Wan-In Koo, DO

Zoe Wadsworth, APRN, CPNP, is a board-certified nurse practitioner specializing in pediatrics, where she cares for newborns to age 21. She received her Bachelor of Science degree in nursing from the University of Missouri–Columbia and her Master of Science degree in nursing from Maryville University. Before joining the SSM Health Medical Group, Zoe worked as a pediatric primary care nurse practitioner at SSM Health Cardinal Glennon Children’s Hospital where she treated well child care, acute illness, and chronic conditions. Zoe is committed to providing family-centered education and keeping herself up-to-date on the latest medical studies. Her practice is individualized to each child, caring for them in times of health and illness.

Maryam Naemi, DO, is board certified in family medicine. She received her medical degree from Kirksville College of Osteopathic Medicine and completed her residency at Deaconess Hospital in St. Louis. After completing her residency in 1999, Dr. Naemi began practicing family medicine with SSM Health in St. Charles County. She has over 20 years of experience in treating patients of all ages with acute and chronic illnesses. Dr. Naemi believes in using evidence-based medicine, along with her experience, in helping patients take an active role in optimizing their health and preventing disease by lifestyle changes. She strives to give patients the individualized attention and care they deserve.

Dr. Wiewel is board certified in family medicine. She completed her internship and residency at the University of North Carolina—Chapel Hill after earning her medical degree at Loyola University in Chicago. Dr. Wiewel has been awarded recognition from the National Committee for Quality Assurance (NCQA) Diabetes Physician Recognition Program for meeting national standards for diabetes care. She began practicing with SSM Health Medical Group in O’Fallon in 2006. Dr. Wiewel values the relationships established as a family medicine physician. She has a special medical interest in preventive health care.