About Us

About Haas Dental Associates

Top-Quality Dentistry in Derry & Dover

Haas Dental Associates was founded 40 years ago in Derry, NH by orthodontist Dr. Ron Hrinda and was originally named Hrinda Dental Health Associates. Our biggest move to date has been across the street, from our previous office on Crystal Ave. to our modern and spacious building which was custom built for our practice on Manchester Ave. in Derry, NH. Pediatric dentist Dr. Jim Haas joined the practice in 1996. Although the office has changed names, Dr. Jim Haas has never changed his focus… to provide the best pediatric, orthodontic, and general dental health care possible to children of the Greater Derry area (Londonderry, Windham, Hampstead, etc.) and throughout Southern NH.

Call the Dover location at (603) 635-4137, Derry location at (603) 434-1586, or contact us online to schedule an appointment with our team.

Haas Dental Associates

Phone Number


4 Manchester Avenue
Derry, NH 03038

Office Hours

Monday - 8:00am to 5:00pm
Tuesday - 8:00am to 5:00pm
Wednesday - 8:00am to 5:00pm
Thursday - 8:00am to 5:00pm
Friday - 8:00am to 4:00pm
Select Saturdays - Please Call to Confirm

SUMMER HOURS - July 1st to August 31st
Monday to Friday - 7:30am to 3:30pm

Haas Dental Associates

Why Choose Us?
  • Board Certified Pediatric Sedation Experts
  • Family-Like Environment Where All Ages Are Welcome
  • Highly Trained Team Working Together For Over 40 Years
  • Ability To Treat All Children Including Those With Disabilities & Special Needs
  • Available For Emergency Dental & Orthodontic Situations
  • Comfort Companion Dog On Site

Contact Us

We Look Forward to Welcoming Your Family Into Our Practice!

Call our Derry location at (603) 434-1586, or our Dover location at (603) 635-4137, or send us a message using the form below. 

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Patient Testimonials

Experiences To Make You Smile
  • “everyone is very sweet and makes my daughter feel as comfortable as possible!”

    - Brandi Pyles
  • “Always the best experience.”

    - Genevieve Lansil
  • “Wow! What an incredibly positive and professional dental practice!”

    - Ken A.
  • “They were very gentle, thorough, and positive. Never judging.”

    - Jane Mynhier
  • “This place and ALL of the staff here are so AMAZING”

    - Tiffany Weimer