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

Gregory S Zahn, MD

Individual provider Emergency Medicine Physician · NPI 1710278635

Gregory S Zahn, MD is an Emergency Medicine in Indianapolis, Indiana. Graduated from Indiana University School of Medicine in 2011, 15 years ago. Practices with Emergency Professionals of Indiana PC, a 120-clinician group and accepts Medicare assignment. Licensed in Indiana and North Carolina.

Years since qualifying
15
Trained at
Indiana University School of Medicine
Licensed in
IN, NC
In the registry since
2011
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

1701 N Senate Blvd Rm DG412
Indianapolis, IN 46202-1239
Phone: (317) 962-3886
Fax: (317) 963-5492
Show map & directions

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 01074017A (IN)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 173804 (NC)

Record details

NPI number1710278635
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 26, 2011
Last updated in NPPESMarch 10, 2021
Certification dateMarch 10, 2021
Mailing address250 N Shadeland Ave, Indianapolis, IN 46219-4959

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice Emergency Professionals Of Indiana Pc — 120 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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