379 Centerline Rd., Presque Isle, ME 04769(207) 762-7881


At Blackstone Orthodontics, we pride ourselves in delivering comfortable, quality and personalized orthodontic care. Please view the information on this page to learn more about our Presque Isle and Madawaska offices and procedures, including hours, insurance, billing, payment options and financing. Contact our office during regular business hours, and our friendly staff can answer any of your questions.

Gregory M Blackstone DDS
379 Centerline Rd
Presque Isle, ME 04769
(207) 762-7881

Click here for door-to-door directions.

Office Hours
Monday: 7:30 AM - 4:30 PM
Tuesday: 7:30 AM - 4:30 PM
Wednesday: 7:30 AM - 4:30 PM
Thursday: 7:30 AM - 4:30 PM
Friday: 7:30 AM- 3:00 PM
Saturday: Closed
Sunday: Closed

Satelite Office Location: Madawaska, Maine
Every 3rd Tuesday 8:10 AM - 4:00 PM

We understand the importance of keeping your child in school and will try to see as many children outside of school hours as possible. For this reason, only short appointments are booked before and after school hours. Longer appointments will be scheduled during the day.

Insurance and Billing
We accept most traditional insurance plans including but not limited to, Delta Dental, Anthem Blue Cross Blue Shield, United Concordia, Met Life Dental, Aetna, Cigna Dental, Maine Care and more, contact our office to verify acceptance of your plan. Gregory M Blackstone DDS does not participate in Health Management Organizations; however, we will be happy to file your insurance claims for you.

***Ask us about our convenient monthly payment plan and auto payment plan.

Payment Options
We accept personal checks, cash, Master Card, Visa and Discover. We also offer a flexible payment plan. Please see our Financial Coordinator for details.

Facilities and Equiptment

  • Digital x-rays
  • Digital Models
  • Intraoral Photography
  • Paperless Office