Our Caring, Professional Chelmsford Team

Our office uses advanced technology and modern techniques to ensure the highest quality dental care with minimal discomfort.

Clifford G. Walters, DMD

Dental Director

The past 25 years I have been practicing dentistry have truly been a pleasure. I find great personal satisfaction from knowing that I have made a positive difference in the lives and health of those around me.

  • Undergraduate degree – Brown University, 1978
  • Doctorate of Dental Medicine – Harvard University School of Dental Medicine, 1984
  • Masters of Public Health – Harvard University School of Public Health, 1984
  • Residency in General Dentistry – Montefiore Medical Center, Bronx, NY, 1984-1985
  • Residency in Dental Public Health – New York City Department of Public Health, 1985-1987

Professional Affiliations

  • American Dental Association

John Hagigeorges, DMD

General Dentistry

Dr. John Hagigeorges is a native Bostonian who brings 35-plus years of clinical experience to Great Hill Dental Partners – Chelmsford. He earned his Bachelor’s Degree in Chemistry, his Doctorate in Dental Medicine & a Fellowship in Oral & Maxillofacial Implant Prosthetics from Tufts University in Boston. Since 1985, he has grown his own private General Practice in the Merrimack Valley while pioneering the applications of digital scanners in Cosmetic Dentistry for the Patterson Dental Corporation.  In 2013, he was recruited by a large group practice in North Carolina to become the Director of CAD-CAM Dentistry where he practiced Family Dentistry and trained a staff of 55 doctors. His passion is delivering a superlative experience to every single one of your visits that is centered on personal & professional service. Let him beautify your smile and improve your comfort & self-image.

Dr. John Walsh, DMD


Dr. Walsh is an active member of the American Dental Association, the American Association of Orthodontists and the Northeastern Society of Orthodontists. He has extensive training in treating multi-disciplinary and surgical cases, and has a strong background in orthodontic treatment with clear aligners. He stays up to date with the latest orthodontic innovations and techniques by regularly attending seminars and courses. Dr. Walsh is passionate about creating healthy, beautiful smiles that last a lifetime. He always welcomes questions and takes the time to answer and discuss them thoroughly.

Dr. John Walsh grew up in Connecticut and completed his undergraduate degree in Molecular and Cell Biology at the University of Connecticut, where he graduated Magna Cum Laude. He stayed a UConn Husky for another 4 years, attending the University of Connecticut School of Dental Medicine where he received his D.M.D. Immediately after dental school, he completed an additional three years of specialty training in orthodontics at Montefiore Medical Center in New York City.

Outside of the office, Dr. Walsh enjoys spending time in the outdoors with his wife, Sarah, and his dog, Stella. In his off time, he enjoys skiing, hiking, surfing, mountain biking and photography. Even though he went to residency in New York City, Dr. Walsh is a passionate New England sports fan, especially the Patriots and Celtics.

Ilya Garibyan, DMD

General Dentistry

New Patients are Always Welcome at our Practice!

Please feel free to call us or email us if you have any questions or wish to book an appointment.

Great Hill Dental Chelmsford

(978) 244-0629


Great Hill Dental Chelmsford
Address : 122 Chelmsford St.
Chelmsford, MA 01824-3604


Monday: 8:00am – 5:00pm
Tuesday: 8:00am – 5:00pm
Wednesday: 8:00am – 6:00pm
Thursday: 8:00am – 5:00pm
Friday: 8:00am – 4:00pm
Saturday: CLOSED