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SOURCES · REFRESH CADENCE

Per-source-family refresh cadence.

Source release frequency, Fonteum snapshot frequency, and last-pull date for every registered source family. Auto-derived from the canonical snapshot manifest at /research/data/_manifest.json. Most-recent snapshot across all sources: 2026-05-08.

SourceRelease frequencyFonteum snapshotLast pullSource URL
CMS Special Focus Facility (SFF) program list
cms-sff
MonthlyMonthly2026-05-07source ↗
OIG List of Excluded Individuals/Entities (LEIE)
cms-leie
Monthly (UPDATED.csv)Monthly2026-05-08source ↗
CMS Care Compare — Nursing Home Provider Information
care-compare-nursing-homes
QuarterlyQuarterly2026-05-07source ↗
CMS Care Compare — Home Health PDC
care-compare-home-health
QuarterlyQuarterly2026-05-07source ↗
CMS Care Compare — Hospice General Information
care-compare-hospice
QuarterlyQuarterly2026-05-07source ↗
CMS Care Compare — Dialysis Facility Compare
care-compare-dialysis
QuarterlyQuarterly2026-05-07source ↗
CMS Care Compare — ASC Quality Measures
care-compare-asc
Annual (CY reporting)Annual2026-05-07source ↗
CMS Payroll-Based Journal — Daily Nurse Staffing
cms-pbj-daily-nurse-staffing
QuarterlyQuarterly2026-05-08source ↗
CMS Nursing Home Health Deficiencies
cms-nh-deficiencies
MonthlyMonthly2026-05-08source ↗
CMS Nursing Home Penalties (CMP + Payment Denials)
cms-nh-penalties
MonthlyMonthly2026-05-08source ↗
CMS SNF All Owners (PECOS-derived)
cms-snf-all-owners
Quarterly (per Final Rule)Quarterly2026-05-08source ↗
CMS Provider of Services (POS)
cms-pos
QuarterlyQuarterly2026-05-07source ↗
CMS Care Compare — Hospital General Information
care-compare-hospitals
QuarterlyQuarterly2026-05-07source ↗
CMS Care Compare — Inpatient Rehab Facilities
care-compare-irf
QuarterlyQuarterly2026-05-07source ↗
CMS Care Compare — Long-Term Acute Care Hospitals
care-compare-ltach
QuarterlyQuarterly2026-05-07source ↗

All snapshot dates are also visible on each respective data surface (e.g., /care-compare/home-health, /sanctions, /special-focus-facilities). Cadence is published programmatically; accuracy is verifiable against CMS source URLs above.

Built on the authoritative federal record

The primary sources, named on every page.

These are the federal agencies whose public datasets Fonteum ingests and attributes — the issuing authorities, not customers or partners. Every figure on the site links back to one of them.

  • CMS
  • HHS-OIG
  • HRSA
  • FDA
  • NLM
  • NUCC
  • Census
  • BLS
  • BEA

See the full source registry, with license and refresh cadence for each →

Reproducible by design

Every figure traces to its federal source.

14-tuple provenance

Every rendered fact ties to a source URL, dataset ID, snapshot date, row key, and SHA-256 — the full chain-of-custody record.

Reproducible SQL

Each study ships the exact query behind its figures, run against the cited federal snapshot. Re-run it yourself.

Daily reconciliation

Published counts are reconciled against the upstream federal datasets on a daily cadence, with drift logged.

Named medical review

Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

Read the full provenance and attestation methodology →

Two doors

Use the free API and open data

Query providers, facilities, sanctions, and quality scores — each field carrying its federal source. Self-serve, no call to start.

Explore the API →Browse the data catalog →

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Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

© 2026 Fonteum LLC. All rights reserved.

The U.S. healthcare graph AI can cite — every fact carries its source.

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The substrate, by the numbers

44federal source familiesDistinct CMS, OIG, HRSA, FDA and peer datasets
35dataset pagesCitable, downloadable /data catalog pages
61reproducible studiesEach shipping the SQL behind its figures