He completed medical school at the University of Minnesota and Neurology residency at the University of Michigan. He trained as a fellow in movement disorders and neurodegenerative diseases at the University of Michigan. Dr. Kotagal is a board certified neurologist who cares for patients with Parkinson disease, atypical parkinsonian disorders, dementias, tremor, gait and balance conditions. He directs a specialized clinic for the evaluation and treatment of normal pressure hydrocephalus. His primary research interests include understanding the role of cardiovascular risk factors and microvascular changes in Parkinson disease, aging, and other neurodegenerative diseases, which he investigates in human subjects using of a variety of state-of-the-art neuroimaging methods.