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

John Zachary Gallien, MD

Individual provider Emergency Medicine Physician · NPI 1235367731

John Zachary Gallien, MD is an Emergency Medicine in Indianapolis, Indiana. Graduated from Indiana University School of Medicine in 2009, 17 years ago. Practices with Iu Health Medical Group, LLC, a 4,351-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Indiana and Michigan.

Years since qualifying
17
Trained at
Indiana University School of Medicine
Licensed in
IN, MI
In the registry since
2009
Specialties on file
2
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

720 Eskenazi Ave
Indianapolis, IN 46202-5187
Phone: (317) 639-6671
Fax: (317) 963-5492
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 2651 E Discovery Pkwy, Bloomington, IN 47408-9059 — (812) 353-9515
  • 1701 N Senate Blvd, Indianapolis, IN 46202-1239 — (317) 962-8880
  • 2799 W Grand Blvd, Detroit, MI 48202-2608 — (317) 504-5665

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 01087817A (IN)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 4301094548 (MI)

Record details

NPI number1235367731
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2009
Last updated in NPPESMarch 8, 2025
Certification dateMarch 8, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Iu Health Medical Group, Llc — 4351 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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