Surgery Center Benchmarks

Cornerstone Surgery Center & Anesthesia Nursing Services Inc.

10694 Magnolia Avenue, RIVERSIDE, CA 92505 · (951) 335-5230

CMS Certification Number 55C0001204

Operating rooms
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Procedure rooms
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Ownership
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Hospital visits after surgery

No measure here has enough case volume for CMS to publish a rate. That is a reporting threshold, not a poor result.

Safety and process measures

No safety measures reported for this center.

What patients said

This center has no published OAS CAHPS results — participation is voluntary and small centers often fall below the survey threshold.

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.