Areas Served by N-DUB-G Sound ENT. Long Island, Ny-nj Metropolitan Suffolk County New York-northern New Jersey-long Island, Ny-nj-pa Metropolitan Suffolk County New York-northern New Jersey-long Island, Ny-nj-pa Metropolitan Pike County New York-northern New Jersey-long Island, Ny-nj-pa Metropolitan Westchester County New York-northern New Jersey-long Island, Ny-nj-pa Metropolitan Nassau County New York-northern New Jersey-long Island, Ny-nj-pa Metropolitan Queens County New York-northern New Jersey-long Island, Ny-nj-pa Metropolitan Putnam County New York-northern New Jersey-long Island, Ny-nj-pa Metropolitan Bronx County Bridgeport-stamford-norwalk, Ct Metropolitan New Haven-milford, Ct Metropolitan Hartford-west Hartford-east Hartford, Ct Metropolitan Norwich-new London, Ct Metropolitan