Highly recommend Dr. William Cullen, who took over the chiropractic practice from Dr. Don McGriff. Dr. Cullen is friendly, compassionate and well-trained in the chiropractic arts and physical therapy. I had acute lower back pain due to a disc bulge and couldnt even sit without sciatic pain. After several months of therapy, advice for home exercises and tips on proper body alignment, years of stiffened muscles and bad posture from sitting all-day at the desk have melted away! The office staff are friendly, and the newly renovated office is clean and relaxing. Dont bother to try anywhere else.

I have been going to see Dr. McGriff and Dr. Cullen for over 12 years. Both Dr’s are a wealth of knowledge and expertise. Their demeanor and professionalism put you to ease quickly. I go on a regular basis to help recovery time since I am a competitive tennis player. I certainly wouldn’t be able to play at the level I am now without their treatment.

I had been having neck pain for the last year with no relief from PT. Decided to look for a chiropractor and had received several recommendations for Dr. Cullen. Dr. Cullen was able to diagnose the problem and explained his treatment plan. I was very impressed with his knowledge and felt totally confident in his care. It was a wonderful feeling waking up one morning with no more pain. I would highly recommend this practice and everyone in the office is very friendly and efficient.

I first saw Dr. McGriff over 10 years ago as a high school athlete that needed athletic treatment. It was great and exactly what I needed to perform on the field. Since then, I have exclusively been going to see Dr. Cullen for all of my chiropractic needs. He is great and very thorough. I highly recommend their practice because they are not get in, get out doctors that will try to sell you some plan of adjustments. They truly care in your health and their goal is to NOT see you in the office.

My boyfriend has been complaining of significant low back pain for some time now so I suggested he see a chiropractor. He has a pretty physical job and lifts heavy weights on a regular basis. We found Dr. Cullen through the BCBS portal, did some research and decided to go with Advanced Chiropractic. I was able to get him a new patient appointment the same day I called and he walked out feeling great! He said Dr. Cullen was very knowledgeable and so helpful to him as well as his support staff. I highly recommend!

If Dr. Cullen can’t fix it, no one can. Dr. Bill performed wizard-like magic on my body with the healing powers of a thousand suns. I tore my meniscus running a few weeks before a trip south to skydive and I thought my trip was ruined and my money was lost. One visit to Dr B and I was convinced I had a new knee immediately after. His treatments were not only effective and helpful, but he provided exercises and ways to heal before, during, and after my trip. And we haven’t even gotten to the best part; his professionalism. Dr. B moves around the office with the strength of a 4 star general, the heart of a monk, and the mind of an Einstein. He makes you feel welcomed like you’re at your favorite bar, educates you like your favorite teacher, and helps you like your favorite coach. It’s an hour from where I live and I won’t go anywhere else or recommend anywhere else but Dr Billy Cullen for chiropractic needs, presidency, or anything he’s probably more than qualified for. Thanks again bill!

Dr. Cullen is one of the BEST chiropractors I have ever been adjusted by. He was able to adjust areas and deliver relief in areas that I thought were impossible. I highly recommend getting treatment from Dr. Cullen and his staff, they deliver outstanding levels of care and concern to their patients.

Dr. Cullen is very professional, knowledgeable, and personable. He has a thorough understanding of the human body, and he does a great job with explaining the technicalities of his treatments in simple terms. He also has tremendous control when providing treatment, and he ensures his patients are comfortable.

By far the best! Dr. Cullen genuinely cares about his patients, he helped me get back to normal after a severe disc injury playing ball. Any athletes in the DMV area look no further, Dr. Cullen literally has your back. Highly recommend 10/10!

Dr. McGriff and Dr. Cullen have the best healing hands in the business. Their dedication to their patients well well being and overall health is remarkable. The entire staff is caring, kind and humorous. My mobility and relief from sciatica as improved tremendously in such a short time.

I had been quietly suffering for a very long time with some lower back/sciatica issues. The thought of somebody cracking parts of my body made me very uncomfortable, but eventually the pain became unbearable and I knew I needed something to change.Dr. Cullen was amazing from the gates. Extremely professional and knowledgeable. He could tell that I was extremely uncomfortable so he educated me and he talked me through everything as he was doing it which calmed me down and made a huge difference.After 2 sessions I saw a vast improvement and after the 6th session I felt as though I was finally reclaiming my life back.HIGHLY recommend Dr. Cullen and am forever grateful for what his work has done for my health.

Dr. Cullen is knowledgable, friendly, and passionate about helping people. He’s great at what he does and makes you feel very comfortable and well informed! Highly recommend!!

Both doctors are amazing! I’ve been going for over a year-weekly. Pain free! Terrific office staff!

I have been going to Dr Cullen for a couple years now... he’s helped me with neck and hip pain and I would certainly recommend him to anyone looking for a chiropractor they can rely on. Can’t go wrong with Dr Cullen

Dr. Cullen is hands down the best chiropractor in the area. His attention to detail, knowledge and care for my well-being is what keeps me coming back !!! If I could give 10 stars, I would.

Dr Cullen is amazing. Always walk out feeling 10x better than when I arrived. Couldnt recommend more if you need a chiropractor.

Dr. Cullen always takes great care of his patients and makes them feel at ease! Best Chiro in MOCO if not MD.

Very professional and rarely ever a wait time! Doctors are very quick to serve and help and will actually highly recommend!

All I have to say is Dr. Cullen has the best hands in his profession. I have been seeing Chiros for the last 11 years due to a broken vertebrae and a long sports career so back problems have always been a thing for me, but not since I started seeing Dr. Cullen! I can honestly say I would not feel the way I do today without the help of Dr. Cullen! Thank you!

Dr. Cullen was great. I have had numerous injuries over the years from sports and kind of just dealt with the pain as a result. I went in for my first visit and came out feeling way better than I did before. 10/10 recommend going to visit Dr. Cullen

Dr Mgriff is amazing!! One of the most experienced chiropractors that I have ever been to. He spent time, educated me and then put a plan together to help me with not only feeling better but being healthier! Highly recommend him to anyone in the Rockville area who needs a genuine professional chiropractor.

Great service! Highly recommend!

The doctor and his team are great professionals. With your help, my husband was able to heal a back injury. My child suffering from a slight scoliosis is treated with care and compassion. The Doctor is a professional who knows what he does, very friendly and sympathetic to the pain of others. Besides everything it is very enthusiastic. We recommend 100%. Thank you Doctor Donald McGriff.