John Simmons, DO

Guthrie Provider

  • Radiation Oncology
  • Guthrie Corning Hospital
  • Guthrie Cortland Medical Center
  • Guthrie Robert Packer Hospital

Appointments & Contact

Accepting New Patients
Offers Telemedicine Visits
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Telemedicine video visits make it easier to find care at a time and location that is convenient for you. Telemedicine appointments are available for both new patient visits and follow-ups.

For New Patients

Clinical Interests

  • Stereotactic Body Radiation Therapy - SBRT
  • Intensity-Modulated Radiation Therapy - IMRT
  • Image-Guided Radiation Therapy - IGRT
  • Surface Guided Radiation Therapy - SGRT
  • Three Dimensional 3D Conformal Radiation Therapy - 3DCRT



  • West Virginia School of Osteopathic Medicine, Lewisburg, W. Va.
  • Eastern Virginia Medical School, Norfolk, Va. (Radiation Oncology)
  • American Osteopathic Board of Radiology (Radiation Oncology)
  • American Board of Radiology (Radiation Oncology)
  • Member, American Osteopathic Association
  • Member, American Osteopathic College of Radiology