Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Michael Callahan, MD

Individual provider Gynecologic Oncology Physician · NPI 1548396492

Michael Callahan, MD is a Gynecological Oncology in Indianapolis, Indiana. Graduated from Indiana University School of Medicine in 1999, 27 years ago. Practices with St Vincent Physician Services Hospital and Health Care Center, a 282-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
27
Trained at
Indiana University School of Medicine
Licensed in
IN
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

8402 Harcourt Rd Ste 420
Indianapolis, IN 46260
Phone: (317) 415-6740
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 8301 Harcourt Rd, Indianapolis, IN 46260-2081 — (317) 415-6740

Specialties & licences

Gynecologic Oncology Physician (primary) Taxonomy 207VX0201X · Licence 01053762A (IN)

Record details

NPI number1548396492
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 26, 2007
Last updated in NPPESJune 6, 2022
Certification dateJune 6, 2022
Mailing address8402 Harcourt Rd Ste 420, Indianapolis, IN 46260-2053

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGYNECOLOGICAL ONCOLOGY
Also practisesOBSTETRICS/GYNECOLOGY
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice St Vincent Physician Services Hospital And Health Care Center — 282 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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