Darshak Sanghavi graduated from Harvard and Johns Hopkins University. He has done medical research in Japan, India, Kenya, and Peru, and until recently was a pediatrician for the U.S. Indian Health Service, during which time he lived on a Navajo reservation in New Mexico. Sanghavi is currently practicing pediatric cardiology at Boston's Children's Hospital and lives in Boston with his wife and son. He writes regualary for The Boston Globe and is a frequent guest on NPR.