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Lake Regional Welcomes Kristen Theobald-Hazel, D.O., to Osage Beach

Friday, October 1, 2021
Kristen Theobald-Hazel, D.O. Kristen Theobald-Hazel, D.O.

Lake Regional Health System announces Kristen Theobald-Hazel, D.O., has rejoined Lake Regional Health System. Dr. Theobald-Hazel is a board certified pediatrician who will see children of all ages at Lake Regional Clinic – Osage Beach.

“We are pleased to have Dr. Theobald-Hazel on our team,” said Rebecca Harris, Osage Beach clinic manager. “She is a personable and knowledgeable provider, and our community will benefit from her vast experience in providing care to pediatric patients.”

Dr. Theobald-Hazel provides well visits and care for general pediatric illnesses and concerns. She has a special interest in diagnosing autism spectrum disorders in toddlers and in managing autism in children of all ages, as well as in managing childhood obesity, ADHD and asthma.

“I have extensive experience in the evaluation, diagnosis and treatment of toddlers from 14 months to 48 months with a concern of autism and other neurodevelopmental disorders,” Dr. Theobald-Hazel said. “I also have experience in the care of all children who have been diagnosed with an autism spectrum disorder and other developmental disorders.”

Dr. Theobald-Hazel earned her Doctor of Osteopathic Medicine from Kirksville College of Osteopathic Medicine and completed a three-year pediatric residency at University of Missouri Health Care’s Children’s Hospital in Columbia. She finds it rewarding to watch her patients achieve milestones they have worked hard to accomplish.

“I include my patients in their care no matter their age or development because of course they should have a say in their health,” Dr. Theobald-Hazel said. “My families know that I am here for them to answer their questions and care for their children. I walk this path with them, and we make decisions together.”

Dr. Theobald-Hazel lives in Osage Beach with her husband, Matt, and their middle-school son. The couple also share two grown children. In her free time, she enjoys visiting local restaurants and spending time with her family, including cheering on her son who plays football and husband who races off-road vehicles.

Along with Dr. Theobald-Hazel, Lake Regional’s primary care team in Osage Beach includes two pediatricians: Kimber Guinn, D.O., and Trent K. Russell, M.D., MHA, FAAP, and three family medicine physicians: Heidi Calipjo, M.D.; Mark Jones, D.O.; and Mark Shen, D.O., CMD, HMDC.

To make an appointment with Dr. Theobald-Hazel, call 573.302.3100 or request an appointment online at