Keio University Hospital, located in Shinanomachi, Shinjuku Ward, is closed on Sundays, the 1st and 3rd Saturdays, national holidays, and the New Year period as a general rule. This medical facility can provide services in multiple languages, including English and Korean, and accepts payments via credit card, debit card, and electronic payment. The facility is equipped with a parking lot and is barrier-free accessible. The medical department includes internal medicine. Information regarding outpatient clinic days for the 2025 and 2026 fiscal years is published on the official website. Additionally, temporary closure notices for the Natural Lawson on the 2nd floor of Building 1 were announced in February 2026, information about the newly established 2H reception was provided in March, and details about the relocation of the 1N document reception, outpatient appointment, and examination reservation windows were provided at the end of February. For medical professionals, the list of first-visit attending physicians is regularly updated. Patient salons for cancer patients and their families are also held.