Post Offices in Massapequa Park, New York, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Massapequa Park Post Office No Reviews Favorite Fax: (516) 798-5630Phone: (516) 798-1268Retail Hours Park Blvd Post Office No Reviews Favorite Fax: (516) 799-0931Phone: (516) 799-6802Retail Hours