Functional Medicine & Root-Cause Care
Dr. Koji Aoki, DC, is a licensed Doctor of Chiropractic and functional medicine practitioner at Keystone Total Health in Columbia, Tennessee. He specializes in helping children and adults with complex, chronic health conditions uncover and address the root causes of their symptoms. By combining chiropractic care with functional medicine, nutrition, and integrative therapies, Dr. Aoki helps patients restore balance, resilience, and long-term health rather than relying on symptom management alone.
Dr. Aoki is especially known for working with patients who have not found answers through conventional care. His clinical approach is thoughtful, personalized, and deeply investigative, focusing on how the nervous system, immune system, gut, and environment interact to influence overall health.
A Root-Cause Approach to Healing
Dr. Aoki believes that true healing begins by understanding why symptoms are occurring. Instead of chasing individual complaints, he evaluates patterns across the body to identify underlying drivers such as inflammation, immune dysfunction, toxic burden, infections, nutritional deficiencies, and neurological stress.
At Keystone Total Health, Dr. Aoki integrates chiropractic adjustments with functional medicine principles to support the nervous system and optimize communication throughout the body. This whole-person approach allows care plans to be tailored to each individual’s biology, history, and health goals.
Patients often seek Dr. Aoki’s care after years of unresolved symptoms, multiple diagnoses, or frustration with temporary solutions. His goal is to help patients feel heard, understood, and empowered throughout their healing journey.
Conditions Commonly Addressed
Dr. Aoki focuses his clinical care on complex pediatric and chronic illness cases that require a deeper, more integrative approach. Many of his patients are children or adults who have not improved with conventional care and are seeking answers for persistent, often misunderstood symptoms.
A significant portion of Dr. Aoki’s practice is dedicated to pediatric functional medicine, including children with neuroimmune and inflammatory conditions such as PANS and PANDAS. He works closely with families to identify underlying triggers such as infections, immune dysregulation, gut dysfunction, toxic exposure, and nervous system stress that may be contributing to behavioral changes, mood symptoms, anxiety, developmental concerns, or chronic inflammation.
Dr. Aoki also specializes in supporting patients with chronic Lyme disease and co-infections, as well as mold illness and chronic inflammatory response syndrome (CIRS). These conditions often involve complex interactions between the immune system, nervous system, and environmental exposures. His root-cause approach helps patients address biotoxin exposure, inflammation, detoxification pathways, and immune balance in a thoughtful, individualized way.
In addition, Dr. Aoki commonly works with chronic fatigue, brain fog, headaches, digestive dysfunction, hormonal imbalances, and ongoing inflammatory symptoms that affect both children and adults.
Pediatric Functional Medicine
Gentle, root-cause care for children with complex immune and neurological symptoms, including PANS, PANDAS, inflammation, and behavioral changes.
Lyme Disease & Chronic Infections
Support for children and adults with chronic Lyme and co-infections by addressing immune dysfunction, inflammation, and underlying contributors to ongoing symptoms.
Mold Illness & Toxic Load (CIRS)
Care for patients affected by mold exposure and biotoxin illness, focused on reducing inflammation and supporting detoxification and recovery.
Personalized Root-Cause Care
Individualized treatment plans that look beyond symptoms to identify and address the root causes of chronic and complex health conditions.
Pediatric & Family-Focused Care
Dr. Aoki has a strong passion for pediatric care and works closely with families navigating complex childhood conditions. His approach is gentle, individualized, and focused on supporting neurological development, immune balance, and overall resilience. Parents often appreciate his ability to explain complex concepts clearly and to create care plans that are realistic and supportive for the entire family.
What to Expect When You Work With Dr. Aoki
Your care with Dr. Aoki begins with a comprehensive initial appointment designed to understand the full picture of your or your child’s health. This visit includes an in-depth health history, review of symptoms and patterns, assessment of lifestyle and environmental factors, and discussion of prior testing or diagnoses. When appropriate, advanced functional testing may be recommended to help uncover underlying drivers such as infections, inflammation, immune imbalance, toxic burden, or nervous system stress.
Following the initial appointment, most patients are recommended to participate in one of Keystone Total Health’s Intensive Care Programs before moving into standard follow-up visits. Patients can learn more about our Intensive Care Programs on the Keystone Total Health website. These intensives are designed to create momentum early in care by providing focused support, deeper analysis, and targeted therapeutic strategies during the critical early phase of healing. This approach is especially beneficial for complex pediatric cases, Lyme disease, mold illness, and other chronic inflammatory or neuroimmune conditions.
After completing an intensive, patients transition into ongoing follow-up appointments with Dr. Aoki. These visits focus on monitoring progress, adjusting the care plan, and continuing to support healing over time. Education and collaboration remain a central part of care, helping patients and families understand their health and feel confident in the path forward.
What Patients Are Saying
Ruth
I believe God created everything and is the great Physician. My friends have received amazing results from Keystone so I’m so glad i finally scheduled appts with Dr Aoki.
After thorough lab work, medical/personal history, he figured out the root cause of many ailments and we have a plan to detox, remediate mold in my home, eat cleaner, change my lifestyle (e.g., exercise regularly, reduce stressors, etc.). I didn’t expect the emotional healing needed that could be contributing to health issues, but had a suspicion something was off so I’ll pursue specific therapy. The goal is homeostasis (my body can heal itself).
Shawna A.
Praise the Lord for this place and the wonderful people that work there. Dr Aoki is a genius and genuinely cares for his patients. I love each and everyone of them. When I came there I couldn't hardly walk from mold and I wasn't sure what else I had going on. I was a sick woman. Dr Aoki discovered I had mold poisoning, mercury poisoning, 2 different types of Lyme Disease, brain damage from a seizure, and MS symptoms. After 2 weeks of treatments I can walk plus do things like sit indian style which I haven't been able to do since I was in my late 20's
Benjie G.
We found Keystone earlier this year and these guys have been amazing to help our Family with our health in a holistic way. Dr. Aoki spends a lot of time with you and cares about your health. The staff is amazing and so friendly and helpful. The atmosphere is so peaceful and relaxing and if you are having any health issues give them a call and go see them. They will make a big difference in your health.
Professional Background & Credentials
Dr. Aoki is a licensed Doctor of Chiropractic in the state of Tennessee and practices under Keystone Total Health in Columbia. He has advanced training in functional medicine, kinesiology, nutrition, biological medicine, and homeopathy, allowing him to approach health challenges from multiple perspectives.
His integrative background enables him to bridge structural care with functional and metabolic support, offering patients a comprehensive and thoughtful model of care.
Keystone Total Health – Columbia, TN
Dr. Aoki practices at Keystone Total Health, a functional medicine clinic dedicated to identifying and addressing the root causes of chronic illness. The Keystone team specializes in complex conditions including inflammation and autoimmunity, Lyme disease, mold illness, pediatric neuroimmune disorders, hormonal imbalances, gut dysfunction, and toxic load.
Keystone Total Health is located at 506 North High Street in Columbia, Tennessee, and serves both local and out-of-town patients seeking advanced functional care.
Schedule an Appointment
If you are struggling with chronic symptoms and are ready for a deeper, root-cause approach to healing, Dr. Koji Aoki and the team at Keystone Total Health are here to help.
Schedule a new patient appointment or book a discovery call to learn whether functional, root-cause care is the right fit for you.