Onaka Clinic
About
Onaka Clinic, located just a 1-minute walk from JR Hachioji Station North Exit, is an internal medicine clinic specializing in colonoscopy, gastroscopy, and same-day hemorrhoid surgery. In 2025, the clinic achieved a record of 15,081 endoscopic examinations and 413 same-day hemorrhoid surgeries, establishing itself as a leading center for gastroenterological and proctological care in the region. A key feature of the clinic is the use of sedatives during colonoscopy, allowing patients to undergo examinations with minimal discomfort. For hemorrhoid treatment, the clinic offers same-day surgery covered by health insurance rather than as out-of-pocket procedures, with costs starting from approximately 20,000 yen for patients with 30% copayment, providing an affordable treatment option. Additionally, pancreatic screening will be offered starting March 2026, continuing the expansion of medical services. Clinic hours are 9:00 AM to 12:00 PM and 2:00 PM to 6:00 PM, with credit card and electronic payment accepted. The facility is fully barrier-free, ensuring easy access for a wide range of patients.
