Located in Jonan-minami, Oyama City, Tochigi Prefecture, Jonan Clinic specializes in internal medicine and provides services in English. To reduce the risk of hospital-acquired infections, the clinic has implemented various measures including expanding the waiting room, ensuring adequate ventilation, using hypochlorous acid air sterilization and deodorization equipment, and installing CO2 sensors. In terms of medical services, the clinic offers a wide range of examinations and screenings including lifestyle disease management, endoscopic examinations, cancer screenings, smoking cessation clinics, and comprehensive health checkups. In addition to these medical services, the clinic accepts credit cards and electronic payments, and is equipped with parking facilities and barrier-free accessibility. The clinic is closed on Wednesdays, Sundays, and public holidays, as well as during the first three days of the New Year, Obon period, and year-end and New Year holidays.