Wisniewski is an Associate Professor of Neurology, Pathology, and Psychiatry at the New York University School of Medicine and an Attending Neurologist at the Tisch Hospital New York University Medical Center. Dr. Wisniewski graduated from King's College Medical School, University of London, England in 1983. He received training as a neurologist at New York University Medical Center from 1984 to 1988 and as a neuropathologist at Columbia-Presbyterian Medical Center, NY from 1988 to 1990.