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New Patient
$49 FIRST EXPERIENCE!

OFFICE HOURS

Saint Johns, FL

address-icon 2050 St John's Pkwy, Suite 107, St. Johns 32259

Office hours are subject to change, please make sure to call to confirm your appointment.

Mon: 8:00am-12:00pm, 2:00pm-6:00pm

Tues: 2:00pm-6:00pm

Wed: 8:00am-12:00pm, 2:00pm-6:00pm

Thurs: 8:00am-12:00pm, 2:00pm-6:00pm

Fri: 8:00am-12:00pm

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INSURANCE OPTIONS

We are committed to making quality healthcare accessible to as many people as possible. That's why we accept a wide range of insurance plans, including those for auto accidents, workers' compensation, personal injuries, and most health insurance plans, including Medicare.

Contact our team to find out more.

Chiropractic Care In Saint Johns, FL

2050 St John’s Pkwy, Suite 107, St. Johns 32259

Dr. Greg Tonnesen, D.C.

Welcome!

100% Chiropractic provides chiropractic care for people of all ages—from infants to seniors. We believe in overall natural wellness care and long-term chiropractic corrective care to prevent the bigger aches, pains, and sicknesses. We also see time and time again how chiropractic care helps people improve their quality of life by reducing and even eliminating pain and improving range of motion, which is especially important after an accident or sports injury prompts chiropractic care. Some of the conditions chiropractic helps with are:

  • Headaches and Migraines
  • Neck Pain
  • Back Pain
  • Family Wellness
  • Sports Injuries
  • Car Accidents
  • Prenatal Care

If you have been just coping with pain or have been meaning to find a chiropractor for wellness purposes, at 100% Chiropractic, we are your people. We treat each patient as an individual, finding out how we can serve each one and get their bodies to 100%.

5 out of 5 stars - 159 votes

5 Stars (159 Reviews)

WHAT OUR CLIENTS
HAVE TO SAY

I was always skeptical of chiropractors. When it was recommended by my primary doctor after exhausting every other avenue for relief of an issue I saw an opportunity online to just come in and try it at 100% Chiropratic. Dr. Jasmine and Dr. Greg wants to help you reach your greatest health...
I was always skeptical of chiropractors. When it was recommended by my primary doctor after exhausting every other avenue for relief of an issue I saw an opportunity online to just come in and try it at 100% Chiropratic. Dr. Jasmine and Dr. Greg wants to help you reach your greatest health goals, feel better, and experience life to the fullest. So 6 months later I’m still using the program specifically for my issue. If you’re like me and question if it’s advantageous. Just sign up for the no commitment initial visit and I’m betting you’ll be pleasantly surprised.The staff and doctors genuinely care!

100% Chiropractic has a wonderful staff and great doctors. They truly take the time to get to know you and understand some pain points that they can make better. Their expertise has drastically improved my way of life and has made my body feel good after years of weight lifting and sports. Their...
100% Chiropractic has a wonderful staff and great doctors. They truly take the time to get to know you and understand some pain points that they can make better. Their expertise has drastically improved my way of life and has made my body feel good after years of weight lifting and sports. Their staff is like family and I will continue my chiropractic care with them for time to come. Thank you 100% Chiropractic St John's!

How do you put into words when someone has truly changed your life? How do you describe an entire building filled with some of the kindest, most compassionate people you'll ever meet? The truth is—you really can't. But I'll do my best. I first called 100% Chiropractic after experiencing...
How do you put into words when someone has truly changed your life? How do you describe an entire building filled with some of the kindest, most compassionate people you'll ever meet? The truth is—you really can't. But I'll do my best. I first called 100% Chiropractic after experiencing numbness in my legs for months. After undergoing five MRIs, two CT scans, and four X-rays, I felt defeated. No one seemed willing to help or even knew where to begin. Then I found the team at 100% Chiropractic. My first conversation was with Miranda, an Office Manager extraordinaire. She immediately eased my fears and gave me something I hadn't felt in a long time—hope. She assured me that Dr. Greg and Dr. Jas were unlike any chiropractors I had encountered before and that they genuinely cared about their patients. She was absolutely right. From my very first visit to now, six weeks later, the warm smiles and welcoming atmosphere have remained exactly the same. Every single person on their team makes you feel valued, seen, and cared for. Dr. Greg and Dr. Jas are incredible human beings and true experts in their field. What sets them apart is their understanding of the body as a whole. They don't just focus on where the pain is—they understand how everything is connected. Their ability to identify the source of an issue, explain why it's happening, and create a path toward healing is remarkable. I don't write reviews very often, but when you encounter an entire staff of dedicated, skilled, and genuinely caring professionals—from the front desk to their amazing massage therapists—you have to sing their praises. I walked through their doors feeling defeated, in tremendous pain, slightly hunched over, and dealing with legs that would go numb multiple times a day. Today, I'm standing taller, walking straighter, and watching my symptoms decrease more and more with each passing week. If you've been considering seeing a chiropractor, stop searching. This is your sign. This is your confirmation. This is the place you need to be. To everyone at 100% Chiropractic: thank you. Thank you for giving me hope when I had little left. Thank you for helping me reclaim my health. Most importantly, thank you for changing my life. I am forever grateful.

