Radiation Oncology

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A patient's individualized cancer treatment plan may include radiation therapy. In this treatment, high-energy x-rays, electrons, or other sources of radiation are used to destroy cancer cells.

Treatment with radiation is provided by a team of radiation oncologists, radiation therapists, dosimetrists and physicists. Our highly trained and experienced radiation therapy team works closely with medical oncologists, surgeons and specialists from other disciplines to provide the best, comprehensive cancer care possible.

Grand Valley Oncology offers two specialized forms of external beam radiation therapy:

Intensity Modulated Radiation Therapy (IMRT)
  • IMRT optimizes the dose and beam arrangement to precisely treat a tumor of complex shape or location with minimal radiation to surrounding tissue.
Stereotactic Radiosurgery (SRS) and Stereotactic Ablative Radiotherapy (SABR)
  • SRS and SABR use three-dimensional images and precise patient positioning to direct a large dose of radiation to a small area.

Our advanced radiation equipment allows us to target treatment of tumors with remarkable precision and thereby spare healthy surrounding tissue – maximizing cures while minimizing side effects.

Meet Our Providers:


Gayle Miller, M.D.

Radiation Oncology

J. Ryan Bagley, M.D.

Radiation Oncology