Iwata Naika (Medical Corporation Hakuyukai) is an internal medicine clinic located in Ose-cho, Chuo Ward, Hamamatsu City, Shizuoka Prefecture. As a community-based medical institution, it handles a wide range of general internal medicine conditions, from everyday ailments to chronic disease management. Clinic hours are 8:30 AM to 12:00 PM in the morning and 3:00 PM to 6:30 PM in the afternoon. Saturday hours extend to 1:00 PM for the morning session only, making it convenient for patients who have difficulty visiting on weekdays. The clinic is closed on Wednesdays, Sundays, and national holidays. The facility is equipped with a parking lot for easy access by car. It is also barrier-free, ensuring a safe and comfortable environment for elderly patients and those with physical disabilities. As an internal medicine clinic in Chuo Ward, Hamamatsu City that emphasizes accessibility and convenience, it plays a vital role in supporting the health of local residents.