Gregory S. Day, M.D. is a neurologist with special interest in the diagnosis and management of NMDAR encephalitis. He completed his Neurology Residency at the University of Toronto (Canada) in 2014 and his fellowship in memory and aging at Washington University in St. Louis in 2015. He joined the Mayo Clinic in Florida in 2020 and is currently an Assistant Professor of Neurology, Vice Chair of Research for the Department of Neurology, and Director of the Division of Behavioral Neurology. He continues his clinical research efforts with a focus on rapidly progressive dementia, including autoimmune-causes of dementia. His work is supported by a career development grant from the National Institutes of Health, the Chan-Zuckerberg Initiative, the Alzheimer’s Association and other funding partners. He is a co-Project PI on the ExTINGUISH Trial and site co-lead at Mayo Clinic in Florida.