Donald H Hazelton Pc Google Map 245 Hillside Avenue, Williston Park, NY 11596 Donald H Hazelton Pc info Address: 245 Hillside Avenue, Williston Park, NY 11596 Website: Telephone: (516) 742-7200 Zipcode: 11596 City: Williston Park State: New York Work Time: Wednesday 9AM–6PM,Thursday 9AM–6PM,Friday 9AM–6PM,Saturday Closed,Sunday Closed,Monday 9AM–6PM,Tuesday 9AM–6PM