Located in Goutokuji, Setagaya-ku, Tokyo, Haneda Naika Iin is an internal medicine clinic operated by Medical Corporation Seikyokai. Serving as a community-based primary care provider, the clinic handles outpatient care for patients of all ages, from children to the elderly, and actively provides home healthcare services including home visits and house calls. A key characteristic of the clinic is its strong involvement in local public health initiatives, including Setagaya City's specified health checkups, infant health examinations, and various vaccination programs. In terms of clinical services, the clinic offers a general practice staffed by female physicians and an orthopedic outpatient clinic, where PRP (Platelet-Rich Plasma) therapy, a form of regenerative medicine, is also available. The clinic places great emphasis on practicing evidence-based medicine (EBM), and the entire staff is committed to continually updating their knowledge of the latest medical information and technologies. Clinic hours are from 9:00 AM to 12:30 PM and 2:30 PM to 6:00 PM, with closures on Thursdays, Sundays, and public holidays.