Saigusa Hospital, operated by the medical corporation Jiseikai, is located in Ryuo-Shimmachi, Kai City, Yamanashi Prefecture, and serves as a community internal medicine facility. The hospital accepts outpatient consultations from 8:30 AM to 12:00 PM and 2:00 PM to 4:30 PM, maintaining a system that makes it accessible for patients ranging from working adults to the elderly. The facility is closed on Sundays, national holidays, and during the year-end and New Year period (December 30 to January 3), so it is advisable to confirm consultation dates before visiting. The building is barrier-free, ensuring a safe environment for those with mobility concerns or wheelchair users. Additionally, the hospital has a parking lot, which provides significant convenience in Yamanashi Prefecture where public transportation access is limited, making it easy for patients to visit by car. Visiting hours for inpatients are from 2:00 PM to 7:00 PM, and the hospital also provides inpatient services rooted in the community. Operated by Jiseikai, the hospital continues to meet the healthcare needs of Kai City and its surrounding areas through internal medicine-focused care.