Doctors who actually know you. And the team that makes it work.

Dr. Opperman founded Simplicity Health to practice medicine the way he always believed it should be practiced: with time, with attention, and with the freedom to actually help patients reach their goals. His clinical interests center on diabetes, cardiology, and obesity management, though he treats the full range of adult internal medicine and brings particular care to deprescribing unnecessary medications when patients are ready.

He earned his undergraduate degree from the University of Dayton and completed his internal medicine residency at Kettering Medical Center. He has served as clinical teaching faculty for the Kettering Medical Center Internal Medicine Residency program and has held teaching appointments at Wright State University and Ohio University Schools of Medicine. He holds the FACP designation, awarded by the American College of Physicians for excellence in clinical practice and leadership.

Outside the office, Dr. Opperman is a devoted family man, an avid golfer and Dayton Flyers basketball fan, and an active member of his church who frequently volunteers with community outreach.

Dr. Butler is a board-certified internal medicine physician with extensive experience in both primary care and medical education. She specializes in preventive care, chronic disease management, and evidence-based medicine, and brings a strong commitment to patient-centered decision-making to every visit.

Born in Minneapolis, Dr. Butler earned her medical degree from Eastern Virginia Medical School and completed her residency at Kettering Medical Center, where she served as chief resident. She has served as teaching faculty at Wright State University Boonshoft School of Medicine and the Kettering Medical Center Residency program for over a decade, mentoring future physicians. She holds the FACP designation from the American College of Physicians, and has nearly ten publications in respected medical journals.

Outside of medicine, Dr. Butler is an accomplished runner who has completed the Boston Marathon multiple times. She loves traveling internationally (she recently attended the Summer Olympics in Paris) and most of all, she enjoys spending time with her family and supporting her children as they pursue their own paths.

Dr. Wenzell is a board-certified family medicine physician with experience caring for patients of all ages. He provides preventive screening (well-child checks, cancer screening, heart disease prevention) along with chronic disease management for conditions like diabetes, hypertension, and depression. He has a strong interest in shared decision-making and in deprescribing unnecessary medications when the evidence supports it.

Originally from Enon, Ohio, Dr. Wenzell completed his Bachelor of Science at Furman University, earned his medical degree at Wright State University Boonshoft School of Medicine, and finished his residency at Bethesda Family Practice in Cincinnati, where he served as chief resident. He is fluent in Spanish.

Outside of work, he enjoys spending time with his family, playing board games, reading science fiction and medical history, playing piano and French horn, and traveling.

Dr. Marton is a board-certified family medicine physician who provides care for patients of all ages. She focuses on prevention, chronic disease management, and the full spectrum of primary care, with a particular interest in women's health. She views herself as a partner and advocate for her patients, helping them navigate the health care system while creating a space where they feel comfortable asking questions and discussing concerns.

She is passionate about helping patients build healthy, sustainable habits, especially finding physical activities they genuinely enjoy and can maintain. One of her main goals is to help patients improve not just their lifespan, but their health span, so they can stay active, independent, and well as they age.

A native of Loveland, Ohio, Dr. Marton earned her medical degree from the University of Cincinnati and completed her residency at Bethesda Family Residency, where she served as chief resident. She has participated in a medical mission trip to Belize and hopes to continue similar work in the future. Outside of medicine she enjoys hiking, kayaking, tennis, reading, time outdoors, and preparing healthy meals for family and friends.