William H. Barth, Jr., MD, is vice chair for Obstetrics at Massachusetts General Hospital and associate professor of obstetrics, gynecology and reproductive biology at Harvard Medical School.
He is chair of the Committee on Obstetric Practice for the American College of Obstetricians and Gynecologists and is an oral examiner for the American Board of Obstetrics and Gynecology.
Before retiring as a colonel in the United States Air Force in 2005 he served as department chair at Wilford Hall Medical Center, as chief consultant to the Surgeon General for Maternal-Fetal Medicine and as commander of the 407th Expeditionary Medical Group in Iraq.
His primary research interests since 1996 have been in the design and conduct of a number of randomized trials in clinical obstetrics and perinatology. His clinical practice and interests are in the areas of preterm birth, cervical insufficiency, multiple gestations and intrapartum obstetrics.