Sullivan County DMV Office 100 North StreetMonticello New York 12701 NY Sullivan 100 North StreetDirections (845) 794-3872 Monday 08:00 am - 04:30 pm Tuesday 08:00 am - 04:30 pm Wednesday 08:00 am - 04:30 pm Thursday 08:00 am - 04:30 pm Friday 08:00 am - 04:30 pm Saturday Closed Sunday Closed