Meet the Doctor

  • Dr. Joseph Mascaro
    Chiropractic Physician

    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.


    Dr. 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

  • Dr. Michael Thomas
    Chiropractic Physician

    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.

  • Dr. Warren Geruso
    Chiropractic Physician

    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.

  • Dr. Carl Zapatka
    Chiropractic Physician

    A southeastern Connecticut native, Dr. Carl Zapatka attended Purdue University prior to earning his Doctor of Chiropractic degree in 1995 from Palmer College of Chiropractic in Iowa.  He began practice in Auburn, Massachusetts with focus on applied kinesiology.

    In 1998 Dr. Zapatka returned to Connecticut and practiced in Hartford, CT.  His focus was treating patients with traumatic soft tissue and work related injuries. In 2009 Dr. Zapatka received a fellowship in acupuncture and practiced in Norwich, CT. Dr. Zapatka also worked in a subluxation Family practice in Hebron, CT. Most recently in 2014, Dr. Zapatka joined the Advanced Back and Neck Care Center, LLC in Groton, CT as a chiropractic physician. His specialty is treating spinal related conditions of the neck, headaches, mid back, low back , arm/leg pain and other nerve conditions.

    “My philosophy is that health is affected by everything in an individual’s environment. I look to address the cause of structural imbalance and disease without traditional pharmaceuticals, prescription drugs or other chemicals. I firmly believe chiropractic care coupled with a healthy lifestyle including diet modifications, exercise and decreased environmental stresses can result in remarkable positive changes to the human body.”

    Licensed in Connecticut and Massachusetts

    FCAMI – Fellow Complimentary and Alternative Medical Institute

    Certified in Acupuncture

  • Dr. Huang Zhang PhD, LAc
    Licensed Acupuncturist

    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.  


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Reviews By Our Satisfied Patients

  • "I really appreciate everyone that works there, their friendly and professional help never fails to help me feel better."
    Robert E.
  • "I take my kids there regularly, and it has made a world of difference for my 5 year old daughter's ear infections."
    Alice M.