Dr. Alexandrov specializes in the development of novel reperfusion therapies for stroke. Prior to joining the college, he served as chair of the Department of Neurology and Semmes-Murphey Professor at the University of Tennessee Health Science Center. In his role as medical director of the University of Tennessee Mobile Stroke Unit, he led the organization to become the first in the world with a state-of-the-art computed tomography CT) scanner performing head and neck computed tomography angiography. In his time in Tennessee, he directed the Memphis city-wide Stroke Program, which achieved and sustained the highest treatment rates with alteplase tPA) from 2015 to 2021.