HealthCareAtlasUSA

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Doctors / NY

JOHN M CALLAHAN, MD

INTERNAL MEDICINE

Medical school: STATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY

Graduated: 1986

Also: HOSPITALIST

NPI: 1568454528

Practice Locations (4)

PHYSICIAN MOBILE MEDICAL CARE PC

BUFFALO, NY 14202

7168931010

MOBILE PHYSICIAN SERVICES PLLC

40 LA RIVIERE DR, SUITE 201

BUFFALO, NY 142024036

7168931010210

ST JOSEPHS MEDICAL PC

301 PROSPECT AVE

SYRACUSE, NY 132031807

3154485480

CROUSE HEALTH HOSPITAL INC

736 IRVING AVE

SYRACUSE, NY 132101602

3154707111

Source: CMS National Downloadable File, September 2026.

JOHN CALLAHAN, MD | HealthCareAtlasUSA