Our Practice

Medical Aesthetics of New England applies the most leading edge cosmetic technology available today to treat your skin concerns, combining the safety of a medical and laser center with a comfortable spa-like setting.

Under the partnership of Dr. Gert Walter and Stephanie Liatsis, RN, we are dedicated to bringing the very best therapeutic and aesthetic services and products to our clients. We are at the forefront of groundbreaking technologies, using state-of-the-art equipment and medical-strength skin care products to restore your skin and help you look your best.

We are a Top 500 provider in the Allergan Partner Privileges® Program, which means we are one of the top 5 providers of Botox® Cosmetic and Juvederm® Injectable Gel fillers in New England. We also carry a unique line of physician-grade cosmeceuticals. These specialized skin-care regimens are crucial in retarding aging and sun damage, as well as helping to improve and prolong the results of any cosmetic procedures.

Not only has Dr Walter developed some innovative combinations of procedures to provide optimal outcomes, we also have the latest and safest advances in skin care available for you.

Our staff has been extensively trained in the use of lasers and other advanced light treatments, as well as in other skin care procedures, in order to bring you the superior results you are looking for.

Dr. Gert Walter, MD


Dr. Gert Walter, MD, FACEP is our on-site physician. He has been a clinical instructor for the University of Massachusetts Medical School, a fellow of the American Society of Laser Medicine and Surgery and the American Board of Emergency Medicine, a member of the Faculty of the American College of Emergency Medicine, and a member of the American Society of Laser Medicine and Surgery and American Academy of Cosmetic Physicians, as well as the American College of Emergency Physicians.

He has received specialized aesthetic training at the Anti-Aging Institute in Texas, as well as being trained in VASER® techniques at the Advanced Body Institute in Colorado. A graduate of the Tufts University School of Medicine, Dr. Walter is also board certified in Emergency Medicine and works in the Emergency Department at Emerson Hospital in Concord.

Get to know Dr. Walter personally! Click here!

A former president, board member and national councilor of the Massachusetts College of Emergency Physicians, he has received their Distinguished Service Award, President Award and Vanguard Award in recognition of his service to patients and emergency medicine. Dr. Walter has also worked extensively with the state Department of Public Health to help implement the Massachusetts Stroke Service Center Program for hospitals and improve emergency medical services across the state.

Stephanie Liatsis, RN


Stephanie Liatsis, RN is one of the top injectors of BOTOX® and fillers in New England. Her superior technique is recognized by Allergan (the makers of BOTOX® and JUVÉDERM®); who selected her to train physicians and nurses from all over the country in advanced applications for BOTOX® and cosmetic fillers. In addition to specialty training in Emergency Medicine and her dermatological and aesthetic experience, Stephanie has trained at the Esthetic Skin Institute for Physicians and Nurses in Ft. Lauderdale, FL.

A member of the Aesthetic Nurses’ Association of New England and AMEN (Association of Medical Esthetic Nurses), she is also a member of AMMG (Age Management Medicine Group).

Tammy D’Agostino


Tammy is our Chief Technician. She graduated from the Assabet Valley Esthetics program in February 2006. Her biggest reward in life is her family, including her four daughters, and working with the team at Medical Aesthetics of New England, PC. Tammy likes to demonstrate and teach skin care, and make people feel secure about themselves.

She strives to help people look and feel more confident about maintaining ideal care of their skin, including proper cleansing, moisturizing, toning and applying makeup so that it looks natural. “When people feel better about their complexion, they feel better about themselves.”

Amanda Morais, LPN


Amanda is an LPN who graduated from the Mt Wachusetts College program in 2010. She had previously completed her aesthetician training at the Catherine Hinds School. In just a few years Amanda has a huge following of satisfied clients. She enjoys administering Botox and fillers, as well as a variety of aesthetic treatments.

Amanda says “My mom is an RN and works in the aesthetics field. She has been my mentor and has been a strong role model for me. I’m really looking forward to following in her footsteps.”

Terry Wheaton

004Terry comes to us with many years of office managerial, reception and customer service relations experience. She has worked in the beauty and fashion industry for over 15 years culminating in an easy transition joining us as our Client Concierge.


Brenda Puente


Brenda Puente joined Medical Aesthetics of New England in 2018 with more than 10 years of customer service experience. She is extremely organized and her knowledge and expertise in medical and beauty spas has allowed her to assure our clients feel at ease. As the newest member to join the stellar Medical Aesthetics team, Brenda is dedicated to friendly, knowledgeable and professional customer service. She strives to give everyone a wonderful experience making them feel comfortable and welcome.

Garrett Davieau


Garrett is our in-house technical guru. Garrett received his Associates degree in Computer Information Systems from Mt. Wachusett Community College along with completing a 4 year Information Systems curriculum at Montachusett Vocational Technical High School. Garrett has over 13+ years’ experience working in the technology field. When he is not resurrecting a sick computer he is busy chasing after 4 young children and a Great Dane with his wife. In his spare time Garrett enjoys working on all things mechanical.