Sumiyoshi Clinic is a medical clinic in Koizumicho, Hikone City, Shiga Prefecture, primarily specializing in internal medicine and offering internal medicine, gastroenterology, and pediatrics. Located in Room 103, 1st floor, Willife Minami-Hikone, it provides parking facilities and English-speaking services. The clinic is closed on Sundays and holidays, as well as January 1-3, August 14-16, and December 29-31. Additionally, the clinic operates a day service center at a separate location (Takegahamacho, Hikone City), which also houses the Hikone City Dementia HOT Support Center and Care Plan Center. The clinic contributes to community healthcare through this network of related facilities.