Dr. Johnson grew up in northern Virginia and attended college and medical school at the University of Virginia. She completed her postgraduate training in pediatrics at the Medical College of Virginia. Dr. Johnson spent two years serving as a pediatrician for the U.S. Public Health Service in Kentucky. She also practiced in Bloomington, IN for two years prior to moving to Orlando in 1990. Dr. Johnson has three children, Rachel, Daniel, and Adam. Her husband, Michael, is an associate professor of physics at the University of Central Florida.