OFFICE LOCATION, PHONE/EMAIL, & HOURS OFFICE LOCATION & MAILING ADDRESS2 Greens Pond Road Merrimack, NH 03054 PHONE603-424-9241 EMAILcustomerservice@mvdwaternh.gov OFFICE HOURSMonday - Friday 8:00 AM - 4:30 PM (Click HERE to view the MVD Calendar for holiday/closure info.)