McGuire's All Brands Hearing Aid Service has five locations (Patchogue, Riverhead, Southampton, Greenport and Montefiore Medical Center in the Bronx). McGuire's has been servicing hearing impaired patients for more than 40 years. The hearing instruments that they carry are Behind-the-Ear, Open fit, In-the-Ear, In-the-Canal, and CIC. Dr. Mary K. Bohr, M.S, CCC-A is the Audiologist on staff at the Riverhead location.