Departments and specialties

Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery.

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Displaying 1-10 out of 17 doctors available

Location: Phoenix, AZ

  1. Safia K. Ahmed, M.D.

    Safia K. Ahmed, M.D.

    1. Phoenix, AZ
    Areas of focus:

    Radiation therapy, Brachytherapy, Proton therapy, Stereotactic radiosurgery, Intraoperative radiation therapy, Intensit...y-modulated radiation therapy, Breast cancer, Soft tissue sarcoma, Pediatric central nervous system tumor

  2. Aman Anand, Ph.D.

    Aman Anand, Ph.D.

    1. Radiation Oncology Medical Physicist
    1. Phoenix, AZ
    Areas of focus:

    Radiation therapy, Proton therapy

  3. Sarah E. James, M.D., Ph.D.

    Sarah E. James, M.D., Ph.D.

    1. Radiation Oncologist
    1. Phoenix, AZ
    Areas of focus:

    Radiation therapy, Radiation therapy for breast cancer, Brachytherapy, Proton therapy, External beam radiation therapy,... Proton therapy for prostate cancer, Radiation therapy for prostate cancer, Prostate cancer, Breast cancer, Bladder cancer, Cervical cancer, Endometrial cancer, Testicular cancer, Urethral cancer

  4. Sameer R. Keole, M.D.

    Sameer R. Keole, M.D.

    1. Radiation Oncologist
    1. Phoenix, AZ
    2. Rochester, MN
    Areas of focus:

    Proton therapy, Breast cancer, Meningioma, Acoustic neuroma, Pituitary tumor, Chordoma, Brain tumor, Brain metastasis, ...Glioblastoma, Astrocytoma, Oligodendroglioma, Lymphoma, Neurofibromatosis, Glioma, Ependymoma, Sarcoma, Neurofibroma, Choroid plexus papilloma

  5. Brady S. Laughlin, M.D.

    Brady S. Laughlin, M.D.

    1. Radiation Oncologist
    1. Phoenix, AZ
    Areas of focus:

    Radiation therapy, Total body irradiation, Proton therapy, Stereotactic body radiotherapy, Proton therapy for prostate ...cancer, Radiation therapy for prostate cancer, Stereotactic radiosurgery, Intensity-modulated radiation therapy, Prostate cancer, Bladder cancer, Kidney cancer, Non-Hodgkin lymphoma, Hodgkin lymphoma, Leukemia, Neuroblastoma, Aplastic anemia, Testicular cancer, Wilms' tumor, Nasopharyngeal carcinoma, Retinoblastoma, Pediatric central nervous system tumor

  6. Wei Liu, Ph.D.

    Wei Liu, Ph.D.

    1. Radiation Oncology Medical Physicist
    1. Phoenix, AZ
    Areas of focus:

    Proton therapy, Image-guided radiation therapy, Pancreatic cancer, Head and neck cancer, Lung cancer, Brain cancer, Eso...phageal cancer

  7. Lisa A. McGee, M.D.

    Lisa A. McGee, M.D.

    1. Radiation Oncologist
    1. Phoenix, AZ
    Areas of focus:

    Radiation therapy, Radiation therapy for breast cancer, Proton therapy, Breast cancer, Head and neck cancer

  8. Samir H. Patel, M.D.

    Samir H. Patel, M.D.

    1. Radiation Oncologist
    1. Phoenix, AZ
    Areas of focus:

    Radiation therapy, Proton therapy, Stereotactic body radiotherapy, Intensity-modulated radiation therapy, Oral and thro...at cancer, Head and neck cancer, Skin cancer, Oropharyngeal cancer, Thyroid cancer, Laryngeal cancer, Hypopharyngeal cancer, Esthesioneuroblastoma, Nasal and paranasal tumors, Chondrosarcoma, Nasopharyngeal carcinoma, Salivary gland cancer, Radiation injury

  9. Daniel G. Robertson, Ph.D.

    Daniel G. Robertson, Ph.D.

