Director

S. Claiborne Johnston, MD, PhD

Associate Vice Chancellor of Research & CTSI Director

S. Claiborne Johnston, MD, PhD is the Director of the Stroke Service at the University of California, San Francisco, where he is Professor of Neurology and Epidemiology. He received his undergraduate education at Amherst College and completed medical school at Harvard University. He received a PhD in epidemiology from the University of California, Berkeley. Dr. Johnston has published extensively in the prevention and treatment of stroke and transient ischemic attack. He is perhaps best known for his studies describing the short-term risk of stroke in patients with transient ischemic attack and identifying patients at greatest risk, and also for his work related to measuring the impact of research. He has led several large cohort studies of cerebrovascular disease and two multicenter randomized trials. Dr. Johnston is the Executive Vice Editor of the Annals of Neurology and has served on the editorial boards of several other journals. He has been honored previously with the American Academy of Neurology’s Pessin Prize for Stroke Leadership, the American Stroke Association’s Siekert New Investigator Award and the Feinberg Award for Clinical Stroke Excellence.