The first day of school for McKinney ISD is Thursday, August 13, 2026 — and if your child still needs a physical, updated vaccines, or a vision screening, now is the time to get it done. Pediatric offices fill up fast in July and August, and waiting until the last week before school means longer waits and more stress for everyone. At A+ Kids Pediatrics in McKinney, we see families every summer rushing to check these boxes before the first bell rings. This guide walks you through everything your child needs to start the year healthy, confident, and ready to learn.