Located in Nara-cho, Aoba-ku, Yokohama, Kanagawa Prefecture, Oka Clinic is a community-based internal medicine practice. The clinic operates on a two-session schedule: mornings from 9:00 to 12:00 and afternoons from 15:00 to 18:00. It is open on weekdays and Saturdays, excluding Sundays, national holidays, the year-end/New Year period (December 29 – January 3), and summer holidays, offering a schedule that accommodates working individuals and diverse daily routines. The facility is equipped with a parking lot for visits by private car. Barrier-free access ensures a safe, comfortable environment for wheelchair users and elderly patients with mobility concerns. As an internal medicine practice, Oka Clinic addresses a broad range of conditions—from acute illnesses such as colds and fever to the management of lifestyle-related diseases including hypertension, diabetes, and hyperlipidemia—supporting the everyday health of local residents. Set in the green, residential neighborhood of Aoba-ku, Yokohama, it serves as an approachable family doctor for the community.