Yamaguchi Clinic, located in Nishi-Sugamo, Toshima Ward, Tokyo, specializes in internal medicine. The clinic is closed on Sundays, holidays, Saturday afternoons, and during the year-end and New Year holidays, with ophthalmology services also closed on the third Thursday of each month. This clinic provides English language services and accepts various payment methods including credit cards, debit cards, and electronic payments. The facility is equipped with parking and features barrier-free accessibility, demonstrating consideration for patient access. The clinic operates in accordance with standards established by the Minister of Health, Labour and Welfare, providing itemized medical statements free of charge and prescribing medications by generic name when appropriate. The clinic actively promotes medical digital transformation initiatives, including online billing and online eligibility verification, while working to utilize diagnostic information obtained through electronic eligibility verification and create an environment conducive to using My Number cards as health insurance cards. Through these initiatives aimed at delivering high-quality care, the clinic provides appropriate medical services to patients.