PECOS
PECOS (Provider Enrollment, Chain, and Ownership System) is the online system CMS uses to manage Medicare provider and supplier enrollment. Home health agencies use PECOS to enroll, revalidate, and report changes such as ownership or new locations, and Medicare uses it to verify that the practitioner certifying home health services is eligible to do so. Claims can deny when the certifying practitioner is not properly enrolled.
Definition
PECOS (Provider Enrollment, Chain, and Ownership System) is the online system CMS uses to manage Medicare provider and supplier enrollment. Home health agencies use PECOS to enroll, revalidate, and report changes such as ownership or new locations, and Medicare uses it to verify that the practitioner certifying home health services is eligible to do so. Claims can deny when the certifying practitioner is not properly enrolled.
Why it matters
PECOS is part of the Revenue Cycle & Billing vocabulary used across home health operations, documentation, and revenue cycle. Understanding it helps clinicians, QA leads, and administrators stay aligned on care quality and compliance.
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