Koigakubi Naika Clinic is an internal medicine specialty clinic located in Higashi-Koigakubi, Kokubunji City, Tokyo. The clinic is open from 9:00 AM to 12:30 PM in the morning and from 2:00 PM to 5:00 PM in the afternoon, closed on Thursdays, Sundays, and public holidays. The clinic actively provides vaccinations, offering not only the traditional injectable influenza vaccine but also FluMist, a nasal spray live vaccine for children aged 2 to 18 years. The needle-free nasal option is especially worth considering for young children who fear injections. The clinic also handles COVID-19 vaccinations (Pfizer's Comirnaty) and can administer both vaccines simultaneously. Vaccinations require no appointment, and weekday visits between 2:00 PM and 2:30 PM are prioritized for vaccine recipients, allowing for relatively smooth service. Facility-wise, the clinic has a parking lot and is barrier-free, creating an accessible environment for those with mobility concerns or arriving by car. Payments can be made by credit card and electronic payment, enabling cashless transactions. As a community-based internal medicine clinic, it handles everything from routine health management to preventive care.