Hibiya Clinic is an internal medicine clinic located in Yurakucho, Chiyoda-ku, Tokyo, situated in the office district around Yurakucho Station. While Sundays and national holidays are closed days, the clinic operates according to the calendar during Golden Week periods, ensuring medical care is available on days other than regular holidays, excluding consecutive holidays such as year-end and New Year periods. The clinic places emphasis on preventive vaccinations and immunizations, accepting influenza vaccinations from late September each year. They handle various types including COVID-19 RNA vaccines, tetanus-diphtheria-pertussis (Tdap) vaccines, diphtheria-pertussis-tetanus-poliomyelitis-Hib combined vaccines, meningococcal (MCV4) vaccines, measles-mumps-rubella (MMR) combined vaccines, and pneumococcal (23-valent) vaccines. Tumor marker tests are also conducted, offering examinations aimed at assisting in cancer diagnosis and follow-up observation. Health checkups and examinations are provided, with some revisions to vaccine prices and health checkup/examination prices from April, and campaigns for tumor marker tests are also implemented. The facility is barrier-free equipped, and parking is available. Medical consultation in English is available.