Saiseikai Matsuyama Hospital, located in Yamashimamachi, Matsuyama City, Ehime Prefecture, is rooted in the community as a hospital working to revitalize regional healthcare, insurance, and welfare. The hospital specializes in internal medicine, with outpatient reception from 8:30 AM to 11:30 AM and 1:00 PM to 4:00 PM, accepting only patients with appointments. Saturday reception ends at 10:30 AM, with afternoon sessions closed on the first and third Saturdays. Closed days include Sundays, public holidays, and the second, fourth, and fifth Saturdays, as well as year-end, New Year, and local festival days. Gynecology services are available only on Tuesdays and Thursdays, with reception until 10:30 AM. Breast disease treatment is provided by the surgical department on the first and third Saturdays, while otolaryngology services ended in March 2022. Facilities include English support, credit card and electronic payment options, parking, and barrier-free accessibility. Established in 1911, Saiseikai continues its history of providing a trusted medical environment for the community.