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.

Doctors who perform this procedure

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Displaying 11-20 out of 52 doctors available

  1. May Elbanna, M.B., B.Ch., Ph.D.

    May Elbanna, M.B., B.Ch., Ph.D.

    1. Radiation Oncologist
    1. Rochester, MN
    Areas of focus:

    Radiation therapy, Radiation therapy for breast cancer, Proton therapy, Stereotactic body radiotherapy, Proton therapy ...for prostate cancer, Radiation therapy for prostate cancer, Intensity-modulated radiation therapy, 3D conformal radiotherapy, Liver cancer, Prostate cancer, Breast cancer, Bladder cancer, Pancreatic cancer, Kidney cancer, Rectal cancer, Lung cancer, Esophageal cancer, Bone metastasis

  2. Allison E. Garda, M.D.

    Allison E. Garda, M.D.

    1. Radiation Oncologist
    1. Rochester, MN
    Areas of focus:

    Radiation therapy, Brachytherapy, Proton therapy, External beam radiation therapy, Intraoperative radiation therapy, Ra...diation therapy for prostate cancer, Intensity-modulated radiation therapy, Breast cancer, Cervical cancer, Ovarian cancer, Endometrial cancer, Gynecologic cancer, Vulvar cancer, Vaginal cancer, Uterine sarcoma

  3. Fantine N. Giap, M.D.

    Fantine N. Giap, M.D.

    1. Radiation Oncologist
    1. Jacksonville, FL
    Areas of focus:

    Brachytherapy, Proton therapy, Stereotactic body radiotherapy, Image-guided radiation therapy, Cervical cancer, Endomet...rial cancer, Chordoma, Gynecologic cancer, Sarcoma, Chondrosarcoma, Vulvar cancer, Vaginal cancer

  4. Michael G. Haddock, M.D.

    Michael G. Haddock, M.D.

    1. Radiation Oncologist
    1. Rochester, MN
    Areas of focus:

    Brachytherapy, Proton therapy, External beam radiation therapy, Intraoperative radiation therapy, Intensity-modulated r...adiation therapy, Colon cancer, Liver cancer, Cervical cancer, Pancreatic cancer, Rectal cancer, Ovarian cancer, Endometrial cancer, Soft tissue sarcoma, Stomach cancer, Cholangiocarcinoma, Esophageal cancer, Ampullary cancer, Hilar cholangiocarcinoma, Sarcoma, Chondrosarcoma, Bone cancer, Anal cancer, Vulvar cancer, Vaginal cancer, Ewing sarcoma, Rhabdomyosarcoma, Leiomyosarcoma, Stage 4 colorectal cancer, Rectal melanoma, Duodenal cancer, Small bowel cancer

  5. Chris L. Hallemeier, M.D.

    Chris L. Hallemeier, M.D.

    1. Radiation Oncologist
    1. Rochester, MN
    Areas of focus:

    Proton therapy, Stereotactic body radiotherapy, Intensity-modulated radiation therapy, 3D conformal radiotherapy, Colon... cancer, Liver cancer, Pancreatic cancer, Rectal cancer, Stomach cancer, Esophageal cancer, Anal cancer

  6. Brad S. Hoppe, M.D., M.P.H.

    Brad S. Hoppe, M.D., M.P.H.

    1. Radiation Oncologist
    1. Jacksonville, FL
    Areas of focus:

    Radiation therapy, Proton therapy, Proton therapy for prostate cancer, Radiation therapy for prostate cancer, Intensity...-modulated radiation therapy, Prostate cancer, Pancreatic cancer, Lung cancer, Esophageal cancer, Hodgkin lymphoma, Lymphoma, Thymic tumor

  7. 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

  8. Jed E. Johnson, Ph.D.

    Jed E. Johnson, Ph.D.

    1. Radiation Oncology Medical Physicist
    1. Rochester, MN
    Areas of focus:

    Brachytherapy, Proton therapy, Stereotactic body radiotherapy, Image-guided radiation therapy

  9. 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

  10. Guru G. Kowlgi, M.B.B.S., M.S.

    Guru G. Kowlgi, M.B.B.S., M.S.

    1. Cardiologist
    2. Cardiac Electrophysiologist
    1. Rochester, MN
    Areas of focus:

    Pacemaker insertion, Radiofrequency ablation, Cardiac resynchronization device insertion, Proton therapy, Atrial fibril...lation ablation, Ventricular tachycardia ablation, SVT ablation, Atrial flutter ablation, Epicardial ablation, Pacemaker battery replacement, Atrial fibrillation, Supraventricular tachycardia, Atrial flutter, AV nodal reentry tachycardia, Atrial tachycardia, Premature ventricular contractions, Ventricular tachycardia, Wolff-Parkinson-White syndrome, Ventricular fibrillation, Bradycardia, Heart palpitations, Conduction system disease

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.