Yamashita Cardiovascular and Internal Medicine Clinic is located in Shimohandan, Oita City, Oita Prefecture, and has been serving the community for over 36 years since its establishment in 1988. The clinic's director, Dr. Kenji Yamashita, is a board-certified specialist in General Internal Medicine by the Japanese Society of Internal Medicine and a board-certified Cardiovascular Specialist by the Japanese Circulation Society. The hospital director, Dr. Tatsuhiko Oga, holds a Doctor of Medicine degree and is certified as a Specialist in Internal Medicine, Cardiovascular Specialist, and Cardiac Arrhythmia Specialist. The clinic provides care in cardiovascular medicine, internal medicine, gastroenterology, and rehabilitation, and is equipped with diagnostic facilities including cardiac, abdominal, and carotid ultrasound, full-body CT scanning, gastroscopy, 24-hour electrocardiography, and bone densitometry. On Wednesday afternoons, a diabetes outpatient clinic is conducted by physicians from Oita University Hospital. Operating hours are weekdays from 8:30 AM to 12:00 PM and 2:00 PM to 6:00 PM, with Saturday mornings only. The clinic is closed on Thursday afternoons, Sundays, and public holidays. Special holiday closures are observed from May 3-5, August 13-15, and December 31 to January 3. The clinic accepts credit cards and electronic payments, and is fully equipped with parking and barrier-free facilities. English-language services are available.