Ono Medical Clinic is an internal medicine clinic located in Haneda, Ota Ward, Tokyo. In addition to general internal medicine, they specialize in gastroenterology, proctology, and breast medicine, offering esophagogastroduodenoscopy, Helicobacter pylori testing, and abdominal, breast, and neck ultrasound examinations. The clinic provides vaccinations and health checkups, including secondary examinations following company health screenings, as well as corporate health checkups and pre-employment health assessments. Prescriptions are filled with generic medications; patients who prefer brand-name drugs must request them from the physician. The clinic offers home visit services in the afternoon and provides on-demand nutritional injections and palliative care. Barrier-free facilities are available, and English-speaking services are offered. The clinic is closed on Sundays, national holidays, and year-end and New Year holidays (December 29 to January 3). Dr. Masaya Ono, the clinic director, holds a Ph.D. in Medicine and brings clinical experience and research achievements from the National Cancer Center, providing care informed by experience at universities and major hospitals. When specialized examinations, hospitalization, or surgery are required, patients are referred to medical institutions with specialists through collaboration with physicians in various fields.