|PECOS stands for the Provider Enrollment
and Chain/Ownership System. It was created by CMS as an electronic portal for Medicare
enrollment of physicians, non-physician practitioners, and provider and supplier
Even though some providers are enrolled
in Medicare, their enrollment records might not be in PECOS. If they have not sent
in a Medicare application to report any changes to their Medicare enrollment information
within the past 5 years, they probably do not have an enrollment record in PECOS.