Shelley Health Center
Shelley Health Center has been proudly serving the O’Fallon, MO and surrounding communities for over 20 years! Our providers specialize in patient care instead of high pressure sales. Our team is dedicated to providing personalized care for patients of all ages. We utilize a combination of chiropractic, assisted stretching, dry needling, personal training, infrared sauna sessions, and more to provide pain relief and overall well-being for our patients.
Our Services
Chiropractic Care
Dry Needling
Infrared Sauna
Stretching Services
Meet Our Providers
Jessica Shelley Riedisser, BS, DC, MDNC
Dr. Jessica Riedisser (formerly Shelley) is a 2002 graduate of Cleveland Chiropractic University of Kansas City. Practicing in O’Fallon, Missouri since 2003, Dr. Riedisser specializes in several different chiropractic techniques including Full Spine Specific, Diversified, Activator, and Thompson. Dr. Riedisser also has her Masters in Dry Needling and is a TPI Certified Physician. She specializes in patients of all ages and all levels of fitness. Outside of work, Dr. Riedisser enjoys spending time with her husband, her boys, and her dogs. She enjoys being active outdoors as much as possible (hiking, cycling, anything on the lake) and traveling.
Michelle Dunajcik, BS, DC
Dr. Michelle Dunajcik (Dr. D) is a 2003 graduate of Cleveland Chiropractic University of Kansas City. She and Dr. Riedisser studied the same techniques together, allowing Dr. Dunajcik to also provide a wide range of treatments to patients of all ages (including Full Spine Specific, Diversified, Activator, Thompson, and SOT). Dr. Dunajcik is also pediatric and maternity certified, including Webster Technique, from the ICPA. A mother of 3 boys, Dr. Dunajcik and her husband are active in many things, with a passion for the Boy Scouts of America.
Taryn Lewis, DC, MS
Dr. Taryn Lewis, a 2016 graduate of Logan Chiropractic College, is originally from Cincinnati, Ohio. She practiced there until 2024, when new adventures brought her back to Missouri. She treats patients of all ages, using a variety of techniques including Diversified, Thompson, and Activator—that can be tailored to each individual’s needs. She can be gentle or tough, as needed!
A proud mom of Levi and Victoria, she and her fiancé, Corey, love exploring new places. Dr. Lewis has visited some incredible destinations—ask her about her skydiving and scuba diving journeys! With
a strong sports background in running, volleyball, and softball, she has a passion for helping athletes reach their full potential. She knew she wanted to be a chiropractor since she was 12 years old, and seeing her patients thrive makes her career more rewarding than she ever imagined.
Mackenzi Sifuentes, Strength and Flexibility Coach
Mackenzi is passionate about helping people move, feel, and perform at their best. A former collegiate volleyball player at Lindenwood University, she experienced firsthand the value of taking care of your body—both on and off the court. She graduated with a degree in Exercise Science and minors in Nutrition and Health & Wellness. Mackenzi is a certified Personal Trainer with additional certification in Nutrition. Her background in athletics, combined with strong communication and a supportive coaching style, makes her a dynamic guide for clients of all levels. Whether you’re working on strength, mobility, or overall fitness, Mackenzi is dedicated to helping you reach your goals with confidence.
Contact Us Today
Email Us
info@shelleyhealthcenter.com
Call/Text Us
(636) 240-8989
Fax
(636) 240-6889
Office
1159 Bryan Road
O’Fallon, Missouri 63366