After completing medical school at the University of California, San Francisco (UCSF), School of Medicine, he performed his residency at a hospital affiliated with the University of California, San Francisco (UCSF) and a hospital affiliated with the University of California, Irvine. His clinical interests include ablation, gamma knife radiosurgery, and laser treatment. The average patient rating for Dr. Smyth is 4.0 stars out of 5. Dr. Smyth honors several insurance carriers, including Anthem, Blue Cross/Blue Shield, and Coventry. His hospital/clinic affiliations include Barnes-Jewish West County Hospital, Shriners Hospital for Children - St. Louis, and Washington University Physicians.