Kay Theyerl MD

Kay Theyerl, MD, FACP, MS, a founding member of Refine MD, is a board certified Internal Medicine Physician, who works with patients to prevent and treat chronic disease. She is passionate about teaching her patients to maximize their health by incorporating healthy lifestyle and other integrative modalities into her practice. Aesthetic Medicine is the perfect complement to her holistic approach to patients - it empowers people to look and feel their best- something she finds incredibly rewarding!

Dr. Theyerl earned her bachelor’s degree in biology from the University of Wisconsin-La Crosse and a master’s degree in cardiovascular physiology from George Williams College. After a career spanning 15 years, she earned her medical degree from The Medical College of Wisconsin and completed her residency in Internal Medicine at Gundersen Lutheran. She has since earned certification by the American Board of Integrative Holistic Medicine, and fellowship in the American College of Physicians. She and her partners in Refine MD have received aesthetic training from some of the top trainers in the country and they participate in ongoing training several times yearly.

Dr. Theyerl has been with ThedaCare since 2004 as a practicing Internist and more recently as the Medical Director for Lifestyle Medicine.

Dr. “Kay” is a native of Appleton having returned here after completing her medical training. She loves spending time outdoors with her fiance’, Tom, or relaxing with family and friends.

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