Skip to content
FonteumThe Graph

The capability layer

APIREST + bulk accessMCP serverCallable by AI agentsFHIR R4 APIBulk exportAttestation & audit packReconciliationSource-vs-source diffsEntity graphSnapshotsPoint-in-time, bitemporal

By use case

Exclusion & sanctions screeningCredentialing & provider-data enrichmentAudit evidence & defensible programsProvider data for AI / RAGM&A & network diligence

By buyer

Compliance & riskDevelopers & AI teams

The differentiator

Coverage & sourcesThe catalogFreshnessMethodologyCare CompareFacility qualityBrowse all datasets →
Research

The dev on-ramp

DocsAPI referenceMCPQuickstartStatusChangelogSDKs & integrations
Pricing
Sign inTry the FHIR sandbox →Request access →

Platform

APIMCP serverFHIR R4 APIBulk exportAttestation & audit packReconciliationEntity graphSnapshots

Solutions

Exclusion & sanctions screeningCredentialing & provider-data enrichmentAudit evidence & defensible programsProvider data for AI / RAGM&A & network diligenceCompliance & riskDevelopers & AI teams

Data

Coverage & sourcesFreshnessMethodologyCare CompareBrowse all datasets →
Research

Developers

DocsAPI referenceMCPQuickstartStatusChangelogSDKs & integrations
Pricing
Sign inTry the FHIR sandbox →Request access →
Fonteum · Compare

Looking for a Trella Health Alternative?

Fonteum publishes post-acute provider data sourced directly from CMS federal records — not derived from Medicare claims. CMS Care Compare quality ratings, PBJ Daily Nurse Staffing (

1.3M+Source: https://data.cms.gov/quality-of-care/payroll-based-journal-daily-nurse-staffing · Dataset: cms-pbj-staffing/v1 · Snapshot: 2026-05-01
daily records across facilities), PECOS SNF All Owners ownership disclosure ( rows), and NH Health Deficiency Citations ( records, at the actual-harm threshold). Every field carries the CMS dataset citation, snapshot date, and known limitations.

Request access →or browse Care Compare NH data →
Side-by-side comparison

Fonteum vs Trella Health

Trella HealthFonteum
Post-acute data modelClaims-based post-acute market intelligence — utilization patterns, referral relationships, and PAC performance from Medicare claimsDirect CMS facility records: Care Compare (NH/HH/Hospice quality ratings), PBJ Daily Nurse Staffing (facility-level RN/LPN/CNA hours), PECOS SNF All Owners (ownership disclosure) — facility identity from the source
Nursing home coverageMedicare claims-derived nursing home utilization and referral patternsCMS Care Compare NH module — star ratings, health inspection history, staffing ratings; CMS PBJ Daily Nurse Staffing — daily RN/LPN/CNA hours per facility; CMS NH Health Deficiency Citations — per-citation scope/severity records
SNF ownership dataOwnership data derived from claims billing and NPI recordsPECOS SNF All Owners — direct ACA § 6101 ownership disclosure: owner PAC ID, percentage ownership, entity type flags (for-profit/non-profit, holding company, investment firm)
Provenance transparencyDerived from claims data; source lineage proprietarySource name + last-checked date + limitation on every field: CMS dataset ID + snapshot date + Fonteum methodology version
Pricing modelEnterprise license for PAC market intelligence; typical five-to-six-figure annual contractsFree public access to all PAC research + datasets; pilot tier from $2,500/mo for custom exports and API access
FHIR R4 APIProprietary API; FHIR conformance not a primary product surfaceFHIR R4 US Core 6.1.0 — 5 USCDI v3 resources: Practitioner, Organization, Location, PractitionerRole, HealthcareService
Post-acute data from direct CMS records

Facility identity from the source, not inferred from claims

PBJ Daily Nurse Staffing — the payroll record, not a survey estimate

The CMS Payroll-Based Journal (PBJ) captures actual daily staffing hours from facility payroll systems — RN Director of Nursing, RN Administrative, RN Direct Care, LPN, CNA, Medication Aide. This is the federal compliance record that CMS uses to calculate staffing star ratings. Fonteum ingests the quarterly PBJ PUF directly — 1.3M+ daily records across 14,537 facilities for CY2025Q2: one row per facility per day, with employee vs contractor breakout. It matters more since the federal 3.48-HPRD staffing minimum was rescinded (Dec 3, 2025, effective Feb 2, 2026), leaving per-facility transparency as the accountability mechanism. The aggregate surface is at /staffing.

SNF ownership disclosure under ACA § 6101

PECOS SNF All Owners captures what facilities are required to disclose under ACA Section 6101 — 280,207 ownership rows across 14,425 facilities: owner name, owner PAC ID, percentage ownership (25.0 = 25%), entity type (for-profit/non-profit, holding company, investment firm, medical staffing company), and affiliation entity ID for chain analysis. This is the statutory disclosure record — not derived from NPI billing or corporate filings. Fonteum flags the documented gap (82.4% of top-10 chains have missing ownership_percentage in the source file, per a Health Affairs 2024 analysis) rather than imputing it.

