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CMS Care CompareCMS Care Compare
U.S. Centers for Medicare and Medicaid Services · Tier-2 · profile-enrichment (renders on matched profiles)
CMS Care Compare publishes facility-quality data via the Provider Data Catalog (data.cms.gov/provider-data/). Four cluster families share the CMS Certification Number (CCN) as canonical identifier: Nursing Home Compare, Home Health Compare, Hospice Compare, and Dialysis Facility Compare.
How this source shows up on OwnListed.
Today: four published research snapshots — nursing homes, home health, dialysis, hospice — plus the source pack staged for future Tier-2 facility pilots. CMS overall star ratings and component sub-ratings render only when a facility-level vertical launches; until then the data is research-only.
What this source does NOT mean
CMS ratings are published by CMS and reflect the measure definitions in the source dataset. OwnListed does not independently rate, inspect, score, endorse, or guarantee any provider.
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
7 fieldsWrite-locked — captured to provenance, not displayed
4 fieldsWhat we can’t infer from this source.
- Each Care Compare cluster has its own measure-set; the overall rating is not directly comparable across clusters.
- Hospice has no CMS overall star rating today; the Hospice General Information dataset publishes provider availability + ownership only.
- State-level aggregates (mean rating, share-of-stars) NEVER attach to individual facility profiles. They render on /research only.
- Special Focus Facility status, fines / payment denials, abuse-icon flags, and individual quality measures are write-locked pending operator copy review — captured to provenance but not surfaced.
- Refresh cadence is conservative (90 days) versus CMS's monthly publish; profiles may lag by 1-2 monthly snapshots.
Authority, license, refresh cadence.
Authority
U.S. Centers for Medicare and Medicaid Services
Tier
Tier-2 · profile-enrichment (renders on matched profiles)
Refresh cadence
Quarterly across most datasets; some monthly. OwnListed re-pulls on a 90-day cadence.
License
U.S. government public-domain works. Attribution required: 'Source: CMS Care Compare · Last checked {date}'. License ↗
Official URL
Attribution requirement
Source: CMS Care Compare ({Provider Data Catalog dataset name + id}) · Last checked {YYYY-MM-DD}
What the source allows.
U.S. government public-domain works. CMS publishes the Provider Data Catalog at data.cms.gov/provider-data/ with explicit redistribution rights. Attribution must include both the dataset name (e.g. "NH Provider Info", dataset id 4pq5-n9py) and the snapshot date. OwnListed's 90-day re-pull cadence is intentionally conservative versus CMS's monthly publish.
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
State-level mean star rating (research-only)
Sample value
3.41 (CA, n=1,184 rated nursing homes)
Provenance line
Source: CMS Care Compare · NH Provider Info (4pq5-n9py) · Snapshot 2026-04-15 · Display rule: research-only — never rendered on individual facility profiles
Where this source already shows up.
Research studies citing this source
- /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.