As the world comes together this week for the first World Radiotherapy Awareness Day, the American Society for Radiation Oncology (ASTRO) and organizations across the cancer community are uniting in federal advocacy to support access to life-saving radiation therapy. In official comments submitted today to Centers for Medicare & Medicaid Services (CMS) Administrator Mehmet Oz, ASTRO urged CMS to make important changes to the proposed 2026 Medicare physician and hospital outpatient payment rules released in July to ensure that radiation therapy services are reimbursed fairly, fostering equal access in communities nationwide.