Located in Nishimachi, Tachikawa City, Tokyo, this medical facility has served as a core regional healthcare provider since its establishment in April 1947, with 450 beds. Designated as a Regional Cancer Cooperation Hospital, it provides comprehensive cancer care from diagnosis and treatment to palliative care. As a Perinatal Cooperation Hospital and Regional Medical Support Hospital, the staff collaborates to support childbirth. The health screening programs include endoscopic stomach examinations, brain screenings using head MRI, breast cancer screenings, and uterine cancer screenings. Beyond medical services, the facility offers consultation services for medical expenses, home healthcare, welfare services, cancer and dementia support, and second opinions. In-house facilities include a Clinical Research Center, Infection Control Room, and Neonatal Intensive Care Unit. A new building was completed in May 2018, and the facility was designated as a Tokyo Disaster Base Hospital in fiscal year 2018. The facility offers multiple payment methods including English support, barrier-free access, and on-site parking. As of April 2025, the facility serves an average of 329 inpatients and 828 outpatients per day.