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Departments with related expertise Brain Tumor Program Cancer Care at Mayo Clinic Cardiovascular Medicine Early Onset and Hereditary GI Cancers Program Head and Neck Cancer Center Lung Cancer Program Ocular Oncology Program Pediatric Hematology/Oncology Proton Beam Therapy Program Radiation Oncology Doctors who perform this procedure Edit search filters close Narrow your search By location Phoenix/Scottsdale, AZ Rochester, MN By last name Find a doctor whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D Find a doctor whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F Find a doctor whose last name begins with the letter G G Find a doctor whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I active Find a doctor whose last name begins with the letter J J Find a doctor whose last name begins with the letter K K Find a doctor whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M Find a doctor whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q Find a doctor whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S There are no doctors whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U Find a doctor whose last name begins with the letter V V There are no doctors whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X Find a doctor whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-2 out of 2 doctors available Last Name Initial: J Sarah E. James, M.D., Ph.D. Radiation Oncologist Phoenix, AZ Areas of focus: Brachytherapy, Proton therapy, External beam radiation therapy, Prostate cancer, Bladder cancer, Testicular cancer, Ure...thral cancer, Breast cancer, Endometrial cancer, Cervical cancer Show more areas of focus for Sarah E. James, M.D., Ph.D. Jed E. Johnson, Ph.D. Radiation Oncology Medical Physicist Rochester, MN Areas of focus: Brachytherapy, Proton therapy, Image-guided radiation therapy, Stereotactic body radiotherapy By Mayo Clinic Staff Request an appointment About July 22, 2023 Print Show references Greenberger BA, et al. The role of proton therapy in pediatric malignancies: Recent advances and future directions. Seminars in Oncology. 2020; doi:10.1053/j.seminoncol.2020.02.002. LaRiviere MJ, et al. Proton therapy. Hematology/Oncology Clinics of North America. 2019; doi:10.1016/j.hoc.2019.08.006. Rackwitz T, et al. Clinical applications of proton and carbon ion therapy. Seminars in Oncology. 2019; doi:10.1053/j.seminoncol.2019.07.005. Proton therapy. Radiological Society of North America. https://www.radiologyinfo.org/en/info.cfm?pg=protonthera. Accessed April 15, 2021. Mitin T. Radiation therapy techniques in cancer treatment. https://www.uptodate.com/contents/search. Accessed April 15, 2021. Ofuya M, et al. Systematic review of methodology used in clinical studies evaluating the benefits of proton beam therapy. 2019; doi:10.1016/j.ctro.2019.07.002. Tsang DS. Proton beam therapy for cancer. Canadian Medical Association Journal. 2019; doi: 10.1503/cmaj.190008. Flint PW, et al., eds. Radiotherapy for head and neck cancer: Radiation physics, radiobiology and clinical principles. In: Cummings Otolaryngology: Head & Neck Surgery. 7th ed. Elsevier; 2021. https://www.clinicalkey.com. Accessed April 15, 2021. Frank SJ, et al., eds. Principles of proton beam therapy. In: Proton Therapy. Elsevier; 2021. https://www.clinicalkey.com. Accessed April 15, 2021. Fabiano S, et al. Combined proton-photon treatments — A new approach to proton therapy without a gantry. Radiotherapy and Oncology. 2020; doi:10.1016/j.radonc.2019.12.013. Forsthoefel MK, et al. Early experience of the first single-room gantry mounted active scanning proton therapy system at an integrated cancer center. Frontiers in Oncology. 2020; doi:10.3389/fonc.2020.00861. Foote RL (expert opinion). Mayo Clinic. May 9, 2021. 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