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1,322,867 nurse-staffing records · CMS PBJ
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Federal healthcare data infrastructure

rows

The federal record, callable by AI agents.

17+ federal source families · FHIR R4 · refreshed daily. Every number carries 14 fields of provenance.

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NPI
browse a sample audit pack →
EARLY PILOT PARTNERS
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4,127 records reconciled · 04:12 UTCNPPES daily snapshot · v2026.05.0PECOS weekly snapshot · 2026-05-0422 federal source families · all primary-sourceCare Compare · quarterly refresh currentOIG LEIE · 68,055+ exclusions · monthly refreshHRSA HPSA · monthly snapshot · 2026-05-03QPP MIPS · 477,137 PY2023 clinician scoresAudit pack endpoint · 187ms p95Methodology v2026.05.0 stamped on every export4,127 records reconciled · 04:12 UTCNPPES daily snapshot · v2026.05.0PECOS weekly snapshot · 2026-05-0422 federal source families · all primary-sourceCare Compare · quarterly refresh currentOIG LEIE · 68,055+ exclusions · monthly refreshHRSA HPSA · monthly snapshot · 2026-05-03QPP MIPS · 477,137 PY2023 clinician scoresAudit pack endpoint · 187ms p95Methodology v2026.05.0 stamped on every export
The Registry

6 federal public-record sources, cited per field.

Every value Fonteum surfaces traces to one of the registered sources below. Each cite carries the source URL, dataset ID, snapshot date, refresh cadence, and license posture. State contractor boards and restricted-distribution registries — state-bar, NMLS, ABMS — are explicitly excluded.
#
Source
Dataset ID
Snapshot
Cadence
License
Direct provider dataDirect provider data19 sources
01
CMS NPPES
npiregistry.cms.hhs.gov
2026-05-07
Daily
Open
02
CMS PECOS
data.cms.gov · pecos-base
2026-05-04
Weekly
Open
03
CMS POS iQIES
data.cms.gov · 4pq5-n9py
2026-05-04
Quarterly
Open
04
CMS Care Compare — NH
data.cms.gov · care-compare
2026-05-04
Quarterly
Open
05
CMS Care Compare — HH
data.cms.gov · 6jpm-sxkc
2026-05-04
Quarterly
Open
06
CMS Care Compare — Hospice
data.cms.gov · yc9t-dgbk
2026-05-04
Quarterly
Open
07
CMS Care Compare — Dialysis
data.cms.gov · 23ew-n7w9
2026-05-04
Quarterly
Open
08
CMS Care Compare — ASC
data.cms.gov · vqsr-zcz8
2026-05-04
Quarterly
Open
09
CMS PBJ Staffing
data.cms.gov · pbj-quality
2026-05-01
Quarterly
Open
10
CMS SNF All Owners
data.cms.gov · snf-owners
2026-05-01
Annual
Open
11
CMS NH Deficiencies
data.cms.gov · nh-defic
2026-05-01
Quarterly
Open
12
CMS NH Penalties
data.cms.gov · nh-penalties
2026-05-01
Quarterly
Open
13
CMS SFF
data.cms.gov · sff
2026-05-01
Quarterly
Open
14
CMS QPP MIPS
qpp.cms.gov · mips
2026-05-24
Annual
Open
15
CMS HCRIS
data.cms.gov · hcris-2552-10
2026-05-24
Annual
Open
16
CMS Open Payments
openpaymentsdata.cms.gov
2026-05-24
Annual
Open
17
OIG LEIE
oig.hhs.gov · exclusions
2026-05-01
Monthly
Open
18
HRSA HPSA
data.hrsa.gov · hpsa
2026-05-03
Monthly
Open
19
HRSA UDS
data.hrsa.gov · uds
2026-05-24
Annual
Open
Workforce & economic contextHealthcare workforce & economic context3 sources
20
BLS OEWS
bls.gov · oes
2026-04-30
Annual
Open
21
BEA Regional
bea.gov · regional
2026-04-15
Annual
Open
22
Census PEP
census.gov · pep-v2025
2026-04-01
Annual
Open
Open & attested

Live FHIR R4 API, a public SHA-256 attestation chain, and an open methodology — every value we publish is traceable to its federal source.

