Nakano Naika Clinic, operated by the medical corporation Chushinkai, is an internal medicine specialty clinic located on the third floor of the Koda Building. Specializing in internal medicine, the clinic treats a wide range of conditions, from acute illnesses such as colds and fevers to lifestyle-related diseases including hypertension, diabetes, and dyslipidemia. Serving as a primary care physician for local residents, the clinic provides ongoing medical care to support everyday health management. Consultation hours follow a two-part schedule: mornings from 8:30 to 12:30 and afternoons from 14:00 to 18:00, making it convenient for daytime visits. The clinic is closed on Sundays and national holidays, as well as during the year-end and New Year period (December 30 to January 3) and the Obon season (August 13 to 16). The building housing the clinic is fully equipped with barrier-free facilities, ensuring a safe and accessible environment for elderly patients with mobility concerns and those using wheelchairs. A parking lot is also available, allowing patients who have difficulty using public transportation to visit by car. As a trusted destination for internal medicine concerns, the clinic continues to deliver community-rooted healthcare.