Matsui Clinic is an internal medicine clinic located in Wadacho, Naka-ku, Hamamatsu City, Shizuoka Prefecture, conveniently situated just a 2-minute walk from JR Tokaido Main Line Tenryugawa Station, to the east of MaxValu. Clinic hours are 9:00-12:00 and 15:00-18:30, closed on Wednesdays, Sundays, and holidays. The barrier-free facility offers parking and supports English services, credit card payments, and electronic payments. Influenza vaccinations for the 2025 fiscal year are available from October 2 to December 26, and online consultations are also provided. Return patients are recommended to use same-day web registration, and using the web questionnaire system before consultation ensures smooth service.