HealthCareAtlasUSA

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Doctors / MD

JOHN MASON ERWIN, CNA

CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)

Graduated: 2012

NPI: 1386980969

Practice Locations (2)

MERITUS MEDICAL CENTER INC

11116 MEDICAL CAMPUS RD

HAGERSTOWN, MD 217426710

3017908000

CITY HOSPITAL INC

2500 HOSPITAL DR

MARTINSBURG, WV 254013402

3042601443

Source: CMS National Downloadable File, September 2026.

JOHN ERWIN, CNA | HealthCareAtlasUSA