Located in Tsukuda, Chuo Ward, Tokyo, River City Children's Clinic is a pediatric specialty practice. Its most notable feature is that it is open on both Saturdays and Sundays, making it accessible for dual-income families who have difficulty scheduling appointments on weekdays. Consultation hours include general practice from 10:00 AM to 12:00 PM, followed by dedicated time slots for vaccinations and infant health checkups from 2:00 PM to 4:00 PM, with general practice resuming from 4:00 PM to 6:00 PM. The vaccination and infant checkup hours are separated from general consultations, creating a streamlined environment for vaccine visits and health screenings. The clinic offers a wide range of both routine and optional vaccinations, including DPT-IPV (five-in-one), measles-rubella, varicella, rotavirus, and HPV vaccines, and also handles mumps and influenza vaccines eligible for Chuo Ward subsidy programs. Since October 2023, the clinic has supported online eligibility verification using My Number Cards. The facility is barrier-free, providing a safe environment for families with infants and young children. Appointments are given priority, so calling ahead to schedule is recommended.