Tim Showalter, MD, MPH, is a radiation oncologist and cancer researcher who serves as Chief Medical Officer at ArteraAI. In this role, he provides scientific and clinical leadership for product development and evidence generation needed to bring ArteraAI biomarkers into clinical use. Tim maintains a part-time clinical practice at the University of Virginia as Professor of Radiation Oncology. During his 13 years in academia, Tim led clinical programs in prostate, breast and gynecologic cancers, published over 165 peer-reviewed manuscript, and oversaw the design and conduct of clinical trials and research programs funded by the National Cancer Institute. He is experienced in outcomes research and cost-effectiveness analyses and was the founder of a medical device company funded by federal grants.