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Radiation Oncology

Department of Radiation Oncology
979 East 3rd Street
Suite G-15
Chattanooga, TN 37403

Erlanger East Radiation Oncology
Erlanger East Hospital, Building C
Suite 100
Chattanooga, TN 37421

Appointments: 423-778-9506


Radiation therapy, or radiotherapy, is one of the most common cancer treatments. In fact, the technique—using focused radiation to kill cancer cells—has been around for more than a century. But a lot has changed in 100 years. Today, technological advances in imaging, beam shaping, and robotics enable skilled radiation oncologists to target tumors with unprecedented precision—and far less damage to surrounding tissue.

Every cancer case is different. Radiation therapy may be the only treatment you need, or it may be delivered in careful coordination with other cancer therapies such as chemotherapy, surgery or immunotherapy. Our team will help you determine the best course of treatment.

Why Choose Erlanger Radiation Therapy?

As part of Erlanger’s full-continuum of cancer care, Erlanger Radiation Therapy offers a comprehensive combination of resources to help you:

  • A Multi-Specialty Team of Radiation Specialists – Our experienced, highly-skilled team includes radiation oncologists, oncology nurses, nurse navigators, radiation physicists, radiation therapist, and medical dosimetrists.
  • The Latest Treatment Technologies – Our team is equipped with the most advanced radiotherapy technology available, including the region’s only CyberKnife robotic delivery system.
  • Compassionate, Patient-Centered Care – We offer a full spectrum of support resources to help patients and family members navigate the physical, emotional, and nutritional challenges of cancer.
  • Multidisciplinary Tumor Boards – To help ensure the best path of treatment, each case is reviewed by a multi-disciplinary Tumor Board that includes a physician from each of our oncology specializations – radiation therapy, medical oncology, surgery and pathology.

Our Radiation Oncologists

Ryan Cleary, MD
Ryan Cleary, MD
, Medical Director for Radiation Oncology