Find Your Relief Today.
Serving Rockville For Over 30 Years.

Monday: 10:30am - 6:00pm
Tuesday: 7:00am - 3:00pm
Wednesday: 7:00am - 3:00pm
Thursday: 10:30 - 6:00pm        Sat: 9:00am-12:00pm
Friday: 7:00am - 3:00pm          Sun: Closed

Call Today
(301) 738-1148

New Patient Signup

Get a consultation, exam and adjustment with Dr. Cullen.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Our Services

Unlocking your full potential.

Our purpose is to help you achieve pain free movement and optimal function with research based Chiropractic care and Physical Therapy.


Our Clients Trust Us

Contact us today to learn why we are the best rated DMV chiropractor and functional medicine practitioner by our patients.

Sheila M.

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.

Nichole G.

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!

Frank G.

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! Since then, I have exclusively been going to see Dr. Cullen for all of my chiropractic needs. 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.

451 Hungerford Dr., Suite 510 Rockville, MD 20850

Mon & Thurs: 11:00am - 6:00pm
Tues - Weds: 7:00am - 3:00pm
Friday: 6am - 12pm
Sat - Sun: Closed

Our Mission

Quality over Quantity.
To give you the tools to become independent with your health and get back to a pain free life.

We pride ourselves on providing convenient and affordable chiropractic care focused on your unique needs and goals. Whether you’re seeking pain relief or preventative care, you can expect our patient-centric approach to be new and different from any healthcare experience you’ve had before. Perhaps even life-changing.

State of the art facility and equipment
Full Service Chiropractic Rehab & Wellness
Quality Care by Licensed Professionals
No Insurance Hassles

Meet Your Doctor

Dr. William Cullen, D.C.

Dr. Cullen grew up in Laytonsville, Maryland spending most of his childhood playing a variety of sports until he attended Salisbury State University to play baseball. Dr. Cullen graduated from Salisbury in 2015 with a Bachelor of Science degree in Exercise Science. He then shadowed the former owner of this practice for 1,000 hours before attending Palmer College of Chiropractic - Florida Campus in 2016. After graduating with honors from Chiropractic school in 2019, Dr. Cullen took a job here as an associate for two years and is now the sole owner of the practice. Having suffered from a torn ACL and ruptured disc in the lower back resulting in severe sciatica, Dr. Cullen understands what it takes to recover from and avoid major surgeries through chiropractic care and physical therapy.
I know the frustration of bouncing between doctors and treatments, waiting for imaging results and diagnosis. I want to fix that for every patient that walks through my door.

We want you to be happy and healthy, that’s why we’re here.

Chiropractic is more than just a solution for back pain, it’s key to a healthy lifestyle. Learn how you and your family can benefit from care at Advanced Chiropractic of Rockville, Maryland.


Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

News & Articles