May 20, 2026 8:00am Notification: All office and center locations will be closed on Monday May 25th for Memorial Day. We will re-open on Tuesday May 26th.
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Medical Offices
Williamsville Wheatfield Orchard Park
Centers
Endoscopy Center of WNY, LLC Endoscopy Center of Niagara, LLC Endoscopy Center of WNY-Orchard Park- Opening 2026
Other Centers
Niagara Ambulatory Surgery Center Center for Ambulatory Surgery
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Our Physicians

Elizabeth Gregory, M.D.

Elizabeth Gregory, M.D.
Craig Keller, M.D.

Craig Keller, M.D.
Natalie Penn, M.D.

Natalie Penn, M.D.
Benjamin Schaus, D.O.

Benjamin Schaus, D.O.

Our Advanced Practice Providers

Carrin Clifford, FNP-BC

Carrin Clifford, FNP-BC
Alexandria Galluzzi, PA-C

Alexandria Galluzzi, PA-C