Matsuzawa Clinic, located in Honmachi, Shibata City, Niigata Prefecture, specializes in otorhinolaryngology (ear, nose, and throat). The clinic's hours are 8:45 AM to 12:00 PM and 2:45 PM to 5:30 PM. A web-based reception system allows patients to obtain a queue number in advance, making visits more convenient. The clinic emphasizes infection control by separating patients with symptoms such as fever, sore throat, and cough from general patients in the examination area. Since the early stages of the COVID-19 pandemic, the clinic has served as a designated medical facility for examinations and testing. In April 2024, the clinic signed a medical measures agreement with Niigata Prefecture under the revised Infectious Disease Law, playing an important role in regional infection control. Payment options include cash and PayPay electronic payment. The clinic is equipped with parking and barrier-free facilities, creating an accessible environment for diverse patients. English-language service is also available. The clinic is closed on Thursdays, Saturday afternoons, Sundays, and public holidays.