Please call 978-878-8100 to schedule an appointment. Leominster Dental is open: Monday, Wednesday, Thursday, Friday. 8 am to 5 pm. Tuesday. 8 am to 8 pm. Please call 978-878-8100 to get more information and schedule appointments. Medication assisted treatment is provided through medical care. AFTER HOURS: Call 978 878-8100 if you need clinical ....