Clay Johnston, MD, PhD
Director, Clinical and Translational Science Institute (CTSI)
UCSF Associate Vice Chancellor of Research

After receving his undergraduate education at Amherst College, he completed medical school at Harvard University. He later received a PhD in epidemiology from the University of California, Berkeley, and was a resident in Neurology at UCSF, where he later trained in Vascular Neurology. He is currently Professor of Neurology and Epidemiology, as well as Director of the Stroke Service at UCSF.
Clay has authored more than 200 publications in scientific journals and has won several national awards for his research and teaching. In particular, he 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.
He is currently the Executive Vice Editor of the Annals of Neurology, and has previously served on the editorial boards of several other journals. He has been recognized 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.
Experience
- Associate Vice Chancellor of Research, University of California, San Francisco (February 2009-Present)
- Director, Clinical and Translational Science Institute at UCSF (December 2008-Present)
- Vice Editor, Annals of Neurology (October 2005-Present)
- Director, UCSF Stroke Service (January 2002-Present)
- Professor of Neurology and Epidemiology; University of California, San Francisco (2007-Present)
- Resident, Neurology; University of California, San Francisco (June 1993-June 1996)
- Intern, Medicine; Massachusetts General Hospital (June 1992-June 1993)
More Information
UCSF Profiles (including publications)
UCSF School of Medicine
LinkedIn