Seiboku Clinic, located in Nishi-Waseda, Shinjuku-ku, is a medical clinic specializing in internal medicine. The clinic's philosophy is "Accompanying with Kindness," and it provides personalized medical care tailored to each individual, aiming to be "a clinic where you can feel free to consult about anything." Consultation hours are 9:00 AM to 12:30 PM and 2:30 PM to 6:00 PM, with Saturday consultations only in the morning from 9:00 AM to 12:00 PM. Registration is accepted up to 15 minutes before consultation hours, and health checkup registration is accepted up to 1 hour before. The clinic is closed on the 5th Saturday, Sundays, and holidays. The facility is barrier-free with accessibility considerations. Payment methods accepted include credit cards and electronic payments. The clinic also provides English-language services.