Located in Sakai, Musashino City, Tokyo, Ooya Clinic is a community-based facility offering internal medicine, obstetrics and gynecology, and pediatrics. With a board-certified OB/GYN specialist on staff, the clinic provides comprehensive physical and mental healthcare for women from adolescence through menopause and beyond. By combining internal medicine and pediatrics, it also serves as a primary care facility for patients of all ages—from children to the elderly—functioning as a general consultation hub even for those unsure which department to visit. The clinic prioritizes warm, attentive dialogue and takes a sincere approach to addressing each patient's concerns. Online consultations are available for those with mobility challenges or living in remote areas. On-site parking makes visits by car convenient. Hours include morning (9:00–12:00), afternoon (15:00–18:00), and evening (18:00–19:00) sessions, ensuring accessibility for patients unable to visit during daytime. The clinic is closed on Sundays, public holidays, and during the New Year period.