Dr. Parker is interim associate director of the cardiovascular intensive care unit in the Johns Hopkins All Children's Heart Institute. He joined the hospital staff in 2016. Dr. Parker earned his medical degree at the University of Medicine and Dentistry of New Jersey School of Osteopathic Medicine. He completed an osteopathic pediatric-focused internship at Kennedy Health System in Stratford, New Jersey, and then a pediatric residency at Thomas Jefferson University/AI duPont Hospital for Children. He completed a fellowship in pediatric critical care at Cohen Children’s Medical Center of New York and a fellowship in pediatric cardiac intensive care at The Heart Institute at Children’s Hospital of Denver.