Family Medicine
![](/sites/default/files/styles/portrait_classic_xsml/public/2024-04/Leonard%20Bertheau.jpg?h=25960eed&itok=MevhGCLT)
Leonard Bertheau, DO
Program Director, Primary Care Diabetology Fellowship, Assistant Professor of Family Medicine, Clinician Educator
Biography
Diabetes Care Fellowship: Ohio University College of Osteopathic Medicine
Family Medicine Residency: Firelands Regional Medical Center, Sandusky, OH
DO: Oklahoma State University; BS: Washington State University
Leonard R. Bertheau, DO is a board certified diabetologist. Originally from the Pacific Northwest, Dr. Bertheau attended Washington State University. After medical school at Oklahoma State University, Dr. Bertheau completed a residency in family practice at Firelands Regional Medical Center in Sandusky, Ohio and a fellowship in diabetes care at Ohio University College of Osteopathic Medicine.