FHIR R4 API
US Core 6.1.0
live · /api/fhir
Attestation chain
SHA-256 signed
public · /chain
Methodology
version v2026.05.0
public · /methodology
Provenance
14-tuple per field
source · date · confidence
Source registry
22 federal families
all primary-source · /sources
The Contract

Fourteen fields per cite. Versioned. Immutable.

Every value Fonteum returns is bound to a fourteen-tuple provenance contract. Schema-pinned per release. Stamped into every audit-pack export, CSV, and API response.

Key
Field
Description
Example
_source
Source name
Canonical name from issuing authority.
"CMS Provider of Services"
_source_url
Source URL
Deep link to source record. No auth.
data.cms.gov/.../4pq5-n9py
_dataset_id
Dataset ID
Publisher's stable identifier.
"4pq5-n9py"
_snapshot
Snapshot date
ISO date of source pull reconciled against.
"2026-05-07"
_methodology
Methodology version
Transformation contract. Monotonic.
"v2026.05.0"
_last_checked
Last checked
UTC of most recent reconciliation pass.
"2026-05-08T04:12Z"
_confidence
Confidence
0.00–1.00 from source agreement + rules.
1.00
_data_availability
Availability
Present, missing, restricted, deprecated.
["present"]
_pipeline_version
Pipeline version
Git commit SHA of the ingestion code that produced the snapshot.
"a3f8c1d"
_doi
DOI
Zenodo DOI for the methodology version (FAIR F1 persistent identifier).
"10.5281/zenodo.xxxxx"
_license
License
SPDX identifier for redistribution rights.
"US-Government-Works"
_coverage_period_start
Coverage start
ISO-8601 date data coverage begins.
"2020-01-01"
_coverage_period_end
Coverage end
ISO-8601 date data coverage ends, or "ongoing".
"ongoing"
_slsa_provenance_url
SLSA provenance URL
URL to the SLSA Build Level 3 provenance artifact for this snapshot.
"https://github.com/..."
NPPESPECOSPOS iQIESCare Compare — NHCare Compare — HHCare Compare — HospiceCare Compare — DialysisCare Compare — ASCPBJSNF OwnersNH DeficienciesNH PenaltiesSFFQPP MIPSHCRISOpen PaymentsOIG LEIEHRSA HPSAHRSA UDSBLS OEWSBEA RegionalCensus PEPNPPESPECOSPOS iQIESCare Compare — NHCare Compare — HHCare Compare — HospiceCare Compare — DialysisCare Compare — ASCPBJSNF OwnersNH DeficienciesNH PenaltiesSFFQPP MIPSHCRISOpen PaymentsOIG LEIEHRSA HPSAHRSA UDSBLS OEWSBEA RegionalCensus PEP
Fonteum
22 federal families · live
How Fonteum works — four-stage flow.Federal source pulls. 31 federal datasets, weekly snapshots.Federal source pulls31 federal datasets, weekly snapshots01Provenance stamp. 14-tuple sealed at ingest.Provenance stamp14-tuple sealed at ingest02Entity match. NPI + tax ID + locality crosswalk.Entity matchNPI + tax ID + locality crosswalk03Surface. API · MCP · citations.SurfaceAPI · MCP · citations04
Every number ships with its full chain of custody. Click any datapoint on this site to inspect it.
GET/api/v1/audit-pack/export?ccn=015009v2026.05.0
// Burns Nursing Home, AL — CCN 015009
{
  "facility_name": "BURNS NURSING HOME, INC.",
  "_source": "CMS Provider of Services",
  "_dataset_id": "4pq5-n9py",
  "_snapshot": "2026-05-07",
  "_methodology": "v2026.05.0",
  "_confidence": 1.00,
  "total_nurse_hprd": 4.049,
  "sff_status": "not_flagged"
}
# Stream the audit pack for a CCN — standard requests, no SDK
import requests

