Passport Application Services - Hempstead 200 Fulton Ave Hempstead, NY 11550 Phone : (516) 560-1120 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Fax           (516) 564-5341 Post Office - Hempstead 200 Fulton Ave Hempstead, NY 11550 Phone : (516) 560-1120 Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (516) 564-5341