Our Team

Stacey Gallagher Tully, Executive Director

stacey@healthy-waltham.orgSGT Headshot

Stacey joins Healthy Waltham with decades of experience in health, human resources, sales/administration and business operations. She is well known as a dance and fitness instructor of students ages 2-92, at a multitude of venues including Waltham YMCA, Senior Citizen Center, schools and various gyms, as well as her work as President of the Friends of Waltham Senior Citizens, for which she received the honor of the 2014 Waltham Unsung Hero Award.

Recently, she ran for 9th Middlesex District Massachusetts State Representative against a long-term incumbent. She is well known as a community activist, with a hands on approach and known to work hard and get the job done. A Boston College graduate with a degree in Education, Stacey worked and traveled worldwide before returning to her home to raise her family with her husband Shawn. She is passionate about Waltham and very excited and energized to expand Healthy Waltham’s reach in our community.

Maria DiMaggio, Communications & Development Director


Maria DiMaggio is a Waltham resident with two children in the Waltham Public schools. An enthusiastic cook, gardener, and community volunteer, she worked previously in Corporate Communications and Marketing in the financial services industry for over 15 years. Maria was a founding member of “I to I” Waltham, a cooperative playgroup and parent support group. Maria earned a B.A. from Wesleyan University (CT) with a major in German, and received a Fulbright award for a year of study in Germany.  In addition to communications and development, Maria also coordinates our Waltham Connections for Healthy Aging initiative. Other interests include serving on the board of the Friends of the Waltham Public Library.


Rebecca Toutant, MA, RD, LDN, CDE, Nutrition Educator


Rebecca has worked in the field of health, wellness, and disease prevention for over a decade. She is a registered dietitian, personal trainer, and certified diabetes educator with special training in autism, celiac disease, diabetes, disordered eating, and sports nutrition. Her work focuses on helping children and adults develop positive and rewarding relationships with food and movement. Rebecca began her career as a personal trainer, helping clients achieve fitness goals and also leading adapted exercise (programs for individuals with developmental and physical disabilities), before furthering her education as a dietician and educator. At Healthy Waltham, Rebecca runs our program “Fearless Foodies” in partnership with the Waltham Public Schools. Rebecca’s kid-friendly food tastings, using delicious and innovative recipes and fun stories, encourage students to explore new foods and learn how these foods fuel growing bodies. Rebecca blogs at www.nourishingbitsandbites.com.