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.
Education
- 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
- Boston Magazine, Top Dentist 2022
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
Periodontist
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.
Education
- 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
Orthodontist
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.
Education
- 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.

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.

Robert Miskimen, DMD
Oral Surgeon
Dr. Robert Miskimen is a graduate of Indiana University School of Dentistry. After earning his dental degree, Dr. Miskimen attended The State University of New York at Buffalo Jacobs School of Medicine and Biomedical Sciences, where he earned his Doctor of Medicine.
Dr. Miskimen is a member of the American Dental Association and the American Association of Oral & Maxillofacial Surgeons.

William Snell, DDS
Pedodontist
After completing his dental degree at New York University, Dr. Snell completed a two year residency in Pediatric Dentistry at Tufts-New England Medical Center. He then pursued advanced training in Orthodontics at Boston University’s Goldman School of Graduate Dentistry. He is board certified in both specialties. Dr. Snell focuses on prevention, and how the health of the mouth impacts overall health. Dr. Snell provides a welcoming environment for children, and encourages parents to observe from the treatment operatory. Dr. Snell enjoys music of all kinds, jigsaw and crossword puzzles, and vegetable gardening.
Education
- New York University College of Dentistry, DDS
- Pediatric Dentistry at Tufts-New England Medical Center
- Boston University, Henry M. Goldman School of Dental Medicine, Advanced Training in Orthodontics
Professional Associations
- American Dental Association
- Merrimack Valley Dental Society
Awards and Honors
- Boston Magazine, Top Dentist 2020

Mahdieh Beheshti, DMD
Pediatric Dentist
Dr. Mahdieh Beheshti is a board-certified pediatric dentist and a Diplomat of the American Board of Pediatric Dentistry. She completed her dental school and graduated from a pediatric dentistry residency in Iran. After relocating to the United States, she continued her education at the Advanced Standing Program at Boston University, Henry M. Goldman School of Dental Medicine, where upon graduation was inducted into the Omicron Kappa Upsilon (OKU) National Dental Honor Society for her outstanding and exemplary academic standing. She repeated her training in pediatric dentistry at NYC Health + Hospitals / Jacobi Medical Center, a level I trauma center and the only pediatric trauma center in the Bronx and southern Westchester, New York, and in affiliation with the Albert Einstein College of Medicine.
She is a member of the American Academy of Pediatric Dentistry, the American Board of Pediatric Dentistry, and the College of Diplomates. She strives to provide optimal care for her patients and has a profound passion for helping children enjoy a positive, successful experience within the dental environment. She loves the art of dentistry with professional interests in esthetic dentistry and creating a beautiful smile, as well as constantly striving to provide the best treatment for her patients.
During her free time, Dr. Beheshti loves baking and professional cake decorating, reading, yoga, and spending time with her family.
Education
- Boston University Henry M. Goldman School of Dental Medicine
- Islamic Azad University School of Dentistry
*If your request is a dental emergency, please call the office. New patient offer not valid for emergency appointments.