Meet Our Board Members

A lifelong Montanan, Dr.Woerner graduated from Laurel High School and earned an undergraduate degree in agriculture from Montana State University. He completed his medical education at Kirksville College of Osteopathic Medicine in Kirksville, Missouri, followed by a Family Medicine residency at Phoenix Baptist Hospital in Arizona. After completing his training, he returned to Montana as quickly as possible to serve his home community.

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Dr. Woerner has practiced at Laurel Medical Center for the past 15 years and feels deeply grateful for the opportunity to care for patients in his hometown. He has been an active member of the Montana Osteopathic Medical Association and the Northwest Osteopathic Foundation since 2020.

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Outside of medicine, he enjoys hunting, fly fishing, horseback riding, camping, and spending time outdoors. He lives on a small farm near Laurel with his wife and a lively collection of animals—including dogs, horses, cats, cows, and chickens—reflecting his deep love for animals and rural life.

Born and raised in Big Sky Country, Wynde Cheek, D.O., FACN is a board-certified neurologist based in Helena, Montana. She earned degrees from Carroll College and Montana State University before completing medical school at Des Moines University in Iowa. Dr. Cheek traveled extensively during her clinical rotations, gaining broad experience before completing a traditional medical internship and neurology residency in Dayton, Ohio.

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Eager to return home, she came back to Montana to practice near her extended family and fully embrace all things Montana. She is a business owner and a physician leader, serving as past president of the American College of Neuropsychiatrists and as Montana’s first graduate of the Osteopathic Health Policy Fellowship, Class of 2023. Dr. Cheek has been an active member of the Montana Osteopathic Medical Association since 2020.

Don Grewell, D.O., FAAFP is a board-certified family medicine physician with over 30 years of clinical and academic experience. He practiced from 1988 to 2021, including eight years in private practice and 25 years with Billings Clinic. He has served as faculty with the Montana Family Medicine Residency since 2013 and previously led the program’s osteopathic education and recognition pathway.

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A retired Army National Guard Lieutenant Colonel, Dr. Grewell served in multiple leadership roles, including senior flight surgeon and medical company commander. He has been actively involved with the Montana Osteopathic Medical Association for more than 35 years, serving as Executive Director for the past 14 years, and has represented Montana in the American Osteopathic Association House of Delegates.

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Dr. Grewell and his wife, Jackie, have been happily married for 36 years and have two grown sons.

A Montana native from Whitehall, MT, Dr.Sizemore is a board-certified family medicine physician and core faculty member with the Montana Family Medicine Residency in Billings. She earned her Doctor of Osteopathic Medicine degree from Rocky Vista University College of Osteopathic Medicine–Colorado, where she completed the Rural and Wilderness Medicine Honors Track, and completed residency training at the Montana Family Medicine Residency, serving as Chief Resident.

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In her current roles as Director of Osteopathic Education and Assistant Program Director for Faculty Development, she is passionate about resident education, provider wellness, inpatient medicine, and improving access to care. Clinically, she practices full-spectrum family medicine at RiverStone Health, including prenatal care and procedures.

Outside of medicine, she enjoys hiking, travel, reading, baking, and—most importantly—spending time with her yellow puppy, Otis.

Logan Health, Kalispell, MT

Stephanie Zeszutek, DO, FACOG, RPh. Assistant Clinical Dean, Associate Professor, Touro College of Osteopathic Medicine

Montana Family Medicine Residency

Touro College of Osteopathic Medicine - Great Falls

Rocky Vista University Montana College of Osteopathic Medicine, Billings