Skip to content
FonteumThe Graph

By use case

Exclusion & monitoring (self-serve)Free roster screen — no accountExclusion & 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 inFree roster screen →Get a signed certificate →

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
Sign inFree roster screen →Get a signed certificate →
Providers/States/Massachusetts/Page 2

Provider directory · By state

Massachusetts provider records · page 2

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

Source: CMS NPPES NPI Registry — tracked specialty caches·Snapshot: 2026-05-06 – 2026-05-07·Method: nppes-supply-by-state/v2026.05·ID: nppes-provider-directory/massachusetts/page-2

Showing 73-144 of 13,053 source-backed NPI records for Massachusetts. 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 – 2026-05-07 · page 2 of 182

  • NPI 1073541256
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073551354
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073561163
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073596953
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073602553
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073620431
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073649711
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073770293
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073807004
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073952792
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1083230114
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1083605547
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1083605646
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1083663298
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1104052240
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1104187962
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1104807379
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1104977420
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1104978857
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1114032174
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1114237237
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1114629987
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1114902582
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1114951027
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1114984804
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1124024013
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1124133038
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1124382650
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1124403209
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1124463609
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1124522107
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1124625124
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1134186927
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1134327745
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1134413057
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1134532468
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1134615669
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1144045311
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1144320706
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1144458399
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1144509712
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1144535741
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1144773136
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1144960261
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1154302057
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1154303808
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1154372332
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1154491793
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1154589422
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1154700094
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1164088084
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1164294815
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1164402616
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1164469813
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1164479622
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1164714697
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1164955001
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1174048656
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1174504351
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1174561484
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1174647036
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1174687495
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1184615361
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1184661878
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1184680860
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1194106369
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1194219477
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1194705087
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1194798389
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1194902437
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1194924209
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1194927509
    Cardiology · Boston, MA
    207RC0000X
Previous provider recordsNext provider records

Back to Massachusetts provider summary

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
—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→