meet our team

Chiropractor Groton CT Joseph Mascaro

Dr. Joseph A. Mascaro D.C.

Dr. Mascaro graduated from New York Chiropractic College in 1984 with a doctorate in Chiropractic. He began practicing in New York, and moved to southeastern Connecticut where he opened the Advanced Back and Neck Care Center in 1986. Dr. Mascaro is the clinic director and lead chiropractic physician at Advanced Back & Neck, as he has been since the clinic's inception.

Chiropractic Groton CT AwardDr. Mascaro is a member of the International Chiropractic Association, the American Chiropractic Association, and the Connecticut Chiropractic Association. His involvement has included a role as Vice President of the Connecticut Chiropractic IPA and Second Vice President of the Connecticut Chiropractic Association.

Dr. Mascaro has also received the Thomas Nardilollo Memorial Award for clinical excellence and has lectured extensively on a number of health-related topics.

Dr. Mascaro is proud to announce that Advanced Back and Neck Care Center, LLC is now affiliated with the National Organization 'Disc Center of America.' They are the premier national organization for treating disc conditions with non surgical decompression treatment. For more information click here.

Chiropractor Groton CT Michael Thomas

Dr. Michael Thomas D.C.

Dr. Thomas has been in practice at Advanced Back and Neck Care Center, LLC for over 25 years. He received undergraduate degrees in both Biology and Human Biology from Southern Connecticut State University prior to earning his Doctorate of Chiropractic in 1993 from the National College of Chiropractic in Chicago.

Upon graduation, he returned to his home state of Connecticut where he began to practice chiropractic at Advanced Back and Neck Care Center.

Dr. Thomas has earned his certification as a Chiropractic Sports Physician through post-graduate work at New York College of Chiropractic, and is currently pursuing certification in Occupational Health, through Northwestern College of Chiropractic.

Dr. Thomas lectures on topics such as chiropractic, health, stress, fitness, ergonomics, nutrition, back school, and proper lifting. He is a member of the American Chiropractic Association, the Connecticut Chiropractic Association, and the Connecticut Sports Council.

Chiropractor Groton CT Warren Geruso

Dr. Warren Geruso D.C.

Dr. Geruso is a resident of Rhode Island where he attended the University of Rhode Island for his undergraduate work. He then earned his Doctorate of Chiropractic through Life College in Marietta, Georgia. He has been practicing at the Advanced Back and Neck Care Center since January 1998.

Dr. Geruso is a health enthusiast with a true passion for exercise and nutrition. He is an avid sports fan and enjoys quality family time.

Chiropractor Groton CT Daniel Mascaro

Dr. Daniel Mascaro D.C.

Dr. Daniel Mascaro was inspired to become a chiropractor by his father Dr. Joseph Mascaro at a very young age. He admired his fathers’ dedication to helping others, and was amazed at the life-changing results he was able to achieve with the chiropractic adjustment. At just five years old, after watching an adjustment, he turned to his father and said “I want to do what you do, Dad.”

Years later, after graduating from Quinnipiac University with a degree in Health and Science Studies, he decided to pursue his dream to become a chiropractor. He attended the world’s largest and most diverse chiropractic college at LIFE University in Atlanta, Georgia. While there, he had many life changing experiences and trained extensively on the art, science, and philosophy of chiropractic.

From there, he was recruited to work as an associate in one of the premier practices in the country in New Jersey. In that office, he attracted patients from all over the state for care with a specialized technique that restores whole body alignment through systematic release of tension lines along the spine. He went on to gain experience in East Haven, Connecticut for another two years. During his tenure in East Haven he focused on family care, helping everyone from newborns to great-grandparents live healthier and fuller lives. He also focused on helping patients recover from auto accidents and sports injuries.

Dr. Dan Mascaro joined Advanced Back and Neck Care Center in May of 2020 and is dedicated to serving the community by delivering high quality chiropractic care. He is currently an active member of the Connecticut Chiropractic Council. Dr. Dan’s mission in the office is to transform his patients’ health, thereby transforming their quality of life.

In his free time, Dr. Dan enjoys being outdoors, playing sports, and listening to music. Having been adjusted since birth, he will continue to get adjusted consistently for the rest of his life to keep his body functioning at the highest level possible so that he can continue to enjoy an active and healthy lifestyle.

Chiropractor Groton CT Matthew McNicholas

Dr. Matthew McNicholas D.C.

Dr. McNicholas was pursuing a degree in accounting when he received his first chiropractic adjustment from his sister, Meghan, which shifted his entire paradigm on healthcare from that point forward. He continued to get his accounting degree from the University of Connecticut, but also decided to pursue a goal of attending chiropractic school after graduation.

He achieved this goal when he graduated from the University of Bridgeport College of Chiropractic and began working with his sister in his childhood hometown of Southington, Connecticut. While working there he received specialized training in upper cervical specific technique and had the pleasure of helping a lot of families achieve optimal health including many pregnant mothers and newborns. He has spent the last three years working in a chiropractic office in downtown Hartford, Connecticut, where he served a wide variety of patients from businesspeople to athletes to local families.

His life’s journey has brought him down to Southeastern Connecticut, and he’s excited to serve the population in this area. He’s an active member of the Connecticut Chiropractic Council. Outside of the office he enjoys reading, all things sport related, and spending time with family.

Chiropractic Groton CT Dr. Huang Zhang PhD, LAc

Dr. Huan Zhang PhD, LAc

Dr. Huan Zhang studied East Asian Medicine at the University of Bridgeport Acupuncture Institute, and graduated in 2016 with a Master’s Degree in Acupuncture. Before studying East Asian Medicine, he obtained his Ph.D. in Molecular Biology in 1995 and did research in Japan and America for over 25 years.

He is fluent in English, Chinese and Japanese, is able to read and understand the original literatures of East Asian Medicine written in Chinese and Japanese, and have in-depth discussions with acupuncturists in United States, China and Japan.

Dr. Zhang treats patients with health issues ranging from (but not limited to) Back and Neck pain, Arthritis, Sciatica, Headaches, Digestion issues, Strokes, Constipation, Insomnia, Anxiety, Stress, Fertility, Menopause, and Weight Loss.

Dr. Zhang is currently accepting new patients and offers a Complimentary Consultation to discuss the patients concerns or apprehension of treatment.


Additonal Hours Are
Available By Appointment

10:00am - 5:00pm

8:00am - 1:00pm

10:00am - 5:00pm

8:00am - 1:00pm

10:00am - 5:00pm

Advanced Back
and Neck Care Center

565 Long Hill Road
Groton, CT 06340
(860) 448-2225

Disc Centers of America