Skip to content
FonteumThe Graph

By use case

Exclusion screening (self-serve)First 25 NPIs — on screenExclusion & sanctions screeningCredentialing & provider-data enrichmentAudit evidence & defensible programsProvider data for AI / RAGM&A & network diligence

By buyer

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
Sign inScreen 25 NPIs free →Buy $129 certificate →

Solutions

Exclusion screening (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
Sign inScreen 25 NPIs free →Buy $129 certificate →
Providers/Specialties/Cardiology/Page 27

Provider directory · By specialty

Cardiology provider records · page 27

CMS NPPES Cardiology provider records, paginated for crawlable discovery into canonical NPI citation pages.

Source: CMS NPPES NPI Registry — tracked specialty cache·Snapshot: 2026-05-06·Method: nppes-supply-by-state/v2026.05·ID: nppes-provider-directory/cardiology/page-27

Showing 1,873-1,944 of 35,006 source-backed NPI records for Cardiology providers. The list is drawn from the tracked CMS NPPES specialty caches and links directly to canonical provider citation pages.

CMS NPPES snapshot 2026-05-06 · page 27 of 487

  • NPI 1891798658
    Cardiology · Escondido, CA
    207RC0000X
  • NPI 1912945130
    Cardiology · Escondido, CA
    207RC0000X
  • NPI 1922063270
    Cardiology · Escondido, CA
    207RC0000X
  • NPI 1477638492
    Cardiology · Eureka, CA
    207RC0000X
  • NPI 1801808266
    Cardiology · Eureka, CA
    207RC0000X
  • NPI 1821079393
    Cardiology · Eureka, CA
    207RC0000X
  • NPI 1851385223
    Cardiology · Eureka, CA
    207RC0000X
  • NPI 1417909615
    Cardiology · Exeter, CA
    207RC0000X
  • NPI 1083008262
    Cardiology · Fairfield, CA
    207RC0000X
  • NPI 1629058615
    Cardiology · Fairfield, CA
    207RC0000X
  • NPI 1659398543
    Cardiology · Fairfield, CA
    207RC0000X
  • NPI 1669490454
    Cardiology · Fairfield, CA
    207RC0000X
  • NPI 1679830590
    Cardiology · Fairfield, CA
    207RC0000X
  • NPI 1972500676
    Cardiology · Fairfield, CA
    207RC0000X
  • NPI 1477949063
    Cardiology · Fall River Mills, CA
    207RC0000X
  • NPI 1780655159
    Cardiology · Flagstaff, CA
    207RC0000X
  • NPI 1467524520
    Cardiology · Folsom, CA
    207RC0000X
  • NPI 1467524546
    Cardiology · Folsom, CA
    207RC0000X
  • NPI 1548332521
    Cardiology · Folsom, CA
    207RC0000X
  • NPI 1821351230
    Cardiology · Folsom, CA
    207RC0000X
  • NPI 1922174085
    Cardiology · Folsom, CA
    207RC0000X
  • NPI 1932326998
    Cardiology · Folsom, CA
    207RC0000X
  • NPI 1003025743
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1023216892
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1194767459
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1508914490
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1518114370
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1598993156
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1699846592
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1811056575
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1831260801
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1912078809
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1922156801
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1982634788
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1982854287
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1992876965
    Cardiology · Fontana, CA
    207RC0000X
  • NPI 1013029065
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1033290887
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1033565338
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1073288437
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1235664434
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1245368265
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1295914216
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1396049029
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1437285095
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1568503639
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1598296147
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1649307000
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1669644951
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1689638280
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1720344880
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1750587143
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1780835801
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1801099593
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1811050081
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1811164528
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1841370210
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1982801718
    Cardiology · Fountain Valley, CA
    207RC0000X
  • NPI 1255447041
    Cardiology · Freedom, CA
    207RC0000X
  • NPI 1861484511
    Cardiology · Freedom, CA
    207RC0000X
  • NPI 1144250184
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1144381278
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1154344919
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1275683286
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1285056481
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1295838746
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1306921077
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1326055658
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1356499578
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1386669489
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1417342312
    Cardiology · Fremont, CA
    207RC0000X
  • NPI 1588749246
    Cardiology · Fremont, CA
    207RC0000X
Previous provider recordsNext provider records

Back to Cardiology provider summary

What’s on file, by the numbers

Platform snapshot · 2026-07-17

13.4Mproviders & companiesProviders, organizations, owners, and facilities on file
26.2Msource-linked factsSource-linked field facts in the dated platform snapshot
—sources liveCrosswalk-resolved sources with a proved content transition 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 →

Fonteum
Platform
Platform overviewAPIFor AI agents (MCP)FHIR R4 APIBulk exportAudit packReconciliationAI answers with sourcesHow records link upHistory
Solutions
All solutionsExclusion & sanctions screeningCredentialing & enrichmentAudit evidenceProvider data for AI / RAGUse casesM&A & network diligenceCompliance & riskJournalists & newsroomsDevelopers & AI teams
Data & sources
Coverage & sourcesBrowse all datasetsState Medicaid exclusionsFreshnessMethodologyCare CompareNursing homesRecall recordsSanctions screeningOIG LEIE listOwnershipStaffingDeficienciesSpecial Focus Facilities
Federal contracting
OverviewAwards during active exclusionFederal debarment scorecardProcurement questionsContractor lookup8(a) certification guide
Developers
Developer hubDocsAPI referenceQuickstartStatusChangelogSDKs & integrationsWebhooks
Research & guides
Research hubLearnHow it worksGuidesHealthcare provider dataExclusion & sanctions screeningProvider credentialing dataHealthcare data for AIHospital margin gapProvider access gapsGlossaryComparisonsSourced data vs plain LLM answersCitationsManifestoWhy Fonteum
Company
AboutPressCustomersPricingContactEditorial policyCorrections
Trust & legal
TrustTrust markQualitySecurityPrivacy policyTerms of serviceAPI termsMedical disclaimer

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.
Request access→