Dr. Halstead received his medical degree from the University of Wisconsin Medical School in 1998. After completing a residency and chief residency in pediatrics at the University of Wisconsin, he completed a fellowship in nonoperative pediatric and adult sports medicine at Vanderbilt University. Dr. Halstead is a team physician for the St. Louis Blues, Washington University athletes, and Lafayette High School, and is the Medical Director for the Washington University and St. Louis Children's Young Athlete Center. He also serves as an assistant medical director to the Go! St. Louis Marathon. Dr. Halstead is currently an elected member to the executive committee of the American Academy of Pediatrics' Council on Sports Medicine and Fitness. He was the lead author on their clinical report on "Sport-Related Concussions in Children and Adolescents" published in 2010.