The Derfner Foundation Ambulatory Surgery Center
5 East 98th Street, New York, NY 10029 · (212) 241-3364
CMS Certification Number 33C0001211
- 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.
Also filed, without a publishable rate: Orthopedic, Urology, General surgery.
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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.