Stuart got his undergraduate degree from Cornell University (1968) and his D.D.S. from The Columbia School of Dental and Oral Surgery (1972). He spent 8 years in the Army that included time as one of only four dentists in the 82nd Airborne. After he left the Army (1980), he joined a group dental practice in upstate NY and retired in 2012. He has won four World Fantasy Awards, the British Fantasy Award and had two Hugo nominations. In 2014 he was a Guest of honor at the World Fantasy Convention.