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FonteumThe Graph

By use case

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Compliance & riskJournalists & newsroomsDevelopers & AI teams

By industry

HealthcareProviders & facilitiesSanctionsOFAC / EU / UK / UN / OIG / SAMFederal contractingSAM · USASpending · FAPIIS

The capability layer

APIREST + bulk accessFor AI agentsModel Context Protocol serverFHIR R4 APIBulk exportAudit packSigned report artifacts; source facts remain separately citedReconciliationSource-vs-source diffsAI answers with sourcesHow records link upHistoryRetained versions for named sources

The differentiator

Coverage & sourcesThe catalogFreshnessMethodologyCare CompareFacility qualityAI answers, comparedBrowse all datasets →
Research

The dev on-ramp

DocsAPI referenceConnect your AI agent (MCP)One-paste installFHIR sandboxLive API surfaceQuickstartStatusChangelogSDKs & integrations
Pricing
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Solutions

Exclusion & monitoring (self-serve)Exclusion & sanctions screeningCredentialing & provider-data enrichmentAudit evidence & defensible programsProvider data for AI / RAGM&A & network diligenceCompliance & riskJournalists & newsroomsDevelopers & AI teamsHealthcareSanctionsFederal contracting

Platform

APIFor AI agentsFHIR R4 APIBulk exportAudit packReconciliationAI answers with sourcesHow records link upHistory

Data

Coverage & sourcesFreshnessMethodologyCare CompareAI answers, comparedBrowse all datasets →
Research

Developers

DocsAPI referenceConnect your AI agent (MCP)FHIR sandboxQuickstartStatusChangelogSDKs & integrations
Pricing
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EDITORIAL REVIEW

Our reviewers

Fonteum publishes source-linked research and data pages over US federal healthcare datasets. Before a healthcare-facing page ships, a non-practicing medical reviewer reads it for one thing: that the terminology, the limitations language, and the way each federal source is described are accurate. The pages are data-led and informational — they report what a dataset says and where it came from, not clinical guidance.


MEDICAL REVIEW

Dr. Jennifer Montecillo, MD

Non-practicing medical reviewer · Gullas College of Medicine, 2019

Dr. Jennifer Montecillo earned her medical degree from Gullas College of Medicine in 2019. She is a non-practicing medical reviewer: she does not see patients, diagnose, treat, or give clinical advice, and nothing on Fonteum is a substitute for a clinician. Her role is editorial. She reviews how Fonteum describes the federal datasets behind a page — making sure a CMS measure is named the way CMS names it, that a limitation is stated plainly, and that nothing reads as a claim the source does not support.

Her review scope is the language layer, not the data pipeline: source interpretation, clinical and regulatory terminology, and the limitations blocks that tell a reader what a number can and cannot be used for. Available provenance fields — source, observation date, and methodology version — are populated separately by the data pipeline. Snapshot-attestation coverage is distinct.


THE SIGNOFF
Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer. This line, or its byline form, appears on every healthcare page Dr. Jennifer Montecillo, MD has reviewed, alongside the date it was last read.

REVIEW CADENCE

Every reviewed page carries a last-reviewed date and a next-review date. The standing cadence is a re-review every six months, and a page is re-read out of cycle whenever the federal dataset behind it publishes a new release or its limitations language changes. The review covers wording and source description; it is not an audit of the underlying CMS, OIG, HRSA, or HHS data, which remains a US Government Work published by those agencies.


SEE ALSO
  • About Fonteum →
  • Methodology →
  • Research hub →
  • Corrections log →

What’s on file, by the numbers

Platform snapshot · 2026-07-15

13.4Mproviders & companiesProviders, organizations, owners, and facilities on file
26.2Msource-linked factsSource-linked field facts in the dated platform snapshot
35sources liveCrosswalk-resolved sources with a snapshot in the preceding 45 days
111sources integratedActive registry rows; integration does not establish a load
13state Medicaid jurisdictionsDistinct states represented in the state-exclusions serving table

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

Published figures name their source and date.

Source and date

Published research identifies its government file and observation date. Source-file SHA-256 coverage is disclosed separately; facts do not currently link deterministically to signatures.

Reproducible SQL

Each study ships the exact query behind its figures, run against the same dated copy of the federal file we used. Re-run it yourself.

Daily observations

The platform records table row counts daily. Those observations detect local drift; they do not imply that an upstream publisher released or Fonteum ingested new data that day.

Named medical review

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

Read the full provenance and attestation methodology →

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

© 2026 Fonteum LLC. All rights reserved.

·hello@fonteum.com

A public-records graph that exposes source and observation metadata where supplied.

Fonteum's provenance ledger contained 26.2M source-linked facts on July 12, 2026. All but 14 carried a source-file SHA-256; 0 linked deterministically to a signature. Inspect a supplied snapshot id at fonteum.com/verify · source-mark coverage and limitations.
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