A national leader in personalized medicine and in pulmonary and critical care medicine, Marsh has concentrated his efforts in determining how to help individuals stay healthy and how to create ecosystems to make this easy.
Marsh is a two-time graduate of West Virginia University, earning an undergraduate degree in biology in 1981 and a medical degree in 1985.
From 1985 to 2015 he was at The Ohio State University. He served a residency in internal medicine; a research fellowship in pulmonary and critical care, a chief residency in internal medicine; a fellowship in pulmonary and critical care medicine; and an extension research fellowship in pulmonary and critical care. As a faculty member, he held a wide range of teaching, clinical, research, and administrative roles at Ohio State’s Wexner Medical Center, including as vice dean for research and, most recently, vice dean for innovation in the College of Medicine. In this position, he established OSU’s IDEA Studio in Healthcare and Design.
Marsh’s research has focused on defining the underlying mechanisms that determine health and disease. His research interests include the molecular regulation of longevity and epigenetic controls of aging. He holds more than 20 patents or patent disclosures. He has mentored more than 50 MD, MD/PhD and PhD doctoral students, post-doctoral researchers and junior faculty, and won a number of Ohio State teaching awards. He has been responsible for more than $20 million in National Institutes of Health funding as principal investigator, co-PI, co-investigator, and mentor, and has published more than 140 papers in peer-reviewed journals.
He serves on national scientific advisory committees for organizations such as the National Institutes of Health, the American Thoracic Society, the Sarnoff Cardiovascular Research Foundation, GlaxoSmithKline and Caris Life Sciences. He is a Fellow in the American College of Physicians and an elected member of the American Society for Clinical Investigation.
In response to the challenges of the new coronavirus COVID-19, Marsh was appointed as “COVID-19 czar” by Gov. Jim Justice. In his role, Marsh coordinates the state’s response to the challenges of the new coronavirus, collaborating with federal, state and local agencies, health officials, researchers and other agencies helping with the effort. In addition, Marsh also advocates for the personal responsibilities of West Virginia’s citizens to help lower the spread of infection of COVID-19 across the state.