Deficiency citations: scope, severity, and F-tag, per survey

CMS NH Health Deficiency Citations is the per-citation record for every health inspection finding — 418,148 records across 14,635 facilities: B–L scope/severity code, F-tag taxonomy, survey date, and whether the citation is under IDR. Across the dataset, 5.59% of citations sit at scope/severity G or above (actual harm). Fonteum's research study found a 14.7× disparity in harm-rate citations between Illinois (4.57 G+/facility) and New Hampshire (0.31/facility) — a state-survey-intensity story documented with methodology at /research/nursing-home-deficiency-correction-time.

How it works

Ingest → provenance → deliver

STEP 1 / INGEST

Pull post-acute records directly from CMS

Fonteum ingests the post-acute facility records straight from CMS portals on each source's native cadence: Care Compare for nursing home, home health, and hospice; PBJ Daily Nurse Staffing (

1.3M+Source: https://data.cms.gov/quality-of-care/payroll-based-journal-daily-nurse-staffing · Dataset: cms-pbj-staffing/v1 · Snapshot: 2026-05-01
daily records, facilities, quarterly); SNF All Owners ( ownership rows); and NH Health Deficiency Citations ( records). The CMS Provider of Services file supplies the CCN identity backbone — no claims feed, no inferred facility identity.

STEP 2 / PROVENANCE

Attach source, date, and limitation to every field

Each fact is written to the provider_field_provenance layer with the CMS dataset citation, snapshot date, and any known limitation. The documented

82.4%Source: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/skilled-nursing-facility-all-owners · Dataset: cms-snf-all-owners/v1 · Snapshot: 2026-05-01
gap in SNF ownership-percentage values is flagged with a data-availability state rather than imputed; deficiency citations keep their B–L scope/severity code and survey event ID; PBJ rows keep their employee-versus-contractor breakout. The federal record is preserved as it is.

STEP 3 / DELIVER

Free surfaces, FHIR R4 API, and joined exports

The data ships three ways: free public surfaces at /ownership, /staffing, /deficiencies, and /care-compare/nursing-homes (CSV + JSON, no account), a FHIR R4 US Core 6.1.0 API with HL7 bulk $export, and scoped pilot exports from $2,500/mo — including a single facility-keyed export joining ownership, staffing, quality, and deficiencies for a target portfolio via the federal CCN.

