Radiation Therapist, Radiation Experience: 2 years Licenses: RADTHER-DC Certifications: T-American Registry of Radiologic Technologists SSN Required DOB Required Registration with the American Registry of Radiologic Technologists (ARRT). At AMN Healthcare, we strive to be recognized as the most trusted, innovative, and influential force in helping healthcare organizations provide quality patient care that continually evolves to make healthcare more human, more effective, and more achievable.