Located in Koyasu-cho, Hachioji City, Tokyo, Oshima Clinic is a community-oriented clinic specializing in internal medicine. The clinic is a member of the Hachioji City Medical Association and has long supported primary healthcare in the community, including cooperating with the city's infant health checkups and vaccination programs. Operating hours are from 8:30 AM to 12:00 PM and 3:30 PM to 7:00 PM, with the notable feature of offering evening hours that make it convenient for visits after work or school. The clinic is closed on Thursdays, Sundays, holidays, and Saturday afternoons. English-speaking services are available, creating a welcoming environment for patients who are not fluent in Japanese. Additionally, the clinic has parking facilities and barrier-free accessibility, making it easy to use for wheelchair users and elderly patients. Through comprehensive internal medicine care, the clinic broadly supports the health management of local residents and serves as a familiar primary care provider in Hachioji City.