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 →
  1. Fonteum
  2. /
  3. Glossary
  4. /
  5. LEIE
Healthcare Data GlossaryRegulatory

LEIE: Definition and Healthcare Context

Full name: List of Excluded Individuals/Entities

The List of Excluded Individuals/Entities (LEIE) is a database maintained by the HHS Office of Inspector General (OIG) of individuals and entities barred from participation in Medicare, Medicaid, and all other federal health care programs. Exclusions result from convictions for fraud, patient abuse, licensing revocations, or other statutory bases. Organizations that employ or contract with excluded parties face significant civil monetary penalties. The LEIE is updated monthly and available as a free bulk CSV download from oig.hhs.gov.

Last updated: 2026-06-17Reviewed by: Dr. Jennifer Montecillo, MD — Gullas College of Medicine, 2019. Non-practicing medical reviewer.

How it’s used

  • OIG LEIE (oig-leie): the LEIE bulk CSV is ingested monthly, linking each exclusion record to NPI, individual name, and exclusion basis for compliance screening.
  • CMS NPPES NPI Registry: NPPES records are cross-referenced against the LEIE to flag excluded providers in Fonteum's provider data graph.
  • CMS PECOS Medicare Provider Enrollment: PECOS enrollment revocations often follow OIG LEIE exclusion actions.

Frequently asked questions

What is the LEIE?
The LEIE (List of Excluded Individuals/Entities) is the OIG's database of individuals and organizations barred from participating in Medicare, Medicaid, and other federal health care programs.
How often is the LEIE updated?
The LEIE is updated monthly by the HHS Office of Inspector General and is available as a free bulk CSV download.
What happens if an employer hires someone on the LEIE?
Organizations that employ or contract with excluded individuals may face civil monetary penalties of up to $10,000 per item or service provided by the excluded party.

Related terms

  • OIG Exclusion
  • CMS
  • Medicare
  • Medicaid
  • Provider Enrollment
  • NPI Number
  • Exclusion Screening
  • UEI

Explore in Fonteum

How Fonteum sources, resolves, and publishes data tied to this term.

  • DataOIG LEIE exclusions dataset
  • Use caseExclusion & sanctions screening
  • Use caseScreening workflow for compliance teams
  • StudyProvider exclusions cluster around distressed operators
  • StudyBarred but billable: excluded providers still enrolled

Authoritative sources

  • OIG LEIE — List of Excluded Individuals/Entities↗
  • OIG: LEIE download files↗
  • OIG: Exclusions FAQ↗
← All glossary terms

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

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 datasetsFreshnessMethodologyCare CompareSanctionsOwnershipStaffingDeficienciesSpecial Focus Facilities
Developers
Developer hubDocsAPI referenceQuickstartStatusChangelogSDKs & integrationsWebhooks
Research
Research hubGlossaryComparisonsCitationsWhy 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→