Baltimore Sinus Specialists is a unique pairing of ear nose and throat physicians that have specialized training in diseases of the nose and sinuses working hand in hand with a fellowship trained allergist/immunologist. Marc G. Dubin, MD, FACS and Douglas Reh, MD, FACS are board certified Otolaryngologists-Head and Neck Surgeons (Ear Nose and Throat Doctors/Surgeons) who specialize in disease of the nose and sinuses (sinusitis).