Dr. Eric D. Ehler is an Associate Professor in the Department of Radiation Oncology at the University of Minnesota Medical School, where he also serves as Director of the CAMPEP-accredited Therapy Medical Physics Residency Program. He earned his Ph.D. in Medical Physics from the University of Wisconsin–Madison and completed his residency at the University of Minnesota. A board-certified medical physicist, Dr. Ehler has contributed extensively to research in radiation therapy, including advancements in 3D printing applications, image-guided radiation therapy, and pediatric total body irradiation. He has published widely in peer-reviewed journals, delivered numerous national presentations, and remains an active member of professional organizations such as AAPM, ASTRO, and the Children’s Oncology Group.