Chitose Clinic, operated by Medical Corporation Eikenkai, is a clinic specializing in internal medicine located in Minami-Karasuyama, Setagaya Ward, Tokyo. The clinic provides English-speaking services and offers smoking cessation treatment using Champix. Designated as an institution playing an active role in home medical care, it emphasizes community healthcare and house-call services. The clinic also engages in educational activities, such as conducting special lectures on community healthcare and house-call medicine at Kyorin University School of Medicine. It has also contributed to NHK's "Close-up Gendai" program. Closed on weekends, holidays, 1st to 5th Saturdays, Sundays, and year-end/New Year period (January 1-3, December 30-31). Smoking cessation treatment resumed on January 13, 2026, following the resumption of Champix distribution. Temporary closures may occur, so checking the latest information is recommended. The clinic also collaborates on life sciences and medical research.