Updated 2026-07-30
Medicare requires enrolled providers to revalidate their enrollment periodically, and CMS publishes each enrollment's due date in the public Revalidation Due Date List. PECOS Lookup shows the due date on file for any NPI — including the adjusted due date when CMS has moved it, or a clear not-posted state when CMS has not set one — with the list's vintage on the result. Missing a revalidation can lead to enrollment deactivation.
Revalidation is Medicare's periodic re-verification of an enrollment: providers must confirm and update their enrollment information on CMS's schedule. It applies per enrollment, so a practitioner with multiple enrollments can have multiple due dates.
Missing a revalidation can lead to deactivation of the Medicare enrollment — a separate thing from NPPES NPI deactivation, which concerns the identifier itself. See NPI vs PECOS for why the two systems differ.
The public list also carries the enrollment's state and specialty, which helps disambiguate practitioners with several enrollments.
Run the 10-digit NPI through the lookup on the home page: the revalidation section shows the due date on file from the loaded CMS list, with the list's vintage and the time it was checked. The official list on data.cms.gov is the source of truth; the link below goes straight to it.
Absence from the loaded revalidation list is not proof that no due date exists — public files lag, and not every enrollment appears in every publication. Verify anything consequential against the official CMS list or your enrollment record.
CMS lists the enrollment but has not published its next due date yet. It is a normal state on the official list — check again after the next publication rather than assuming a missed deadline.
Yes. Due dates attach to enrollments, not people. A practitioner enrolled in multiple states or under multiple enrollment records can have a due date for each.
Look up any NPI's revalidation due date free — posted, adjusted, or not-posted, with the CMS list's vintage on every result