Updated 2026-07-30
Reassignment of benefits is how an individual Medicare practitioner authorizes a group or organization to bill Medicare and receive payment for their services. CMS publishes reassignment relationships in public revalidation data; PECOS Lookup joins those records to an NPI using exact public identifiers only and shows each relationship with its source file and data vintage.
Medicare normally pays the enrolled individual who performed a service. A practitioner may instead reassign those billing rights to a group practice or organization, which then bills Medicare and receives payment for the practitioner's services. One practitioner can hold reassignments to several groups at once, and a large group typically holds reassignments from many practitioners.
Reassignment is an enrollment-system relationship between an individual enrollment record and a group enrollment record. It is not a statement about employment terms, payment amounts, or whether any specific claim will be paid.
CMS publishes reassignment relationships alongside its revalidation data: each row links an individual enrollment to a group enrollment, carrying the public enrollment and PAC identifiers for both sides plus the group's legal business name.
PECOS Lookup joins these records by exact public identifiers only — enrollment IDs and PAC IDs — never by name similarity. A relationship is shown only when the public identifiers match exactly, and every relationship carries its source file and data vintage.
A listed relationship means the public CMS file contained an exact-identifier link between the individual and the group as of the file's vintage. Absence of a relationship in the loaded public file is not proof that none exists — files lag, and some relationships fall outside the published data.
Reassignment data does not verify state licensure, DEA registration, NPDB records, employment, or that Medicare will pay any particular claim.
Yes. The public CMS data routinely shows one individual enrollment linked to multiple group enrollments, and each relationship is listed separately with its own identifiers.
Not necessarily. It means the public enrollment data linked the two records as of the file's vintage. Employment can change faster than the public files update.
Check any NPI free — enrollment signals and exact reassignment relationships with source and vintage evidence