Ear, Nose, and Throat Associates - David R. Rogerson, M.D. David C. Armstrong, M.D.; Kristin C. Brant, M.d.; Allison C Ford Harbart, M.D. - is a medical practice of four board-certified physicians specializing in Otolaryngology. We have been serving patients for over 30 years, with offices in Johnstown and Somerset, Pennsylvania. We offer comprehensive ear, nose, and throat care to children and...