Certified by the American Board of Radiology in Radiation Oncology since 1988, Dr. Donald B. Fuller, MD treats cancer patients from his Bankers Hill office on First Avenue in downtown San Diego. His Genesis Healthcare Partners practice operates as an affiliate of CyberKnife Centers of San Diego, delivering robotic stereotactic body radiotherapy through a referral network that connects upstream with primary care at First Avenue Medical Center. An MD from the University of Washington School of Medicine (1984) and national principal investigator status on a multi-institutional prostate CyberKnife clinical trial position this practice at the intersection of clinical oncology and prospective research. Radiation dose-escalation protocols for prostate, lung, and gynecologic malignancies use IMRT and SBRT delivery, with specialty compounding for supportive care medications handled through University Compounding Pharmacy in Bankers Hill. Technicians utilize the CyberKnife robotic radiosurgery platform for sub-millimeter tumor-tracking SBRT, delivering HDR-brachytherapy-equivalent dose distributions via his published CT-ultrasound fusion technique.