An area native and graduate of Hamilton College in Clinton, New York, Dr. Dennison received his medical degree from SUNY Health Science Center in Syracuse, New York. He remained at SUNY for a surgical internship and a residency in orthopedic surgery. He then completed a fellowship in sports medicine at the American Sports Medicine Institute in Birmingham, Alabama. Dr. Dennison is a fellow of the American Academy of Orthopedic Surgeons.