Located in Kitano, Mitaka City, Tokyo, IRIE NAika Clinic is a community-based medical facility specializing in internal medicine, The clinic also provides care in gastroenterology, respiratory medicine, and and allergy departments. For patients with suspected infectious diseases, the clinic has implemented a fully appointment-based system with a dedicated examination protocol that separates patient flow from general patients to minimize the risk of transmission. The clinic is closed on Wednesdays, Sundays, public holidays, and the year-end/New Year holiday period.