Janet Horn, MD, is board-certified in internal medicine and infectious diseases, with training in obstetrics and gynecology. Much of her career was spent in solo private medical practice. For many years, she was a full-time faculty member at the Johns Hopkins University School of Medicine. Dr. Horn has authored many medical journal articles and several medical textbook chapters. Currently, she divides her time between medical writing and practicing medicine at the Shepherd's Clinic, which serves the uninsured.
Dr. Horn has been recognized by Baltimore Magazine and The Consumer's Guide to Top Doctors as one of the top doctors in Baltimore and in the United States. The Maryland Daily Record named her one of the top 100 women in Maryland in 1999.