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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 →

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 →
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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.

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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
65reproducible studiesEach shipping the SQL behind its figures

System Status

All systems operational.

Updated Jun 17, 2026, 06:10 PM UTC

API Documentation

Endpoint Uptime

Last 24 hours
Last 30 days

Active Risk Alerts

6880 critical signals active across the provider graph.
OIG Exclusion20d ago
NPI: 1922348218
LEIE row ID7
Type1128a1
Exclusion date2018-04-19
DescriptionOTHER BUSINESS
Dataset release2026-05-08
Source: OIG LEIE Exclusions List
OIG Exclusion20d ago
NPI: 1942476080
LEIE row ID27
Type1128b8
Exclusion date2017-05-18
DescriptionDME COMPANY
Dataset release2026-05-08
Source: OIG LEIE Exclusions List
OIG Exclusion20d ago
NPI: 1972902351
LEIE row ID3
Type1128b8
Exclusion date2022-03-20
DescriptionOTHER BUSINESS
Dataset release2026-05-08
Source: OIG LEIE Exclusions List

Dataset Freshness

DatasetSourceStatusRowsLast syncedLast snapshot
CMSCurrent1,322,946May 25, 2026—
CMSCurrent466,892May 24, 2026—
CMSCurrent417,689May 25, 2026—
CMSCurrent279,034May 25, 2026—
CMSCurrent68,211May 25, 2026—
HHS-OIGCurrent68,055May 25, 2026—
CMSCurrent16,832May 8, 2026—
CMSCurrent14,425May 25, 2026—
CMSCurrent12,392May 25, 2026—
CMSCurrent6,943May 25, 2026—
CMSCurrent7,557May 27, 2026—
CMSCurrent5,611May 27, 2026—
CMSCurrent6,102May 24, 2026—
CMSCurrent6,019May 24, 2026—
CMSCurrent6,019Jun 3, 2026—