Our Providers

Meet Dr. Tim Gallagher, Founder & CEO
Timothy Gallagher, D.C., Founder and CEO of Gallagher Chiropractic P.C., is a licensed chiropractor and has been serving patients in Central Massachusetts since 1997. Dr. Gallagher earned his undergraduate degree from the University of Massachusetts. He went on to receive his Doctor of Chiropractic at New York Chiropractic College in 1996.

Dr. Gallagher has always believed in a team approach to patient care, and in 2018 decided to partner with Maragal Medical and Michael Marciello, M.D. to be able to provide his patients with the best full-service care possible.

Dr. Gallagher’s expert diagnostic skills allow him to get to the root cause of the patient’s problem. Once a diagnosis has been made the clinicians at GCPC are able to offer cutting-edge treatment options including chiropractic care, Class 4 laser therapy, weight management, and orthotics to help stabilize the patient’s condition.

Dr. Gallagher is the first chiropractor in New England to partner with a medical provider to form an MSO and full-service Medical and Chiropractic Clinic and is one of the only clinics in the region to offer Cox cervical and lumbar decompression therapy for more complicated spinal cases. He treats most common ailments, including sciatica, neck pain, back pain, arthritic pain, plantar fasciitis, and more. Dr. Gallagher customizes every treatment plan to meet the needs of each individual patient.

Outside of the office, Dr. Gallagher enjoys traveling, playing tennis, and watching his children grow up. He currently lives in Lexington, Massachusetts, with his wife and their two children.

Meet Dr. David Sherman, DC
Dr. David Sherman graduated from Palmer College of Chiropractic in 1997, helping people feel better for over 20 years. While at Palmer College, he interned in extremity training, teaching other chiropractors at seminars. He has also done post graduate training in Rehabilitation of the Spine and was certified as a Certified Strength and Conditioning Specialist (CSCS) thru the NSCA. He recently became the team trainer for his son’s traveling soccer team & enjoys working with athletes of all levels.

Dr. Dave works with all ages from infants to elderly, helping people to improve their body’s ability to function at it’s best by creating balance and symmetry of the spine and body to be able to do the things in life that they enjoy the most. He has been at Dr. Gallagher’s office for the past 4 years with a great appreciation for Cox Decompression as he was a patient first, getting help on his own neck before joining the practice as a chiropractor.

Dr. Sherman is married to Claudia with a son David and canine companion Rocky. He enjoys traveling as well being outdoors with his family in the country setting at their home in Douglas.

EDUCATION
Undergraduate studies: University of Massachusetts, Amherst, Psychology
Doctor of Chiropractic: Palmer College of Chiropractic, Davenport, Iowa

LICENSURE
MA 2199

Meet Dr. Rebecca Brooks, DC

Dr Rebecca Brooks is a board certified chiropractor with a special interest in low back and hip pain, muscular imbalances and the Biotensegrity model. She earned her Chiropractic degree at the Anglo-European College of Chiropractic in Bournemouth, England. She currently resides in Westminster, MA with her daughter where she enjoys spending her free time exploring nearby hiking trails, keeping up with her fitness goals and improving her painting skills.

Meet Dr. Tyler Cyr, DC

Dr. Tyler Cyr is a chiropractor with Gallagher Chiropractic P.C. in Leominster, Massachusetts. He is committed to providing attentive, patient-centered chiropractic care focused on helping individuals improve mobility, function, and overall well-being.

Dr. Cyr takes the time to understand each patient’s individual concerns and health goals, working to provide care tailored to their specific needs. His approach emphasizes improving function, reducing discomfort, and helping patients stay active and engaged in the activities that matter most to them.

As part of the team at Gallagher Chiropractic P.C., Dr. Cyr is dedicated to creating a welcoming and supportive experience where patients feel comfortable, informed, and confident in their care.

Meet Colleen Gallagher, DPT

Colleen Gallagher, DPT has been a practicing Physical Therapist since 2000.

Colleen grew up in California and started her studies at the University of Arizona, where she earned a Bachelor of Science in Health Sciences. She later returned to California to complete her Master of Physical Therapy at Chapman University. In 2002, she received her Doctor of Physical Therapy from the MGH Institute of Health Professions in Boston, MA.

Before joining Maragal Medical in 2019 as Director of Rehabilitation Services, Colleen worked as a Physical Therapist at Brigham and Women’s Hospital and Lahey Hospital. She is now the owner and director of Gallagher Physical Therapy. Outside of work, Colleen enjoys spending time with her family, volunteering in the community, and traveling.