

Dr. Eric Lundgren
Chiropractor
Dr. Eric Lundgren has been a licensed Chiropractor in Rock Island, IL since 1998. Dr. Lundgren graduated from Augustana College with Bachelor of Arts degrees in Mathematics and Political Science. After graduating, Dr. Lundgren spent several years in the business world before realizing that being a Chiropractor was a part of his purpose in life. He was working for John Deere Insurance when he determined that Palmer College of Chiropractic was where he should be preparing for his future.
Dr. Lundgren was first exposed to Chiropractic care as a young teenager with injuries from baseball and basketball. He learned at a young age the benefits of Chiropractic care. Today, Dr. Lundgren’s mission is to improve the quality of life for all individuals in the Quad Cities, providing optimum Chiropractic care to patients of all ages.
Aside from caring for his patients, Dr. Lundgren enjoys spending time with his wife, Charla, and their sons, Brogdon and Barrett. They enjoy playing a variety of sports, including basketball, golf, baseball, and football. Depending on the season, they are cheering for the St. Louis Cardinals, the Illini, or the Tennessee Vols. The Lundgrens are also committed to supporting a variety of schools, organizations, and philanthropies in the Quad Cities. Most importantly, the Lundgren family is committed to their church family at Sycamore Reformed Baptist, where they continue to learn and grow in God’s word.
Dr. Lundgren uses a “whole person approach” when taking care of his patients. He does this by combining the best of hands-on-techniques with state of the art physiotherapy and physical rehabilitation. He also provides the best natural vitamins and mineral supplements on the market today. Dr. Lundgren is able to help you accelerate and maintain your journey to excellent health.


Dr. Stegmaier
Dr. Stegmaier has been practicing chiropractic since 2015 in Rock Island, Illinois. He graduated from Palmer College of Chiropractic in 2015 with both a Bachelor’s of Science degree and Doctorate of Chiropractic. Before Palmer, he attended Kishwaukee College in Dekalb, Illinois where he played collegiate level soccer. He continued his love for the game and played soccer at Palmer while obtaining his degrees.
Dr. Stegmaier has an older brother who studied chiropractic and it inspired him to pursue the career path of healing others. He enjoys seeing the power of chiropractic care everyday with his patients. The best part about his day is observing his patients be able to surpass physical goals they once thought were unattainable.
When Dr. Stegmaier is not in the office, he enjoys spending his time with his wife, Adrianna, and their daughters Lola and Goldie. He is an avid Minnesota Vikings football fan and enjoys spending his Sundays watching the game as a family. In the warmer months, he enjoys playing a round of golf and participates in a recreational sand volleyball league. Spending time enjoying the things he loves with his family brings him lots of joy.
Dr. Stegmaier is a continuous learner. He studies the most recent, best research-based practices so he can continue to provide his patients with the best techniques to help them become the best version of themselves. He also takes great pride in getting to know each of his patients on an individual level as he understands the power of relationships make a great impact on one’s well-being. Dr. Stegmaier is able to provide excellent chiropractic care to help his patients reach their personal health goals.

Dr. Theresa Illingsworth
Clinic Director
Dr. Theresa Illingsworth is the Clinic Director of Lundgren Family Chiropractic, bringing over 25 years of experience in chiropractic care and holistic health. Before stepping into this leadership role, Dr. Theresa successfully ran a solo practice for 14 years, earning a reputation for personalized, patient-centered care. With a deep commitment to improving patients’ well-being, Dr. Theresa combines expertise in chiropractic techniques with a passion for empowering individuals to achieve optimal health. As Clinic Director, she oversees a dynamic team, fostering a collaborative approach to wellness and ensuring the highest standards of care for every patient.

Dr. Kilbo Yun
Associate Dr.
Dr. Kilbo Yun, now practicing at Lundgren Family Chiropractic, in their Quad Cities location in Rock Island, IL is 6,500 miles from his home in Seoul, South Korea, but with his wife and daughter by his side as he pursues his dream of being a Chiropractor, he’s soaking in every step of his journey!
Dr. Yun worked as a personal trainer for 12 years and managed his own gym for six of those years, always focused his work on rehabilitation with the goal to help people who wanted to improve their pain using exercise.
“That is when I began to believe in the mind-body connection and the healing power of proper chiropractic care,” said Kilbo.
“D.D. Palmer’s philosophy really spoke to me. He taught that the causes of subluxation are thought, trauma and toxins. I strongly agreed with his idea that subluxation takes place by way of our thoughts. After I learned his philosophy, I started to explore more information about the chiropractic field.”
With Palmer graduates practicing all over the world, Dr. Yun found himself influenced by their work.
“Some of the professors I had in my undergraduate studies in South Korea were Palmer graduates, and they drove me to want to study in the U.S. For me, Palmer’s strong history and wonderful professors were all I needed to know in order to move forward.”
Yet making the decision to study abroad wasn’t an easy one for Dr. Yun and his family.
“When I decided to study abroad it was not easy because I was managing my own gym, and my daughter was just two years old. But my wife and I had deep conversations, and we decided that we could study abroad together. This is because we believed that family always has to be together, and when we are together, we can get through anything.”
Dr. Yun loves helping all people of all ages by treating the whole body with the best chiropractic care. He is an awesome addition to the Team of Doctors at Lundgren Family Chiropractic.