Highest Rated Treatments

  • Neck Pain​
  • Low Back Pain
  • Dealing with low back pain
  • HELP, I'm getting a migraine
  • Sleeping for health

Our Team

Your Health

Our Philosophy

Dr. Brett Mehringer did his undergraduate studies at Indiana State University and completed Chiropractic College in 2000 at Logan in St. Louis. He played basketball for Logan Chiropractic College and runs marathons annually. His expertise has assisted athletes, emergency crews, and their loved ones on a daily basis. He has over 16 years of experience and has operated his Washington clinic since 2003. He is a true expert in the Chiropractic field and very committed to helping all generations live happier and healthier. With his drive and enthusiasm, you will always know that you are the most important person in the room. His commitment to his patients, their families, and our community show his true caring heart for helping people live a lifestyle of wellness.​ 

Dr. Brett is a member of the Missouri State Chiropractic Association.
We believe that chiropractic care is the cornerstone of any comprehensive and holistic health program. When your body works the way nature intended, your spirit soars--and so do you.


Meet Our Doctors at Mehringer Chiropractic

Our Mission Statement

Our goal is to deepen every man, woman and child's understanding of true health and to teach them to have faith in their body's ability to heal and be healthy. We acknowledge the devastating effects nerve pressure can have on the overall health of our patients, our communities , and our world.  Through Chiropractic care, we relieve subluxations and nerve interference in the entire body. We aspire to serve as many people as possible so these masses may realize their full human potential. We encourage our patients to help us by participating in the most important and noble mission of living a wellness lifestyle. 

Dr. Matt Davidson earned a Bachelors of Arts in Business Administration from Thomas More College in Crestview Hills, KY. After working in the business arena for 6 years and beginning an endurance sport career, Dr. Davidson realized his true passion was in helping other athletes reach their full potential. He then began his studies at Logan College of Chiropractic in Chesterfield, MO. While at Logan, Dr. Matt led the Logan Men’s Basketball team, became certified to perform Graston Technique© and was part of a research group studying Dynamic vs. Static Treatment of Lower Extremity Complaints with Graston ® Technique. He trains for and races, triathlons, and running events, basketball, and golf. He has competed in over 165 endurance events ranging from 5K’s to marathons, multi-stage cycling races, sprint triathlons, and completed 10 Ironman Triathlons with an Ironman personal record of 9:38.  He is a member of the Big Shark triathlon team and coaches two youth basketball teams. Dr. Matt was named 2010-2011 Coach of the Year for the Jewish Community Center Basketball program.  Dr. Matt believes combining chiropractic care with exercise, muscle balance, and sound nutrition. He believes hydration is essential to optimal performance both in and out of sports. His pleasant and caring personality makes each patient feel comfortable and his expertise gets them back on the road to a pain free lifestyle.

Everyone in our office, from our chiropractic assistants to our chiropractors, has one goal in mind--to help YOU feel better. When your body isn't in alignment,  your entire outlook on life can be affected. We are here to help.  That's why you'll always be greeted with a smile and leave with an even bigger one.


Dr. Delia Overschmidt received her Doctor of Chiropractic degree and Master’s in Nutrition and Human Performance from Logan College of Chiropractic. She believes in addressing the cause of your symptoms and offers care to bring you to your optimal mental and physical health. Dr. Delia’s whole body systemic approach allows her to design a treatment program specific for your health care goals through chiropractic care and nutritional support. Dr. Delia partners with Standard Process Labs and Metagenics, specializing in nutrition counseling and weight loss.

Dr. Delia received her Bachelor of Science in Environmental Conservation from the University of New Hampshire. She has competed in collegiate softball, downhill skiing, triathlons, and enjoys balancing the mind-body-spirit with her yoga practice. She is dedicated to living a well-balanced, active, and healthy lifestyle. She resides in West County with her husband, John Overschmidt of Washington, MO, with their black lab, Gunnar.

Dr. Delia is a member of the Missouri State Chiropractic Association.


  • Low Back Pain​
  • Dealing with Fatigue
  • Neck Pain
  • Stretching
  • Wellnew Strategies
  • ​Fighting Migraines

Please don't take chances with your health. A wellness plan that's easy to understand and follow through on is key to good health throughout your entire life. Make chiropractic a cornerstone of that plan, and you're on your way to living a life that's active and free from pain.