Verify any provider by NPI: public PECOS enrollment signal, ordering/referring eligibility, revalidation due dates, exact reassignment relationships, Medicare opt-out, and OIG LEIE exclusions — every answer backed by the source, its vintage, and the time it was checked.
PECOS (Provider Enrollment, Chain, and Ownership System) is Medicare's enrollment system. PECOS Lookup reports the public enrollment signal for an NPI — whether a public PECOS enrollment record is present, ordering/referring eligibility, revalidation due dates, and exact reassignment relationships — each shown with its source and timestamp.
Public datasets from CMS, OIG, and state Medicaid agencies, including the NPPES NPI Registry, PECOS enrollment and ordering/referring files, revalidation and reassignment data, Medicare opt-out and revocation lists, the OIG LEIE exclusion list, and state Medicaid exclusion lists. Every result carries the source name, its vintage, and the time it was checked.
Live sources such as the NPPES NPI Registry are queried in real time. Snapshot sources are refreshed from CMS and OIG on their publication cadence, typically monthly. Each result shows the source vintage and the fetch timestamp so you can see how fresh it is.
Medicare requires enrolled providers to revalidate their enrollment periodically. The CMS Revalidation Due Date List publishes each enrollment's due date, and some show no posted date until CMS sets one. PECOS Lookup shows the due date on file for an NPI with the list's vintage; missing a revalidation can lead to deactivation.
No. PECOS Lookup surfaces public enrollment and exclusion signals with evidence. It is not PECOS portal or HETS access, claim adjudication, credentialing, or a guarantee of payment, and it uses no beneficiary or claims data.