Located in Ibusuki City, Kagoshima Prefecture, Medipolis International Proton Therapy Center is a specialized radiation oncology facility focusing on proton beam therapy. The center has adopted a unique approach of resort-style cancer treatment and has accumulated over 7,795 treatment cases as of March 13, 2026, since its opening in January 2011. The center treats a wide range of cancers, including prostate cancer, lung cancer, liver cancer and cholangiocarcinoma, pancreatic cancer, head and neck cancer, kidney cancer, bone and soft tissue tumors, metastatic lesions such as lymph nodes, non-surgical treatment for early-stage breast cancer, and postoperative radiation for breast cancer. Operating hours are weekdays from 8:30 AM to 4:30 PM, closed on weekends and holidays. The facility offers multilingual support including English and Korean, and accepts various payment methods such as credit cards, debit cards, and electronic payments. The center also features parking facilities and barrier-free accessibility, providing a treatment environment that takes advantage of Ibusuki's warm climate.