What is a technologist? A credentialed radiologic technologist is responsible for educating patients about their exam and assisting the radiologist with the exam. The technologist may sometimes work directly with the referring physician. The radiologic technologist is also responsible for operating the equipment used during certain examinations. We are proud to say that all of our technologists are credentialed in their chosen fields. Their areas of expertise include: Computerized Tomography - RT RCT Ultrasound - RDMS Mammography - RTRM Bone Densitometry RT-R Diagnostic Imaging - RT-R.