Xiao Tan studied Biology and Chemistry at Williams College. He subsequently obtained his Ph.D. studying Developmental Biology and Genetics at the University of Cambridge and his M.D. at Stanford University. He completed his training in Internal Medicine at Beth Israel Deaconess Medical Center with a concentration in Global Health. He joined Professor Jim Collins’ lab during his Gastroenterology fellowship at Massachusetts General Hospital, where he currently maintains his clinical practice. He joined the Wyss Institute as a Clinical Fellow in the Living Cellular Devices team in 2017. His research focuses on using synthetic biology and microbial engineering to develop new technologies to diagnose and treat GI illnesses.