Located in Niihama City, Ehime Prefecture, the Ehime Rosai Hospital of the Japan Organization of Occupational Health and Safety contributes to regional healthcare as a medical institution specializing in internal medicine. The hospital provides outpatient services during weekday mornings and afternoons, and is closed on weekends, holidays, Golden Week, and year-end and New Year holidays. Regarding medical services, the hospital is prepared for COVID-19 response and determines eligibility for outpatient visits based on infection history. In terms of facilities, the hospital accepts credit cards, debit cards, and electronic payments, provides parking, and offers barrier-free access. English-language services are also available, and a system is in place ensuring no additional fees are charged for visits without a referral letter.