Dr. Graybill is board-certified in radiation oncology by the American Board of Radiology. She received her medical degree from Pritzker School of Medicine at the University of Chicago in Illinois. She was trained in radiation oncology at Rush Presbyterian St. Luke's Hospital in Chicago. Dr. Graybill is an MD Anderson Cancer Network certified cancer physician. Dr. Graybill has a special interest in treating prostate and breast cancer. She started the prostate seed program in Anderson, Indiana. She also has expertise in treating prostate cancer with high dose rate (HDR) brachytherapy. Dr. Graybill was also one of the first physicians to bring MammoSite brachytherapy, partial breast irradiation, to Indiana.