Hasegawa Dental Clinic, located in Uchisaiwaicho, Chiyoda-ku, Tokyo, is a dental specialty medical facility operated by Medical Corporation Nisshu-kai. Situated in the heart of the business district near Kasumigaseki and Shimbashi areas, it serves many patients including office workers in the surrounding area. The clinic is open from 9:30 AM to 6:30 PM on weekdays only. It is closed on weekends, holidays, year-end/New Year, and during the Obon period, so patients are advised to confirm clinic hours before visiting. The clinic provides comprehensive dental care, including cavity treatment and periodontal disease management. It accepts credit cards and electronic payments, making it convenient for patients who prefer cashless transactions. The clinic's central location and flexible payment options are among its key features.