Emergency Medicine
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William Charles O'callahan JR. is a graduate of University Of Massachusetts Medical School (1990) and specializes in Emergency Medicine. With 36 years of experience, they are committed to providing quality patient care.
36
Years Experience
Primary Specialty
Emergency MedicineCredentials verified via NPI Registry (NPPES)
Medical School
University Of Massachusetts Medical School
Class of 1990
No language information on file.
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