Dr. Duncan earned her B.S. at Vanderbilt University and her M.D. at University of Chicago. She remained at The University of Chicago for pediatric residency and a year as Chief Resident before going to Johns Hopkins for fellowship training in Pediatric Critical Care. At Hopkins she developed her interest in basic science research. She came to Washington University in 2004 and developed a research program focused in cardiac mitochondrial metabolism in obesity and diabetes. In 2011 she became the Program Director for Pediatric Critical Care Medicine. She is now primarily focused on educational scholarship projects related to career development and mentorship.