Located in Furugoofu, Oita City, Oita Prefecture, Iinkai Hospital (Medical Corporation Sankokai) provides specialized care centered on internal medicine. The hospital offers internal medicine, diabetology, respiratory medicine, and cardiovascular medicine, supporting the management of lifestyle diseases as well as respiratory and cardiovascular health. Consultation hours are from 9:00 AM to 1:00 PM in the morning and from 2:00 PM to 5:30 PM in the afternoon, with the hospital closed on Sundays and public holidays. The facility is equipped with a parking lot, making it convenient for patients visiting by car. Additionally, the hospital is barrier-free, ensuring an accessible environment for wheelchair users and those requiring mobility assistance. With English and Korean language support available, the hospital accommodates a wide range of patients. By offering multiple specialized departments centered on internal medicine, Iinkai Hospital provides comprehensive support for local residents, from daily health consultations to specialized care management.