    1. Radiation Oncology Medical Physicist
    1. Phoenix, AZ
    Areas of focus:

    Proton therapy

  10. William G. Rule, M.D.

    William G. Rule, M.D.

    1. Radiation Oncologist
    1. Phoenix, AZ
    Areas of focus:

    Radiation therapy, Proton therapy, Stereotactic body radiotherapy, Intraoperative radiation therapy, Intensity-modulate...d radiation therapy, Colon cancer, Liver cancer, Pancreatic cancer, Neuroendocrine tumor, Multiple myeloma, Rectal cancer, Stomach cancer, Cholangiocarcinoma, Esophageal cancer, Leukemia, Lymphoma, Primary mediastinal large B-cell lymphoma, Anal cancer, Pancreatic neuroendocrine tumor, Small bowel cancer

Research

Mayo Clinic doctors and researchers are actively studying and refining proton therapy techniques. They conduct clinical trials to improve treatment outcomes and understand the benefits of proton therapy for various cancers.

Cancer research is conducted in coordination with Mayo Clinic Comprehensive Cancer Center. Mayo Clinic Comprehensive Cancer Center receives funding from the National Cancer Institute and is designated as a comprehensive cancer center. This designation recognizes the institution's scientific excellence and multidisciplinary resources focused on cancer prevention, diagnosis and treatment.

Publications

See a list of publications about proton therapy by Mayo Clinic doctors on PubMed, a service of the National Library of Medicine.

Research Profiles

April 29, 2026
  1. Frank SJ, et al., eds. Principles of proton beam therapy. In: Proton Therapy. Elsevier; 2021. https://www.clinicalkey.com. Accessed June 3, 2025.
  2. Mitin T. Radiation therapy techniques in cancer treatment. https://www.uptodate.com/contents/search. Accessed June 3, 2025.
  3. Dmochowski RR, et al., eds. Radiation therapy for prostate cancer. In: Campbell-Walsh-Wein Urology. 13th ed. Elsevier; 2026. https://www.clinicalkey.com. Accessed June 3, 2025.
  4. Proton therapy. RadiologyInfo.org. https://www.radiologyinfo.org/en/info.cfm?pg=protonthera. Accessed June 3, 2025.
  5. DiBase SJ, et al. External beam radiation therapy for localized prostate cancer. https://www.uptodate.com/contents/search. Accessed June 3, 2025.
  6. Proton beam therapy. RT Answers. https://www.rtanswers.org/cancer-types/brain-tumors/treatment-types/proton-beam-therapy. Accessed June 3, 2025.
  7. What to expect. RT Answers. https://www.rtanswers.org/what-is-radiation-therapy/what-to-expect. Accessed June 3, 2025.
  8. External beam radiation therapy for cancer. National Cancer Institute. https://www.cancer.gov/about-cancer/treatment/types/radiation-therapy/external-beam. Accessed June 3, 2025.
  9. Find a proton therapy center near you. The National Association for Proton Therapy. https://proton-therapy.org/findacenter. Accessed June 3, 2025.
  10. Salem PP, et al. Proton radiation therapy: A systematic review of treatment-related side effects and toxicities. International Journal of Molecular Sciences. 2024; doi:10.3390/ijms252010969.
  11. Yang JT, et al. Randomized phase II trial of proton craniospinal irradiation versus photon involved-field radiotherapy for patients with solid tumor leptomeningeal metastasis. Journal of Clinical Oncology. 2022; doi:10.1200/JCO.22.01148.
  12. What is proton therapy? The National Association for Proton Therapy. https://proton-therapy.org/faq. Accessed March 25, 2026.
  13. Health Education & Content Services. An introduction to radiation treatment. Mayo Clinic; 2026.
  14. Medical review (expert opinion). Mayo Clinic. April 4, 2026.