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CMS PECOSCMS PECOS Medicare Provider Enrollment
U.S. Centers for Medicare and Medicaid Services · Tier-2 · profile-enrichment (renders on matched profiles)
CMS Provider Enrollment, Chain, and Ownership System (PECOS) publishes a monthly snapshot of providers actively enrolled in Medicare fee-for-service. A row in PECOS authorizes the provider to bill Medicare for the listed specialty + state.
How this source shows up on OwnListed.
We cross-reference NPPES-matched healthcare practices against PECOS to surface a Medicare-billing-active indicator on the profile, alongside the CMS provider type and enrollment state. The display module is gated to medical archetypes only.
What this source does NOT mean
Medicare enrollment records identify public CMS enrollment records; they do not indicate quality, outcomes, board certification, or appointment availability. Confirm Medicare assignment with the practice directly.
Per-field display contract.
Every field below has a `display_allowed` flag in the §94 provenance schema. Write-locked fields are captured to provenance for audit but never rendered on profile pages.
Renders on profile
3 fieldsWrite-locked — captured to provenance, not displayed
2 fieldsWhat we can’t infer from this source.
- PECOS reflects Medicare fee-for-service enrollment only — not Medicare Advantage panels or commercial-insurance contracts.
- Providers can be high-quality and not enrolled in Medicare. Absence in PECOS is not a negative quality signal.
- Providers can be enrolled with a temporarily-suspended billing status that the monthly snapshot does not reflect.
- PAC ID and Enrollment ID are CMS-internal identifiers; OwnListed captures them to provenance for audit but never renders them on profile pages.
Authority, license, refresh cadence.
Authority
U.S. Centers for Medicare and Medicaid Services
Tier
Tier-2 · profile-enrichment (renders on matched profiles)
Refresh cadence
Monthly — CMS publishes a fresh PECOS Public Provider Enrollment file each month.
License
U.S. government public-domain works (https://www.usa.gov/government-works). Free to use with attribution; explicit redistribution rights. License ↗
Attribution requirement
Source: CMS PECOS · Last checked {YYYY-MM-DD}
What the source allows.
Same public-domain works regime as NPPES (https://www.usa.gov/government-works). Bulk redistribution permitted with attribution. The monthly Public Provider Enrollment file is published as a downloadable CSV; OwnListed pulls the enrollment indicator + provider type + enrollment state only.
What a single field looks like in the graph.
A worked example. Every field surfaced from this source carries this shape of provenance line — source · last checked · display rule · confidence (when applicable).
Field
Medicare enrollment indicator
Sample value
Active
Provenance line
Source: CMS PECOS · Last checked 2026-04-22 · Display rule: render label "Active in Medicare fee-for-service" · Confidence: 1.0 (NPI exact-match)
Where this source already shows up.
Verticals where this source renders today
- dermatologists
- chiropractors
- /sources → The full source library — every dataset OwnListed cites.
- /data-provenance → The provider graph — pipeline diagram, source-family clusters, field-level provenance examples, display rules.
- /methodology → Network-wide sourcing, refresh cadence, and corrections policy.
- /editorial-policy → Independence, sourcing, conflicts, corrections, retractions.