Terence T. Sio, M.D., M.S.

  1. Radiation Oncologist


  1. Phoenix, Arizona



Terence T. Sio, M.D., M.S., is a radiation oncologist and assistant professor of radiation oncology who specializes in both X-ray based and proton radiotherapies. His main focuses are in gastrointestinal, lung, and brain cancers including brain metastasis treatments using stereotactic radiosurgery (SRS). He has a strong interest in ion beam radiotherapies internationally.

  • Central nervous system malignancies
  • Thoracic oncology including lung cancers
  • Gastrointestinal malignancies
  • Genitourinary malignancies
  • Proton beam radiotherapies with particular focus in scanning beam technologies
  • Patient outcome, symptom control, and quality-of-life research
  • Clinical trials
  1. 2016
    Mayo Clinic ScholarProton Therapy Center-Houston, MD Anderson Cancer Center
  2. 2015
    ResidentRadiation Oncology, Programs in Rochester, Mayo School of Graduate Medical Education, Mayo Clinic College of Medicine
  3. 2015
    ResidencyRadiation Oncology Residency Program, Mayo School of Graduate Medical Education, Mayo Clinic College of Medicine
  4. 2011
    Internship - Internal MedicineUniversity of California San Francisco-Fresno
  5. 2010
    MMSc - Medical ScienceBrown University
  6. 2010
    MDBrown University
  7. 2006
    MS - Chemical Engineering Practice (M.S. CEP)Massachusetts Institute of Technology
  8. 2005
    BS - Chemical EngineeringMassachusetts Institute of Technology
  9. 2005
    BS - BiologyMassachusetts Institute of Technology


  1. 2016
    Radiation OncologyAmerican Board of Radiology

Awards and honors

  1. 2015
    Roentgen Resident/Fellow Research AwardDepartment of Radiation Oncology
  2. 2013
    Travel Award Recipient2013 ASTRO Annual Meeting Scientific Session
  3. 2010
    Alpha Omega Alpha Medical SocietyBrown Medical School
  4. 2007
    Foreign Studies Fellowship ProgramInternational Health Institute, Brown University
  5. 2007
    The Luke Charitable Foundation International Travel FellowshipRhode Island Chinese American Association
  6. 2004
    Dr. John E. Burchard '25 Scholar, Department of Humanities, Arts and Social SciencesMassachusetts Institute of Technology

Professional memberships

  1. 2018 - present
    Physician MemberChina Regional Demand Generation (RDG) Team, International Committee, Mayo Clinic Committees
  2. 2017 - present
    MemberSRS/SBRT Service Working Group, Department of Radiation Oncology, Mayo Clinic in Arizona
  3. 2016 - present
    MemberProton Research Development Committee, Department of Radiation Oncology
  4. 2016 - present
    MemberNRG Oncology
  5. 2016 - present
    MemberResearch Executive Committee (ROREC), Department of Radiation Oncology, Mayo Clinic in Arizona
  6. 2016 - present
    MemberClinical Practice Committee (CPC), Department of Radiation Oncology, Mayo Clinic in Arizona
  7. 2016 - present
    MemberAmerican Society of Clinical Oncology
  8. 2016 - present
    MemberInternational Association for the Study of Lung Cancer
  9. 2015 - present
    MemberAlliance for Clinical Trials in Oncology
  10. 2015 - present
    MemberRadiation Oncology Committee, Alliance for Clinical Trials in Oncology
  11. 2011 - present
    MemberRare Cancer Network
  12. 2010 - present
    Lifetime MemberTau Beta Pi Engineering Honor Society
  13. 2010 - present
    MemberAlpha Omega Alpha Honor Medical Society
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