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

Ellen S Horstmann, MD

Individual provider Pediatrics Physician · NPI 1265093215

Ellen S Horstmann, MD is an Emergency Medicine in Indianapolis, Indiana. Qualified in 2017, 9 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 Nebraska.

Years since qualifying
9
Licensed in
IN, NE
In the registry since
2019
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)

  • 1701 N Senate Blvd, Indianapolis, IN 46202-1239 — (888) 484-3258
  • 2401 W University Ave, Muncie, IN 47303-3428 — (765) 747-3111
  • 982185 Nebraska Medical Center Omaha, Omaha, NE 68198-2185 — (402) 559-5380

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 01093892A (IN)
Pediatrics Physician Taxonomy 208000000X · Licence 8597 (NE)

Record details

NPI number1265093215
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 20, 2019
Last updated in NPPESMarch 16, 2025
Certification dateMarch 16, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Iu Health Medical Group, Llc — 4351 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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