OSUMC Chiefs of Staff

 2017 - Jon Walker / Internal Medicine - Gastroenterology

Dr. Walker joined Ohio Gastroenterology Group, Inc in 2019. He earned his medical degree from the University of Cincinnati and subsequently completed his residency and fellowship at Ohio University. He completed an Advanced Endoscopy fellowship at the Medical College of South Carolina. 

2015 - Elmahdi Elkhammas - Surgery transplants

Dr. Elkhammas is a Professor Emeritus in the Department of Surgery at the Ohio State University, effective September 1, 2020.  Dr. Elkhammas completed his surgery residency at the OSUMC from 1987 to 1991.  He then joint the faculty and became a prominent transplant surgeon, and published research in the field. Upon his retirement he commutes to his home country Libya, and he is involved in quality, ethics, and medical education issues.

2013 - Douglas Sharre - Neurology

Dr. Sharre is a Clinical Professor of Neurology and the Medical Director of the Cognitive and Memory Disorders at the Ohio State University. He specializes in the diagnosis and treatment of neurodegenerative disorders including Alzheimer's disease, dementia with Lewy bodies and frontotemporal lobar degenerations.  Dr. Sharre is among the experts in his field.  His patients appreciate his concern and his quiet demeanor.

2011 - Patrick Vaccaro - Vascular Surgery

Dr. Vaccaro received his MD degree from the University of Cincinnati College of Medicine and has been in practice for more than 20 years.  Dr. Vaccaro is affiliated with several hospitals in Columbus, including James Cancer Hospital and Nationwide Children's.

     This post is dedicated to past and future OSUMC Chiefs of Staff