Dr. Demaerschalk received his M.D. degree from the University of British Columbia in Vancouver, Canada. He completed his neurology residency and vascular neurology fellowship training at the University of Western Ontario in London, Canada and postgraduate training in clinical epidemiology, biostatistics, health research methodology, and health professional education at McMaster University in Hamilton, Canada and University of Toronto, in Toronto, Canada.
Dr. Demaerschalk joined the staff at Mayo Clinic in Arizona in 2001, and is currently a professor in the Department of Neurology, director of Vascular Neurology, Hospital Neurology, Tele Stroke, and Tele Neurology.
Dr. Demaerschalk has specialized in stroke, emergency neurology, and telemedicine for over a decade. His research focuses on thrombolysis, regional stroke systems of care, health economics, meta-analysis, evidence based medicine, and telemedicine. He has co-authored American Heart Association and American Stroke Association guidelines for the management of acute ischemic stroke and American Academy of Neurology guidelines for telemedicine in neurology. He has designed and conducted pivotal clinical trials demonstrating reliability, validity, safety, and efficacy of telemedicine for stroke and the first US cost effectiveness analysis of telestroke.
He is the author of more than 150 research manuscripts, chapters and editorials, and is the co-editor of several books including the textbooks Neurology - an Evidence Based Approach and Evidence Based Neurology.
He was the recipient of the Distinguished Mayo Clinic Educator award in 2011, the Distinguished Mayo Clinic Clinician award in 2013, and the Arizona Medical Association and Arizona Department of Health Services Public Service Awards in 2013.