Welcome to MG Chiropractic LLC

Our chiropractor proudly serves patients in the Ballard and Fremont neighborhoods of Seattle. We focus on giving the body what it needs to heal itself. That process starts with chiropractic care and ends with proper life changes. The life changes can be as simple as heel supports and as “complex” as nutritional support. At MG Chiropractic, we address all aspects of your health. Chiropractic is a full-body form of healthcare that focuses on healthy joints and an unobstructed nervous system.

Without healthy joints, we stop moving, and our bodies begin to break down.  Without a properly functioning nervous system, our entire body begins to break down. Objects in motion stay in motion, a philosophy reminding us that the longer we move, the longer we will continue to move. It’s also a philosophy that best summarizes Dr. Mason Greenslade’s goal to keep patients moving for as long as possible.

MG Chiropractic: Your Ballard and Fremont Chiropractor.

About Our Office

We strive to give our patients the very best chiropractic care available. We also work hard to make sure to offer the most up-to-date chiropractic services so that you are able to walk out of each appointment feeling even better than you did after the last one. It is always our goal to improve your life through chiropractic care.

We want you to enjoy your time seeing us. You will be greeted by our friendly and knowledgeable receptionist and staff. Your chiropractic needs will be taken care of by our compassionate chiropractor and our support staff.


I went to see Dr. Greenslade because of severe, debilitating low back issues that kept me from walking, sitting, standing or laying down comfortably (or at all). Within the first visit I experienced a tremendous amount of relief and after a few visits felt completely renewed and strong again. I believe that Dr. Greenslade is a true healer and offers more than just ‘clinical’ care, he has an intuitive knowingness about the body that you don’t always get in western medicine. His approach is subtle yet impactful. And the atmosphere in the office is really calming. I highly recommend seeing Dr. Greenslade to help you get [your body] back into alignment.

Ruby S.

I highly recommend seeing Dr. Mason. After being t-boned in a car accident, my first action toward healing was to find a good chiropractor. I had never felt that much pain before in my life. I could barely do household chores, walk my dog and participate in social activities. But, even after just a few sessions with him, I started to improve dramatically. I’ve been working with him for a few months now and am feeling good again thanks to him and my PT. He is very friendly, extremely knowledgeable and can help you with any pain/discomfort you’re experiencing. Highly recommend!

Katherine C.

I’ve had a great experience working with Dr Greenslade. I initially started seeing him for a problem with my neck, which he was easily able to diagnose and treat. Working together, we were able to discover some triggers for this issue and have a plan in place for me to avoid this going forward. He is highly knowledgeable and a pleasure to work with. I always look forward to my visits. Couldn’t recommend his clinic more highly.

Brett M.

I have scoliosis and am a yoga instructor so it’s super important for me to find a chiropractor that understands the WHOLE body – inside and out. I’ve had my share of chiropractors over 17 years and Dr. Mason is the first chiropractor I’ve seen who primarily uses the activator method for treatment. Now I wonder how I’ve gone this long without it! Dr. Mason is thorough in his assessments (during EVERY visit) and gets to the root cause of issues. He’s flexible in scheduling and easily accessible. Totally recommend him for folks looking for more caring, holistic adjustments and not just you’re one and done.

Leilani A.

Dr. Mason M. Greenslade has exceeded my expectations with his ability to help relieve my chronic lower back pain. I have felt a world of a difference from the time I started seeing him (I was crying from pain) to where I am now, experiencing minimal pain. I was also feeling constant stiffness in my wrist, which I had no idea was tied to the back issues. After several visits I now have full mobility in my wrist again. I feel like a brand new person!! Highly recommend seeing Dr. Mason M. Greenslade.

Jess M.

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