Konbu Onsen Hospital, located in Kogane, Rankoshi Town, Isoya District, Hokkaido, is an internal medicine hospital operated by the medical corporation Seiwakai. Rankoshi Town is a nature-rich area adjacent to the Niseko region in southwestern Hokkaido, and the hospital, situated in the Kogane district, provides a wide range of services—from everyday health consultations to the diagnosis and treatment of various internal medicine conditions—for local residents. The hospital operates on a relatively stable schedule, with services available on most days except Sundays, public holidays, and the year-end and New Year period (December 29 to January 3). English-language support is available at the facility, making it accessible to patients whose primary language is not Japanese. Payment options include both credit cards and electronic payments, allowing patients to settle their bills even without cash on hand. Given the limited public transportation access in this rural area, an on-site parking lot is provided to ensure convenient access by car. Named after the Konbu Onsen area, this hospital continues to serve as an integral part of local healthcare in Rankoshi Town, offering internal medicine services amid a rich natural environment.