Located in Kashima City, Ibaraki Prefecture, Koyama Memorial Hospital is a general hospital operated by Zenjinkai Medical Corporation. Featuring a wide range of departments from internal medicine specialties including gastroenterology, cardiology, nephrology, and respiratory medicine, to surgery, orthopedics, neurosurgery, obstetrics and gynecology, ophthalmology, and urology, the hospital serves as a core institution for regional healthcare. Numerous specialty clinics are available, such as liver, IBD, diabetes, arrhythmia, and Kampo medicine clinics, providing specialized treatment for various conditions. The facility is equipped with a primary stroke center, dialysis center, endoscopy center, and cardiac intensive care unit, supporting advanced medical care including emergency response. Patient support systems are comprehensive, with a cancer consultation support center and second opinion clinics. The hospital has obtained hospital function evaluation certification, demonstrating a commitment to improving healthcare quality. English language services are available, and both credit cards and electronic payments are accepted to accommodate diverse payment needs. The facility features a spacious parking lot and barrier-free equipment, ensuring an accessible environment regardless of mobility or physical condition.