HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / IN

GREGORY S ZAHN, MD

EMERGENCY MEDICINE

Medical school: INDIANA UNIVERSITY SCHOOL OF MEDICINE

Graduated: 2011

NPI: 1710278635

Practice Locations (3)

IU HEALTH MEDICAL GROUP, LLC

1701 N SENATE BLVD

INDIANAPOLIS, IN 462021239

8884843258

EMERGENCY PROFESSIONALS OF INDIANA PC

1101 MICHIGAN AVE

LOGANPORT, IN 469471528

5747537541

RIVERVIEW HOSPITAL

395 WESTERFIELD RD

NOBLESVILLE, IN 460601425

3177730760

Source: CMS National Downloadable File, September 2026.

GREGORY ZAHN, MD | HealthCareAtlasUSA