Dr. Heilman, better known as "Dr. John", has been practicing in Douglasville, Georgia since 1975. Upon graduating from Temple University School of Dentistry and completing a two-year residency in Pediatric Dentistry at St. Christopher's Hospital in Philadelphia in 1969, he then served as a Captain in the U.S. Army. He was stationed in Germany as a Pediatric dentist and consultant to the Surgeon General.

Upon moving to Atlanta in 1973, Dr. Heilman was an Assistant Professor of Pediatric Dentistry at Emory University School of Dentistry and a consultant to the Georgia Retardation Center Dental Department and since has lectured to various dental organizations, hospitals and schools. He attends numerous continuing education seminars each year and is a member of the American Academy of Pediatric Dentistry, the Georgia Academy of Pediatric Dentistry, the Southeast Society of Pediatric Dentists, the Georgia Dental Association, The American Dental Association and the West Georgia Dental Study Club. He and his wife enjoy fishing, boating, auto racing, cooking and music.