Nagai Clinic is an internal medicine clinic located in Okusawa, Setagaya Ward, Tokyo. Guided by the philosophy of healthcare that aligns with different life stages, the clinic supports patients' health and beauty through both internal medicine and aesthetic dermatology services. English language support is available for patients who require communication in English. Office hours are Monday through Saturday from 10:00 AM to 12:30 PM and 2:00 PM to 7:00 PM, with no consultations on Sundays and holidays. The last appointment is accepted until 6:00 PM, and the clinic is closed during the year-end and New Year period from December 31st to January 3rd. Both insurance-covered and self-pay treatments are offered, though no self-pay services are available on Sundays and holidays. By combining internal medicine care with aesthetic dermatology treatments, this clinic aims to provide medical services that support patients' present and future well-being.