Dennis is the best!! I have moved around quite a bit and haven’t found a chiropractor that begins to compare to Dennis. He is very compassionate and takes the time to listen. He is also excellent at evaluating the problems and putting his patients at ease, making the adjustments much easier and smoother. I trust him 100% and would highly recommend him. Marblehead is lucky to have him!

Only two reviews?! Definitely needs more. I was recommended to Dr. OConnor after I did something to my back. I was is moderate to severe pain. I called up the office and they were able to fit me in the next day. Wow!After one session, Im already feeling way better. Dr. OConnor made me feel comfortable about what he was going to do to help me an was very detailed in his explanation. I knew right away that I was in the right place.Highly recommend.

Dennis is the best.. Ive just about crawled in his office and walked out. The doctor is a healer!

Dennis is very caring and an expert at chiropractic! Has helped me out a lot, plus gives out printed exercises to take home and apply! Top notch!

As a practicing orthopedic physical therapist for 24 years, Ive had the pleasure of working with Dr. OConnor, as well as being treated by him. Without reservation, I can recommend Dr. OConnor as the most knowledgeable, competent, and caring chiropractor Ive encountered. I have 100% trust in referring patients to him knowing that theyll be in experienced hands. His advanced training in orthopedics and sports medicine are an added bonus as he has expertise in not only the spine but peripheral joints. Dr. OConnor has frequently voiced advanced medical opinions to me, the accuracy of which was subsequently confirmed by imaging studies. I value his availability to treat emergent patients at off-hours and on the weekend - even making house calls. Dr. OConnor has a manner of putting at ease those who have never sought chiropractic care before. He truly is the best hands-on chiropractor Ive encountered!

Dr. OConnor is the best! He helps release pain and is available for appointments almost always! even saw me on a Sunday once when I could barely walk. He has excellent bedside manner and is a pleasure to be in his office.

The best chiropractor ever !!