Located in Ryu-O, Kai City, Yamanashi Prefecture, Nakazawa Clinic serves as a family doctor catering to patients from children to the elderly. The clinic provides internal medicine, gastroenterology, respiratory medicine, cardiology, pediatrics, and other medical services. In addition to specialized internal medicine care for digestive, respiratory, and circulatory systems, the clinic offers comprehensive health checkups, physical examinations, and occupational health services. They engage in public health activities including infant health checkups and vaccinations, and provide various vaccines such as influenza, COVID-19, shingles, cervical cancer, and pneumococcal for elderly. Endoscopic examinations include transnasal gastroscopy and colonoscopy, with H. pylori eradication treatment also available. The clinic addresses a wide range of needs including sleep apnea testing and treatment, dementia care, hay fever treatment, smoking cessation, and ED treatment. Home medical care services include house calls, home visits, end-of-life care at home, and home oxygen therapy. With English support, parking availability, and online new patient registration, the clinic supports the health management and promotion of local residents.