About Our Doctors

Since 1982, North Meadows Family Dental (Formerly Thomas Family Dental Associates) has been a trusted provider of comprehensive dentistry in Medfield, Massachusetts. Our dentists, Dr. Ryan Collins, Dr. Erika Davis and Dr. Paulina Muller and associates, can help you create a healthier smile that you will look and feel great in. If you are interested in coming to our office for your next dental treatment, call our office for an appointment.

dr. collins

Ryan Collins, DMD

General Dentistry

Dr. Collins grew up in Southern Maine and received his bachelor degree from St. Anselm College in Manchester, NH. He then attended the Tufts University School of Dental Medicine and completed an Advanced Education in General Dentistry residency at the University of Connecticut. Dr. Collins is known for his gentle manner and the care he provides for his patients. He enjoys hiking, Boston sports, and spending time with his wife and two daughters.


Erica Davis, DMD

General Dentistry

Dr. Erica Davis graduated from Tufts University School of Dental Medicine in 2016, and then completed a 1-year Advanced Education in General Dentistry residency at the Providence VA Medical Center. For the past four and a half years, Dr. Davis has been providing dentistry for underserved populations in Dorchester, MA in a public health setting. She enjoys all aspects of dentistry, especially doing esthetic cases and working with children of all ages. She will be joining the practice part-time in November. Dr. Davis has a personal connection to the town of Medfield, as it is home to her horse Ted, who she visits daily. In her spare time, she also enjoys cooking, fantasy football, and spending time with her family and friends. 


Paulina Muller, DMD

General Dentistry

Dr. Paulina Muller grew up in Massachusetts and received her Bachelor of Science degree in Biology, with a minor in Anthropology, from Brandeis University in 2008. She went on to graduate from Tufts University School of Dental Medicine with a D.M.D. in 2012.

Dr. Muller brings her comprehensive dental experience to our practice. She enjoys keeping abreast in the latest dental research and attends numerous continuing education courses. She is an active member of the American Dental Association and Massachusetts Dental Society.

Dr. Muller enjoys being outdoors, playing with her dog, cooking, traveling, and spending time with her family. Dr. Muller speaks English, Russian and Spanish.

“I love working with people and helping them achieve their optimal oral health goals,” says Dr. Muller. “It makes me happy to make people feel good and have a beautiful and healthy smile.”

Gyusik Cho, DDS

Gyusik Cho, DDS


Dr. Gyusik Cho provides high-quality periodontal care for our patients. He received his Bachelor of Science from Georgetown University in 2005, then went on to pursue his Doctor of Dental Science from New York University College of Dentistry, graduating in 2012. He then received his Master of Science and Periodontal Certificate in 2015 from Boston University.

Every year, Dr. Cho continues to keep up to date on new techniques and procedures that will benefit patients and their smiles. He has received advanced training from the Boston University Goldman School of Dental Medicine, completed his post-graduate periodontology program in 2015 and has a certificate in periodontology. Dr. Cho’s goal is to treat every single patient with care.

Dr. Cho is a member of the American Association of Periodontology® and Massachusetts Dental Society.

Dr. Cho’s primary focus of treatment is on non-surgical and surgical periodontal therapy such as osseous surgery, crown lengthening, bone grafting, soft tissue surgery and implants. He has been practicing in the area since 2015, where he lives with his wife and child. They love to travel and spend time together.