Mary Ellen Lyon, MD, MSc, DTM&H
Residency Class of 2018
Dr. Mary Ellen Lyon (pictured far right) is a board-certified emergency medicine physician with advanced training in global health and international emergency care systems. She earned her bachelor’s degree from Occidental College and her medical degree from Case Western Reserve University School of Medicine, followed by emergency medicine residency at the University of Wisconsin Hospitals and Clinics.
Dr. Lyon completed a global health and international emergency medicine fellowship through Yale University in partnership with the London School of Hygiene & Tropical Medicine, where she also earned an MSc and Diploma in Tropical Medicine and Hygiene. Her work focuses on emergency care development, EMS training, and epidemic preparedness in low-resource settings.
She has served as a physician educator with Seed Global Health at Makerere University and contributed to Uganda’s Ebola response. Dr. Lyon is currently an adjunct assistant professor at Yale and remains active in clinical care, education, and consulting on emergency systems, outbreak response, and health workforce development.