Hanatani Clinic is located in Koyasan, Wakayama Prefecture, a UNESCO World Heritage Site, and provides internal medicine services in the area. Koyasan is a historic sacred site visited by numerous pilgrims and travelers from both Japan and abroad, and the clinic serves as a cornerstone of medical care in this mountain community. Consultations are offered in two sessions — 9:00 AM to 12:00 PM and 4:00 PM to 7:00 PM — making it easy for visitors to receive care between sightseeing and worship activities without being limited to midday hours. The clinic offers services in English, providing a reassuring environment for those who require assistance in languages other than Japanese. The facility is also barrier-free, designed to accommodate wheelchair users and those with mobility difficulties. The clinic is closed on Thursdays, Sundays, public holidays, and during the year-end and New Year period (December 29 to January 3); patients are advised to confirm clinic hours in advance. Situated in the unique setting of Koyasan, this clinic capable of addressing internal medicine concerns stands as a reliable medical resource not only for local residents but also for those visiting the area.