Koike Clinic is located in Fujimi-machi, Suwa District, Nagano Prefecture, offering panoramic views of the Yatsugatake Mountains, Mt. Fuji, and the Southern Alps. Established in 1935 by the founder's grandfather, this historic medical facility has served the community through the father's role as a home doctor. Five pine trees stand in the front yard, welcoming visitors since the clinic's founding. The clinic specializes in internal medicine, treating lifestyle-related diseases such as hypertension, diabetes, and hyperlipidemia. Additionally, it provides vaccinations and health checkups to support the health management of local residents. The clinic offers services in English, is equipped with a parking lot, and features barrier-free facilities, making it accessible to users from diverse backgrounds.