Individual provider · Type 1 NPI

Christopher M. Callahan, MD

Geriatric Medicine (Internal Medicine) Physician · Indianapolis, IN

NPI number 1104867043 Active

Practice location

1633 N Capitol Ave, Ste 322
Indianapolis, IN 46202-1476

Call (317) 962-2929 Map

Fax (317) 962-2070

Mailing address

250 N Shadeland Ave
Indianapolis, IN 46219-4959

Other practice locations

  • 720 Eskenazi Ave, Indianapolis, IN 46202-5187 · (317) 880-7666

Specialties and licenses

TaxonomyCodeLicense
Geriatric Medicine (Internal Medicine) Physician Primary 207RG0300X01036319A (IN)
Internal Medicine Physician 207R00000X01036319A (IN)

Geriatric Medicine (Internal Medicine) Physician: An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

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About NPI 1104867043

Christopher M. Callahan, MD's National Provider Identifier is 1104867043, issued on Jun 10, 2006. The primary taxonomy on file is Geriatric Medicine (Internal Medicine) Physician (207RG0300X), and the practice location is in Indianapolis, IN. The record was last updated on Sep 15, 2025.