| 2024 | Breann Bowar, MD | Radiation Oncologist, University of Nebraska Medical Center, Omaha, Nebraska |
| 2024 | Qateeb Khan, MD | Assistant Professor, University of Nebraska Medical Center, Omaha, Nebraska |
| 2023 | Jordan Gainey, MD | Radiation Oncologist, Palmetto Radiation Oncology, Florence, South Carolina |
| 2023 | Calvin Lewis, MD, PhD | Radiation Oncologist, Colorado Urology Prostate Cancer Center, Greenwood Village, Colorado |
| 2023 | Jonathan Van Wickle, MD | Radiation Oncologist, Coastal Radiation Oncology, Mission Hope Cancer Center, Santa Maria, California |
| 2022 | Quentin Adams, MD | Radiation Oncologist, Pineville Radiation Therapy Center, Charlotte, North Carolina |
| 2022 | Cameron Callaghan, MD, MPH | Radiation Oncologist, Mayo Clinic, Rochester, Minnesota |
| 2020 | Steven Seyedin, MD | Assistant Clinical Professor, University of California, Irvine-Chao Family Comprehensive Cancer Center, Orange, California |
| 2020 | Addison Willett, MD, JD | Radiation Oncologist, Mobile Infirmary Cancer Center, Mobile, Alabama |
| 2019 | Michael Marquardt, MD, MPH | Radiation Oncologist, Mercy Medical Hall-Perrine Cancer Center, Cedar Rapids, Iowa |
| 2019 | Imran Mohiuddin, MD, PhD | Radiation Oncologist, AdventHealth, Orlando, Florida |
| 2019 | Jessica Parkhurst, MD | Radiation Oncologist, Helen G. Nassif Community Cancer Center, Cedar Rapids, Iowa |
| 2018 | Kristin Plichta, MD, PhD | Assistant Professor, University of Iowa Health Care, Department of Radiation Oncology, Iowa City, Iowa |
| 2018 | Amir Zahra, DO | Radiation Oncologist, Nebraska Cancer Specialists, Omaha, Nebraska |
| 2016 | Darrion Mitchell MD, PhD | Assistant Professor, The Ohio State University Wexner Medical Center, Department of Radiation Oncology, Columbus, Ohio |
| 2016 | Sagar Patel, MD | Radiation Oncologist, Cape Radiation Oncology, Cape Girardeau, Missouri |
| 2015 | Andrew Hoover, MD | Associate Professor, University of Kansas Medical Center, Department of Radiation Oncology, Kansas City, Kansas |
| 2015 | Hualei Li, MD, PhD | Radiation Oncologist, Indiana University Health, Martinsville, Indiana |
| 2014 | Ann Morris, MD | Radiation Oncologist, University of Kansas Cancer Center, Overland Park, Kansas |
| 2014 | Arshin Sheybani, MD | Radiation Oncologist, John Stoddard Cancer Center, Des Moines, Iowa |
| 2013 | Bryan Allen, MD, PhD | Associate Professor, University of Iowa Health Care, Department of Radiation Oncology, Iowa City, Iowa |
| 2012 | Charles Murphy, MD | Clinical Associate Professor, USD Sanford School of Medicine, Avera Radiation Oncology, Sioux Falls, South Dakota |
| 2012 | Bill Rockey, MD | Associate Professor, University of Iowa Health Care, Department of Radiation Oncology, Iowa City, Iowa |
| 2011 | Joni Buechler-Price, MD | Radiation Oncologist, Prairie Lakes Healthcare System, Watertown, South Dakota |
| 2011 | Wenqing Sun, MD | Associate Professor, University of Iowa Health Care, Department of Radiation Oncology, Iowa City, Iowa |
| 2010 | Samuel Andrews, MD | Radiation Oncologist, University of Iowa Health Care, Iowa City, Iowa |
| 2010 | Anna Olson, MD | Radiation Oncologist, Mayo Clinic Health System, La Crosse, Wisconsin |
| 2009 | Casey Duncan, MD | Radiation Oncologist, Cancer Care Specialists of Illinois, Effingham, Illinois |
| 2008 | David Mattson, MD, PhD | Associate Professor, Department of Radiation Medicine and Director, GI & GYN Radiation Oncology, Roswell Park Cancer Center Institute, State University of New York, Buffalo, New York |
| 2007 | Joel Simmons, MD | Radiation Oncologist, Kettering Cancer Care, Kettering, Ohio |