HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / NY

STEPHEN MICHAEL CASTALDI, PA

PHYSICIAN ASSISTANT

Graduated: 2025

NPI: 1982558680

Practice Locations (1)

UNIVERSITY EMERGENCY MEDICAL SERVICES INC.

1540 MAPLE RD

WILLIAMSVILLE, NY 142213647

7165683600

Source: CMS National Downloadable File, September 2026.

STEPHEN CASTALDI, PA | HealthCareAtlasUSA