I am just getting started with 100% chiropractic, yet I am already impressed; I felt compelled to write a review with five stars all the way! The staff, including Miranda and Greg, are fantastic, The Team is well organized, friendly., and make it all easy to understand. The space is light, airy,...
I am just getting started with 100% chiropractic, yet I am already impressed; I felt compelled to write a review with five stars all the way! The staff, including Miranda and Greg, are fantastic, The Team is well organized, friendly., and make it all easy to understand. The space is light, airy, clean. I highly recommend!

Dr. Greg and Dr. Jasmine are truly AMAZING! Both drs really take the time to fully educate you, diagnose and get to the root of the problem. They have helped me tremendously with my pain and their passion for what they do really shows by the way they treat their patients. Dr. Jasmine has been...
Dr. Greg and Dr. Jasmine are truly AMAZING! Both drs really take the time to fully educate you, diagnose and get to the root of the problem. They have helped me tremendously with my pain and their passion for what they do really shows by the way they treat their patients. Dr. Jasmine has been heaven sent when it comes to treating my 5 yr old daughter. She’s had numerous ear infections and just by the adjustments done by Dr. Jasmine we have seen major improvements. All of the staff really get to know you and make you feel valued. It really surprised me when every staff member called me by first name from the first visit. Thank you Dr. Greg and Dr. Jasmine!!

FINALLY!!! SOMEONE WHO LISTENS AND TAKES ACTION! Ive been going to chiro’s for years. I see amazing ones on YouTube, but everyone I come across does the typical crack back, maybe your neck and call it a day. Dr Jasmine is SO INTENTIONAL with every single adjustment - I’m so grateful for her...
FINALLY!!! SOMEONE WHO LISTENS AND TAKES ACTION! Ive been going to chiro’s for years. I see amazing ones on YouTube, but everyone I come across does the typical crack back, maybe your neck and call it a day. Dr Jasmine is SO INTENTIONAL with every single adjustment - I’m so grateful for her passion in serving others. Do yourself a favor and just schedule an appointment- your future self will thank you.

We absolutely love Dr. Jas, Dr. Greg, and their team! I started going during pregnancy and wish I would have started sooner. It helped so much with the aches and pains of pregnancy and getting baby into a better position. Now, a year later, we’ve continued to see the benefits for both me and...
We absolutely love Dr. Jas, Dr. Greg, and their team! I started going during pregnancy and wish I would have started sooner. It helped so much with the aches and pains of pregnancy and getting baby into a better position. Now, a year later, we’ve continued to see the benefits for both me and baby. I always feel so much better after an adjustment, especially with the tension in my back, and my headaches have gotten so much better. We have received compliments from our Peds team on our baby’s development and fluid movements and I truly owe it all to you all! So thankful we found this office!

This was my first visit. I am usually very skeptical when it comes to The chiropractor. But Maddie,Miranda and Dr. Jasmine were all so wonderful and welcoming. (I apologize if I got any names incorrect) I find it very amazing that Dr. Jasmine works with her husband in this practice. It gives it...
This was my first visit. I am usually very skeptical when it comes to The chiropractor. But Maddie,Miranda and Dr. Jasmine were all so wonderful and welcoming. (I apologize if I got any names incorrect) I find it very amazing that Dr. Jasmine works with her husband in this practice. It gives it a more family oriented home feeling. As well as Dr. Jasmine made me feel very comfortable and welcomed. I highly recommend this place for an intro to chiropractic, but there will be more sessions to be more informative about how the adjustments and massage and everything went. Thank you guys. I appreciate you for making me want to stay Let alone come back. Sending lots of love and prayers to this practice for lots of success!

Doctor examining and pointing at spinal X-ray images displayed on a wall-mounted screen in a medical office.

Chiropractic Services

Wellness Care for the Family: We treat anyone, no matter what age. From a newborn infant to a senior citizen, each person can benefit from the stimulation of the nervous system and proper alignment that adjustments provide. Adjustments are tailored to each patient and their comfort level. Obviously, an adjustment on a newborn doesn't look like an adjustment on someone training for a triathlon.