FAQ

Common questions

How does Fonteum's post-acute data differ from Trella Health?
Trella Health is built on Medicare claims data — it derives post-acute market intelligence from billing patterns: referral relationships, utilization rates, and PAC provider performance inferred from claims. Fonteum is built on direct CMS facility records: CMS Care Compare for nursing home, home health, and hospice quality ratings; CMS PBJ Daily Nurse Staffing for facility-level RN/LPN/CNA hours ( daily records across facilities, CY2025Q2); PECOS SNF All Owners for ACA § 6101 ownership disclosure ( ownership rows across facilities); and CMS NH Health Deficiency Citations ( records across facilities). These are the source-of-truth facility identity, ownership, staffing, and quality records — not inferences from billing. The practical difference: a claims model can estimate a facility's referral volume, but only the federal payroll record shows its actual reported nurse hours, only the PECOS disclosure shows its ownership chain, and only the survey record shows its inspection findings — each with a CMS dataset citation and snapshot date written to the provenance layer.
Does Fonteum have nursing home deficiency and penalty data?
Yes, sourced directly from CMS records rather than derived from claims. Fonteum ingests CMS NH Health Deficiency Citations (Provider Data Catalog r5ix-sfxw) as a per-citation record: scope/severity code on the B–L scale, F-tag taxonomy, survey event ID, and survey date. The dataset spans citation records across facilities on a three-year rolling basis, and of those citations sit at scope/severity G or above — the threshold for actual harm to a resident. The aggregate surface is at /deficiencies, and the analysis at /research/nursing-home-deficiency-correction-time documents a 14.7× disparity in harm-rate citations between Illinois (4.57 G+ per facility) and New Hampshire (0.31) — a state-survey-intensity finding that does not appear in aggregate star ratings. A separate study covering $467M in civil money penalties and 2,553 payment denials across 6,919 facilities is at /research/nursing-home-penalties-enforcement. Each citation carries its CMS source citation and methodology version.
Does Fonteum have SNF ownership and chain data?
Yes. Fonteum ingests the PECOS-derived CMS SNF All Owners dataset (ACA Section 6101; 42 CFR § 424.516) — ownership rows across facilities. Each row carries the owner name and PAC ID, the percentage ownership where disclosed (25.0 = 25%), entity-type flags (for-profit/non-profit, holding company, investment firm, medical staffing company), and the affiliation entity ID used for chain analysis. The ownership and chain-analysis surface is at /ownership. Crucially, Fonteum surfaces a known gap rather than hiding it: of the top-10 nursing home chains have missing ownership_percentage values in the source file — a finding first documented in a Health Affairs 2024 analysis and reproducible from the public CMS file. Rather than impute a percentage, Fonteum flags the field with an explicit data-availability state, because ownership percentage is the primary signal for controlling-interest determination under OIG affiliate-exclusion doctrine, and a fabricated value would be worse than a marked silence.
Can I access Fonteum's post-acute data without an enterprise contract?
Yes. All post-acute research snapshots and datasets are free to access and cite at /research, /deficiencies, /staffing, and /ownership — no account and no API key for the static CSV and JSON files. This is possible because the underlying CMS records are federal public works under 17 U.S.C. § 105, so Fonteum redistributes the structured, provenance-tagged versions openly. That is a structurally different model from PAC market-intelligence platforms, which typically gate the same federally derived data behind five- or six-figure annual enterprise contracts. For production use cases — bulk exports scoped to specific facility types, geographies, or ownership chains, or a joined export linking PBJ staffing to SNF ownership and Care Compare quality for a target portfolio — the pilot tier starts at $2,500/mo and adds FHIR R4 API access, methodology-versioning commitments, and a 30-day no-penalty exit. No enterprise contract is required for public data access.
Why does the federal payroll staffing record matter more after the staffing-minimum repeal?
CMS Payroll-Based Journal (PBJ) data captures actual daily staffing hours from facility payroll systems — RN, LPN, CNA, and contract staff — not self-reported estimates. Fonteum ingests it directly: daily records across Medicare-certified facilities for CY2025Q2, one row per facility per day with employee-versus-contractor breakout. This record became more important, not less, after the federal minimum staffing rule (3.48 total nurse hours per resident day) was rescinded on December 3, 2025, effective February 2, 2026. With no federal floor enforceable, per-facility staffing transparency is the remaining accountability mechanism for residents, families, researchers, and acquirers. A facility trending toward contract-heavy staffing or below-threshold RN hours is a quality and regulatory signal that appears in the federal payroll record before it shows up in a Five-Star rating change. A claims-derived model does not see payroll hours at all; the PBJ record is the only source that does, and Fonteum publishes it with full provenance.
Can I join Fonteum's post-acute datasets together for diligence?
Yes — joining ownership, staffing, and quality is the core post-acute diligence workflow, and Fonteum's datasets share the federal facility identifier (the CMS Certification Number, or CCN) that makes the join clean. The CMS Provider of Services (POS) file serves as the CCN identity backbone, so a SNF's PECOS ownership record ( rows), its PBJ staffing history ( daily records), its Care Compare star ratings, and its deficiency citations (records) can be assembled into one facility-keyed view. The free surfaces at /ownership, /staffing, /deficiencies, and /care-compare/nursing-homes let you explore each layer; for a target portfolio, the pilot tier delivers a single scoped export joining all of them, with every field retaining its source citation, last-checked date, and any limitation. Because the join keys on the federal CCN rather than a proprietary entity ID, the result is reproducible against the public CMS files rather than locked to a vendor's data model.
Request access →

Explore the post-acute data layer.

Browse free datasets at /staffing, /deficiencies, and /ownership, or request access to scope a custom PAC export.

Request access →or browse Care Compare NH →
See also
  • /staffing → PBJ Daily Nurse Staffing — facility-level RN/LPN/CNA hours from the federal payroll record.
  • /deficiencies → CMS NH Health Deficiency Citations — per-citation scope/severity, F-tag, and penalties.
  • /ownership → PECOS SNF All Owners — ACA § 6101 ownership disclosure and chain analysis.
  • /care-compare/nursing-homes → CMS Care Compare NH module — star ratings, staffing, health inspection history.
  • /sources → Full source library — 44 federal source families with tier, refresh cadence, and limitations.

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 →

Talk to us

Managed pilots, enterprise terms, and audit-ready, signed attestation packages for compliance, risk, and research teams.

Talk to us →
Fonteum
Platform
Platform overviewAPIMCP serverFHIR R4 APIBulk exportAttestation & audit packReconciliationEntity graphSnapshots
Solutions
All solutionsExclusion & sanctions screeningCredentialing & enrichmentAudit evidenceProvider data for AI / RAGM&A & network diligenceCompliance & riskDevelopers & AI teams
Data & sources
Coverage & sourcesBrowse all datasetsState Medicaid exclusionsFreshnessMethodologyCare CompareSanctionsOwnershipStaffingDeficienciesSpecial Focus Facilities
Developers
Developer hubDocsAPI referenceQuickstartStatusChangelogSDKs & integrationsWebhooks
Research
Research hubHospital margin gapProvider access gapsGlossaryComparisonsCitationsWhy Fonteum
Company
AboutPressCustomersPricingContactEditorial policyCorrections
Trust & legal
TrustQualitySecurityPrivacy policyTerms of serviceMedical disclaimer

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

© 2026 Fonteum LLC. All rights reserved.

·hello@fonteum.com

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

Request access→

The substrate, by the numbers

44federal source familiesDistinct CMS, OIG, HRSA, FDA and peer datasets
35dataset pagesCitable, downloadable /data catalog pages
65reproducible studiesEach shipping the SQL behind its figures