.3–14.4 · 126 cases · No Different Than the National Rate 10.2
No Different Than the National Rate
General surgery 71 cases
General surgery: 1 · national 1 · 95% interval 0.5–1.7 · 71 cases · No Different than expected 1
No Different than expected

Also filed, without a publishable rate: Orthopedic.

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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.