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Vaccination Record Gap Checker
Compare recorded doses with expected doses and produce a dated question list for your clinician.
This tool offers general information. It does not replace a doctor, lawyer, accountant, or emergency service.
Enter your numbers
Enter only the details needed for this task. Check them against the original source.
Your result
This tool gives general information. It is not medical advice. Speak to a licensed clinician before you make a health decision.
Your result will appear here.
Engine self-test
Running golden cases…
Source notes
- U.S. Centers for Disease Control and Prevention — Vaccines
The CDC publishes the recommended immunization schedules and records guidance.
Reviewed 2026-10-09. Your provider's records and your state's school or employer rules are the operative record for your situation.
What this App does not do
This App compares counts you enter. It does not interpret the CDC schedule for your case, judge immunity, or alter records.
This free App has no paid features. It does not contact an agency, employer, bank, seller, provider, or other person.