Our Caring, Professional Chelmsford Team

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

Our Caring, Professional Chelmsford Team

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

John A. Brangan, DMD

Dental Director

I am most passionate about restoring patients’ oral health in a low-stress environment. Treating anxious people who may have stayed away from the dentist for years, and helping them become great dental patients, is my goal. I love the practice of dentistry and enjoy giving exceptional care to all my patients in a calm and caring environment. Dentistry has provided me and my family with a great life and gives me opportunities to meet new people every day.


  • Bachelor of Science in Biology – State University of New York at Stony Brook
  • Doctorate of Dental Medicine – Boston University School of Dentistry

Awards and Honors

  • Boston Magazine, Top Dentist 2020

Professional / Faculty Affiliations

  • American Dental Association
  • Massachusetts Dental Association

Originally from Medford, Long Island, I now live in Dracut with my wife Alecia, our son Jack, our daughter Emma, and our cat named Louise. I run daily and am a huge sports fan, especially of the New York Yankees and New York Giants. Being active in the community is important because it gives me a chance to give back. I volunteer at my son and daughter’s school and actively give to charity organizations in my area.

Matthew Hickin, DDS MS


Dentistry is an exciting yet challenging field, but I truly enjoy every day of practice. Periodontics in particular is a fascinating field that is constantly changing and updating. New research and technology is changing the way periodontists treat patients, with increasing comfort and efficacy. And while I am passionate about saving teeth, dental implants have allowed for treatment not possible in the past and is an integral part of my practice.


  • Bachelors of Science in Chemical and Biomolecular Engineering-Johns Hopkins University
  • Doctor of Dental Surgery-Columbia University, College of Dental Medicine
  • Masters of Science in Periodontics-Columbia University, College of Dental Medicine

Professional Affiliations

  • American Academy of Periodontology
  • Northeastern Society of Periodontists
  • American Dental Association

Awards and Honors

  • Boston Magazine, Top Dentist 2018
  • Boston Magazine, Top Dentist 2020

I am originally from Queensbury, NY and now live in the Back Bay neighborhood of Boston. I’m a newcomer to the city, but am excited to make this my new home. I spend most summer weekends in Lake George-boating, swimming, and spending time with family. I also enjoy running, skiing, cooking, and reading.

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.

Clark Smith, DMD


Dr. Clark Smith graduated Magna Cum Laude from Brigham Young University, where he earned his Bachelor of Science in Sociology and was the Valedictorian for the Department of Sociology. Dr. Smith then went on to continue his education at Harvard School of Dental Medicine and received his Doctor of Medicine in Dentistry Cum Laude. In his free time, Dr. Smith dedicates his time to volunteering and giving back to his community. Dr. Smith is a member of various Orthodontic associations, including the American Association of Orthodontics.


  • Harvard University School of Dental Medicine, DMD
  • Brigham Young University, BS

Professional Associations

  • American Association of Orthodontics

Awards and Honors

  • Boston Magazine, Top Dentist 2018
  • Boston Magazine, Top Dentist 2020

Bahar Houshmand, DDS

Pediatric Dentist

Dr. Bahar Houshmand received her DDS degree from Shahid Beheshti University. She continued her education at Stony Brook University and University of Washington where she obtained her Master’s degree and second dental degree respectively. Dr. Houshmand completed her pediatric residency training at University of Connecticut Health Center and Connecticut Children`s Medical Center.

After completing her residency program, Dr. Houshmand was honored to join University of Connecticut Pediatric Dentistry department as full-time faculty. She was privileged to teach clinical and didactic courses to dental students and pediatric dentistry residents for the past few years.
Dr. Houshmand strongly believes in education and creating a positive relationship with parents and their children. She enjoys interacting with kids and listening to their priceless stories. She treat her patients with respect and patience, as if they are my family members.

In her spare time, Dr. Houshmand likes to spend time with family and friends. She enjoys painting, reading and all outdoor activities.Dr. Houshmand is a member of the American Association of Pediatric Dentistry and is a diplomate of American board of pediatric dentistry.

Dr. Niusha Nikkholgh

Niusha Nikkholgh, DMD


Dr. Niusha Nikkholgh is a graduate of Boston University, Henry M. Goldman School of Dental Medicine.

Dr. Nikkholgh works closely with her patients in order to tailor make a treatment plan that will fit their daily needs. Dr. Nikkholgh believes in educating her patients so they fully understand how each step of the treatment plan will improve their oral health.

Dr. Nikkholgh is a member of the American Dental Association.

Dr. Anthony Sciuto

Anthony Sciuto, DMD

General Dentist

Dr. Anthony Sciuto is a graduate of Boston University, Henry M. Goldman School of Dental Medicine.

He served in the United States Navy Dental Corp for three years active duty and for seven years in the Naval Reserve. Dr. Sciuto owned and operated his dental office for more than 35 years.

Dr. Sciuto is a member of the American Dental Association, the Massachusetts Dental Society, and the Merrimack Valley Dental Association.

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: 8am-5pm
Tuesday: 8am-5pm
Wednesday: 8am-7pm
Thursday: 8am-7pm
Friday: 8am-3pm
Saturday: 8am-3pm