I have been going to Core Chiropractic for a couple of months. I had terrible back pain and neck pain. Going has made such a huge difference for me. I have no doubt this treatment will help me avoid surgery. Dr. Tinker is amazing. He spends time listening and I never feel rushed. He also educates you about your treatment and also other things you can do for yourself. The entire staff is so friendly and helpful. It is a very well run practice. I look forward to every visit.
- Jennifer D.

Dr. Tinker and the staff at Sambursky Chiropractic have been a huge blessing I’m I am so thankful to have found this practice. I came to Dr. Tinker with neck pain, lower back pain, etc and am pleased to say I am feeling so much better. I am a mom to 3 and scheduling can at times be stressful, but they are so wonderful and work with you to get you in when you can come.
As anyone who has been a chiropractic patient before, it’s not a “one time- fix all” visit; it’s a process of healing and takes time. But if you stay committed to the process and do what Dr Tinker recommends, you will feel better than you have in a while! I would highly recommend Sambursky Chiropractic based on their personalized commitment to your healing and well-being.
- Kesia N.

My fiancee had suffered from back and neck pain for years due in part to fibromyalgia. She had tried doctors and a variety of prescriptions with no relief. She then tried a massage therapist who after a couple of sessions gave her a business card for Dr. Justin Tinker at the Sambursky Chiropractic Clinic.

I made an appointment for her and after listening to her needs, he did a thorough examination and took time to review the results in detail with both of us. He set up a personalized program for her and after the first two sessions she could already feel the results.
Now she is half way through the program and is almost pain free. Because he listens and truly cares about his patients, I would highly recommend him to anyone who suffers from muscle and joint pain.
In addition to Dr. Tinker, he has a support staff who listen to the patient's needs and concerns in the same way as the doctor. The clinic is highly recommended without any reservations. Definitely a five star.

- Donald R.

Hands down the best chiropractic practice in town! Super professional and knowledgeable staff. Dr. Tinker gave a very comprehensive treatment plan for my particular diagnosis and explained every facet of the plan in detail on why each treatment was needed and how they would be implemented. In addition to all of this, everyone in the practice is super friendly and very personable!
- Austin R. 

LOVE. I have severe scoliosis and had to find a chiropractor after relocating from Pennsylvania. After trying out 3 other chiropractors I was still in pain and feeling defeated and depressed. I am so glad I didn’t give up!! This place is the best! Everyone is so friendly and work with my crazy life of 3 kids and a new job. I was able to jog for the first time since the first week of March without low back pain last week. I drive 40 minutes to get here so that should tell you enough.
- Erin L.

I’ve been going to Sambursky for a few months now and it’s been an excellent experience. Dr. Tinker is awesome and always makes me feel important and like he genuinely wants to help me. I’ve noticed a huge difference in my headaches and mental health since going here! I highly recommend Core Chiropractic to everyone!
- Jake W.

Dr. Tinker and his entire staff provide an office setting that is personable, pleasant, and relaxing while at the same time being professional, knowledgeable, and therapeutic. Dr. Tinker always has a smile on his face and is always more than happy to share information about how you can make your life a little better and easier.
- Thom B.

Amazing! Rejuvenating! Care at every level! These are just a few of the words that I use to describe the outstanding level of treatment from this office. Their service and attention to detail not only improves my health and well-being, it enables me to keep my life prospering in this hectic world. They serve my whole family with excellence and we are thriving, thanks to their knowledge and concern. I highly recommend this warm, welcoming and expert Team for whatever ails you!
- Bethany S.

Dr. Tinker is such a sweet guy. He's a very energetic person but is also very careful with my back and neck. I was pretty skeptical of chiropractic at first, but his team is very thorough and attentive to each patient's individual needs. He really does listen and you can learn a lot from him when he explains things to his patients. His team has worked very hard during COVID to still provide services, while being attentive to the safety needs of his patients. Dr. Tinker is a person who is truly passionate about what he does, and you will not find a lot of doctors like him! He is highly educated, very funny, and always goes the extra mile for his patients!
- Danielle

We value our patients' experience at Core Chiropractic. If you are currently a chiropractic patient, please feel free to complete the following Client Experience Questionnaire. The Questionnaire is in Adobe Acrobat format, and requires the free Acrobat Reader to view.

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Dr. Justin Tinker
Your Jacksonville Chiropractor

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Our Regular Schedule


8:00 am-12:00 pm

3:00 pm-6:30 pm


8:00 am-12:00 pm

3:00 pm-6:30 pm


8:00 am-12:00 pm

3:00 pm-6:30 pm


8:00 am-12:00 pm

3:00 pm-6:30 pm


By Appointment Only