r = requests.get("https://fonteum.com/api/v1/audit-pack/export?ccn=015009")
for record in r.json():
    # every value carries its fourteen-field provenance contract
    print(record["_source"], record["_snapshot"])
// Stream the audit pack for a CCN — native fetch, no SDK
const res = await fetch("https://fonteum.com/api/v1/audit-pack/export?ccn=015009");
const records = await res.json();
for (const r of records) {
  // fourteen-field provenance on every value
  console.log(r._source, r._snapshot, r._confidence);
}
200 OK · streamed
187ms · 14.2 KB · methodology v2026.05.0
Methodology

Every release, changelog-backed.

Fonteum's transformation contract is monotonic. New versions ship with explicit changelogs. Old versions are pinnable. Every audit pack stamps its methodology version.

May 8, 2026
v2026.05.0· current
  • FDA Drug Establishments feed (source #14)
  • LTACH/IRF Care Compare module (source #20)
  • CCN reconciliation tolerance ±2 days
  • Single-source confidence 0.85
April 15, 2026
v2026.04.0
  • LA LSBLC and AZ ROC state license boards
  • Per-row availability state signal
  • Snapshot timestamps to ISO-8601 UTC
March 1, 2026
v2026.03.0
  • SNF All Owners feed; PE/REIT flag derivation
  • OIG LEIE reconciled at NPI + LBN
  • Provider Directory v1 endpoint
Research
Featured study · May 26, 2026

NSA Surprise Billing Compliance: IDR Data Analysis 2026

The No Surprises Act generated over 580,000 IDR disputes in its first 18 months — far exceeding CMS projections. Providers win ~71% of completed arbitrations, receiving payment above the Qualifying Payment Amount. MRF compliance improved significantly after CMS enforcement notices, but gaps persist among smaller regional issuers.

  • CMS NSA IDR
  • CMS MRF Compliance
Read the study →
Study

FQHC Healthcare Access Gaps by State (HRSA UDS 2022)

1,373 Health Center Program awardees operating ~9,000 FQHC sites served 30.5 million patients in 2022. Medicaid and uninsured patients make up 68% of FQHC patient volume. Wyoming and the Dakotas have the lowest site density in the nation — less than 1 FQHC per 50,000 residents.

  • HRSA UDS
  • HRSA HPSA
Read the study →May 26, 2026·1,373 records
Study

OIG Exclusion Patterns: Who Gets Barred from Medicare

Analysis of 68,055 OIG LEIE records spanning 1977–2026: exclusion-type breakdown, statutory authority distribution, NPI match rate, and state concentration patterns.

  • OIG LEIE
  • HHS OIG
Read the study →May 25, 2026·68,055 records

Primary federal sources

  1. Centers for Medicare & Medicaid Services (CMS). National Plan and Provider Enumeration System (NPPES) NPI Registry — Daily Snapshot. npiregistry.cms.hhs.gov, 2026. Accessed: 2026-05-07.
  2. Centers for Medicare & Medicaid Services (CMS). Provider Enrollment, Chain, and Ownership System (PECOS) — Revalidation & Enrollment Public Use Files. data.cms.gov, 2026. Accessed: 2026-05-04.
  3. Centers for Medicare & Medicaid Services (CMS). Care Compare Provider Data — Nursing Home, Home Health, Hospice, Dialysis, ASC. data.cms.gov, 2026. Accessed: 2026-05-04.
  4. Office of Inspector General, U.S. Department of Health & Human Services. List of Excluded Individuals and Entities (LEIE) — Monthly Exclusion File. oig.hhs.gov, 2026. Accessed: 2026-05-01.
  5. Health Resources & Services Administration (HRSA). Health Professional Shortage Area (HPSA) Designation Files. data.hrsa.gov, 2026. Accessed: 2026-05-03.
READY TO SHIP

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