Dr. Grabenstein attended Northwestern University Feinberg Medical School and graduated in 1980 (42 years ago). Northwestern University Feinberg Medical School is a top-ranked medical school, and is ranked #17 in Best Medical Schools by U.S. News.
Dr. Grabenstein works at Family Doctors of Oak Ridge, PC, which has 1 other health providers.
Dr. Grabenstein is affiliated with the following hospitals.
As a family medicine, Dr. Grabenstein may see patients with the following conditions. Please check with Dr. Grabenstein what conditions he treats. Dr. Grabenstein may treat additional conditions not listed.
Dr. Grabenstein is a family doctor.
Providers chosen based on Dr. Grabenstein's location and specialties.