Government Offices in Mastic Beach 1 Government Offices in Mastic Beach Mastic Beach SearchAll (140)Restaurants (30)Bars & nightlife (2)Parks & nature (3)Gas stations (4)Home improvement (1)Government Offices (1)Fire Stations (2)Urgent Care & Emergency Centers (1)Medical Clinics & Doctor Offices (1)Dental Clinics (1)Mental Health & Counseling Centers (1)Specialist Medical Clinics (2)Schools (K-12) (1)Churches & Places of Worship (10)Civic & Community Organizations (5)Barber Shops (3)Beauty Salons (1)Nail Salons (1)Real Estate Offices (4)Sports Teams & Clubs (1)Performing Arts & Event Venues (1)Historical Sites (1)Beaches & piers (2)Marinas (2)Convenience Stores (1)Grocery & food markets (8)Warehouse Clubs & Supercenters (1)Clothing & Apparel Stores (1)Sporting Goods Stores (1)Office Supply Stores (1)Car & vehicle dealers (2)Auto Parts Stores (1)Auto repair & services (9)Electricians (1)Roofers (3)General Contractors (3)Retirement Homes & Senior Living (1)Preschools & Daycare Centers (1)US Department of The Interior National Park Service Government Offices20 Washington Ave