Corrective Chiropractic Care: Getting adjusted a few times can definitely help with immediate pain and subluxations, but to correctly heal the body so that long-term pain does not return and your body is functioning at 100%, we specialize in corrective chiropractic care. Corrective care is a process that resets the spine to its correct position on an incremental basis as opposed to waiting until you have a major injury or daily stresses, traumas, and toxins set in too much.

Accident and Sports Injury Chiropractic: Have you been in a car accident, had a rough fall, or sustained a sports injury? There can be serious repercussions to the body if your body heals from an accident without being in proper alignment first. After experiencing an accident or a sports injury, chiropractic services are essential as you might deal with pain daily if you don't reinforce proper alignment through adjustments while healing.

Massage Therapy: Massage therapy and chiropractic care go hand-in-hand. If our chiropractors think your treatment could be enhanced by massage therapy, we will suggest you see one of our therapists to aid your healing.

Young man in denim shirt holding his cheek in pain, indicating toothache or jaw discomfort.

Licensed Chiropractic Professionals

At 100% Chiropractic, we want to make a change in our community. We strive to see our community members and patients feeling 100%. Whether that means they can get through the workday without a headache, run that race without an injury, or chase their toddlers around all day, we are committed to seeing success from your treatments. From your chronic pain to your one-time sports injury, our chiropractors are your resource for complete health and well-being.

Our motto is "100% Integrity, 100% Commitment, 100% Chiropractic." We suggest the care you need to heal and maintain a healthy lifestyle depending on the cause of your pain, your goals for activity, and from reviewing x-rays of your spine if necessary. Our chiropractors are dedicated to our patients and are highly trained. Seeing people heal and maintain a healthy lifestyle is the biggest motivator here.

We know there are other chiropractors, and we are honored each time someone new chooses to walk into our office and trust their health to our chiropractors. We want to support our community by helping them stay active, reduce and eliminate pain, and teach them about wellness care instead of only looking to the medical community when they are sick. Come see us at 100% Chiropractic, and we will get you moving and also living life at 100%.

Smiling man with short hair and beard wearing a white polo shirt with Dr. Greg embroidered on it.

Doctor Highlights

About Dr. Greg Tonnesen, D.C.

Philosophy:
Dr. Greg believes in a natural approach to maintaining happiness, wellness, vitality, and peak performance through regular chiropractic adjustments, optimum nutrition, daily exercise, supplementation, and eliminating toxins and stress. His philosophy when treating patients is that proper structure will equate to proper function. When the bones and joints are misaligned, it creates added stress on the body via an abnormal feedback loop to the brain that is often hard to overcome. This, in-turn, creates added stress on the muscles, tendons, and ligaments that are attached. By removing the misalignments, there is less nerve interference, and the body is able to heal itself. When your body's structure is sound, your function will be optimal thus reducing injury, pain and ultimately… disease.

Specialties:

  • Full Spine Manual Adjusting
  • COX Flexion Distraction
  • Spinal Decompression
  • Thompson Drop-Table Technique
  • Sports Injury Recovery
  • Scoliosis Correction and Rehabilitation
  • Myofascial Release Technique
  • Nutritional Counseling
  • Prenatal/Pregnancy Care
  • Pediatric Care
  • Geriatric Care
Therapist providing shoulder support and comfort to patient wearing white sweater in a counseling session.

More About Dr. Greg Tonnesen, D.C.

Background:
Dr. Greg is a native of Salisbury, North Carolina; a small town north of Charlotte. As a lifetime lover of sports, his passion for baseball landed him at Campbell University where he played for the Fighting Camels. While at Campbell, he earned his Bachelors in Exercise Science with a minor in Biology. His interest in exercise physiology and human anatomy lead him down the path of healthcare and eventually to Chiropractic. After Dr. Greg hung up his baseball cleats for good, he headed to Atlanta, Georgia where he earned his Doctor of Chiropractic degree from Life University and graduated top of his class. Dr. Greg spent his most previous two years taking care of the Chattanooga, TN community while working in another 100% Chiropractic office. Dr. Greg loves all things sports and outdoors. He spends every free minute he can outside whether its at the lake boating and swimming, going for runs or hikes, or heading up to the mountains to go camping. Dr. Greg also loves to travel as he has taken several cross country road trips. If the weather doesn't allow him be outside, you can find him indoors watching sports or reading a good book. Along side Dr. Greg in the care of the practice members will be his wife, Dr. Jasmine. The two met in Chiropractic school and have had the pleasure of taking care of patients together, combining their knowledge and passion to get the best possible results. Dr. Greg loves to share his passion for health and exercise with others and can't wait to get to know the good folks of St. John's County!

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FIRST
EXPERIENCE

checkmark Posture Analysis with Fit3D Scanner
checkmark Doctor Exam with X-rays
checkmark 30 Min Massage
checkmark Your First Life Changing Chiropractic Adjustment