List of National Bank Stores in Port Jefferson, NY Outlet Note Regular Brands National Bank New York Port Jefferson Rating 4.7 based on 80 votes Official Website nbbank.com Products Banking Savings Saving Bank Saving Plans NameAddressPhone Name/Address/Phone National Bank outlet - Port Jefferson 228 E Main St (631) 473-7700 National Bank outlet - Port Jefferson 135 W Broadway (631) 642-1000 National Bank outlet - Port Jefferson 135 W Broadway People Also Viewed