HealthCareAtlasUSA

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Doctors / MA

MARY B CALLAHAN, MD

CARDIOVASCULAR DISEASE (CARDIOLOGY)

Medical school: UNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE

Graduated: 1992

NPI: 1518968882

Practice Locations (1)

68A ROUTE 6A

SANDWICH, MA 025631864

7744135457

Source: CMS National Downloadable File, September 2026.