Internal medicine practitioners
Thomas G. Lewis, DO
Thomas Grant Lewis, D.O., has joined the Genesis Center of Surgical Excellence, specializing in general surgery. Dr. Lewis is a graduate of Kentucky College of Osteopathic Medicine, where he earned his doctor of osteopathic medicine degree. He completed a general surgery residency at McLaren Greater Lansing and served as Chief Resident from 2023 to 2024. Dr. Lewis also holds a bachelor of arts in biology with a concentration in cellular and molecular biology from Thomas More College, Crestview Hills, Kentucky. Since 2019, he has been an adjunct professor of surgery at Michigan State University College of Osteopathic Medicine, contributing to the education of future medical professionals. Prior to medical school, Dr. Lewis conducted cancer research at the Wood Hudson Cancer Research Laboratory, where he contributed to breast cancer receptor studies and mentored student researchers in lab techniques and scientific analysis.
