Nishimura Internal Medicine and Gastroenterology Clinic, located in Minami-Nagareyama, Nagareyama City, Chiba Prefecture, is a clinic specializing in internal medicine. The clinic provides treatment for cedar and dust mite sublingual immunotherapy and sleep apnea syndrome, and also administers influenza and COVID-19 vaccinations. New patients must complete registration by 11:30 AM or 5:30 PM, and endoscopic examinations require appointments by 11:00 AM or 5:00 PM. The fever clinic requires advance reservations by phone, and antigen/influenza antigen tests require at least 8 hours to have passed since the onset of fever. The clinic features automatic payment machines and accepts VISA and Mastercard. It has 16 parking spaces and is barrier-free accessible. English services are available, and electronic payments can be used.