Jonathan Q. Purnell, M.D.

Jonathan Q. Purnell, M.D., is a Professor of Medicine in the Division of Cardiovascular Medicine at Oregon Health & Science University. His research focuses on obesity pathophysiology, metabolic syndrome, and the relationships between regional and ectopic adiposity and insulin sensitivity, particularly during pregnancy. He investigates maternal health, diabetes, and the pharmacological management of obesity, emphasizing GLP-1 receptor agonist-based therapeutics. His recent work includes co-authoring joint TOS/OMA/OAC expert guidance statements on obesity pharmacotherapy using the GRADE approach and leading the POSIT study on preconception metabolic-bariatric surgery and child health outcomes. He also examines gaps in obesity medicine competencies across U.S. medical schools.