Nicholas T. Papapetros, DMD, FAGD

Dr. Papapetros has been delivering the highest quality dental care to his community since 1992. Originally from Quincy, Massachusetts, Dr. Papapetros earned his undergraduate degree in biology from Colby College in Waterville, Maine. He then went on to Tufts University School of Dental Medicine, where he earned his dental degree and student awards from both American College of Dentists and the American Association of Endodontists. After earning his dental degree Dr. Papapetros then completed a general practice residency at Lenox Hill Hospital in New York.

Dedicated to continuing education, Dr. Papapetros completed more than one thousand credit hours in continuing education courses and seminars since beginning his private practice. He has studied at such prestigious institutions as the L.D. Pankey Institute for Advanced Dental Education, the Las Vegas Institute for Advanced Dental Studies and Dawson Center for Advanced Dental Study. Dr. Papapetros is a Fellow in the International Congress of Oral Implantologists, International College of Dentists, American College of Dentists, and the Pierre Fauchard Academy. Dr. Papapetros is past President of the Tufts University School of Dental Medicine Alumni Association and the Merrimack Valley Dental Society.

Dr. Papapetros is an active member in many other leading dental and professional organizations, including: International Congress of Oral ImplantologistsAmerican Dental Society, Academy of General Dentistry, Massachusetts Dental Society, New Hampshire Dental Society, Merrimack Valley Dental Society, Greater Lawrence Dental Society, Tufts University School of Dental Medicine Alumni Association, and L.D. Pankey Foundation. In his spare time, Dr. Papapetros enjoys spending time with his wife, Andrea, and their four children: Theo, Isabella, Olivia, and Zachary.

Arietta Rigopoulos, DMD

Dr. Rigopoulos received her dental degree from Tufts University School of Dental Medicine in 2019. Prior to dental school, she received her B.A in Chemistry from McGill University in Montreal, QC.

Dr. Rigopoulos has been the recipient of several scholarships including the Tufts Merit Scholarship, NEHMDS Scholarship, and PYA Scholarship. She was on Dean’s List at Tufts and selected as both a tutor and teaching assistant to help dental students in both clinical and didactic courses. She was very involved in research during her dental school career receiving the Bates Student Research Fellowship all four years and was the recipient of the Research Committee Best Science Award twice, oral presentations at IADR, and a poster presentation at AADR. In addition to her research Dr. Rigopoulos has volunteered extensively throughout her community serving on the community service board for an outreach program at Cardinal Medeiros Homeless Shelter and has dedicated countless hours volunteering at Camp Sunshine in Casco, ME, Give Kids a Smile Day, Special Olympics, Smile, Share and Care and much more.

Dr. Rigopoulos is a member of the Massachusetts Dental Society and a regular attendee of Yankee Dental Congress in Boston allowing her to attend continuing education courses and stay up-to-date with the latest dental technology, materials, and methods.

In her free time, Dr. Rigopoulos enjoys spending time with her large Greek family and friends. She also enjoys traveling, reading, baking, and watching the New England sports teams.


Kelly – Office Manager

Kelly received her education in dental assisting from Quinsigamond Community College and joined our office in April of 2013. Since then, she has advanced her training becoming a certified dental assistant, a certified preventive functions dental assistant, and an AADOM Fellow. Kelly is also the vice president of the Boston Chapter of AADOM. As an office manager, she helps patients at the front desk, communicates with insurance companies, schedules appointments, handles billing procedures, and supports the front desk with additional duties. Kelly loves spending time with her family at the beach, camping, gardening, and hiking. She recently finished an amazing hike up Mount Washington!

Denise – Registered Dental Assistant

Denise received her dental assisting certificate from Middlesex Community College and joined our office in April of 2016. She has advanced her training, becoming a certified dental assistant (CDA). Denise has additional training in CPR and is a trained skill worker for individuals with intellectual and physical disabilities. Denise volunteers at the Lowell General Hospital Cancer Walk and loves to spend time with her family.


Liz – Patient Coordinator

Liz joined our team in June of 2020, as a patient coordinator, after prior experience as a Professional Relations Director of an endodontic office. She graduated from Northwestern University with a BA in Asian Studies, and spent a year living in Shizuoka, Japan immersing herself in the culture and language. As a patient coordinator, Liz assists our patients at the front desk in scheduling appointments, accepting payments, answering patient questions, and supporting the team with additional tasks. In her free time, Liz is often spending time with her son, and their unique pets, which include aquatic snails, frogs and colorful dwarf shrimp. She also enjoys reading, playing video games and spending time at the beach.



Coming Soon.