In 1975, Dr. Timothy Johnson M.D. joined ABC News as the medical reporter and later became the “Medical Editor” of Good Morning America when the program premiered. In over three decades at ABC News, he has reported for World News Tonight, Nightline, and 20/20. He is now the ABC News Senior Medical Contributor. Dr. Johnson is the founding editor of the Harvard Medical School Health Letter and co-editor of the Harvard Medical School Health Letter Book. He is also co-editor of the book Your Good Health, co-author of Let’s Talk and author of Dr. Timothy Johnson’s On-Call Guide to Men’s Heath and Finding God in the Questions: A Personal Journey. Dr. Johnson is married with two children and three grandchildren.