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/Oncology (Medical)/Page 41

Provider directory · By specialty

Oncology (Medical) provider records · page 41

CMS NPPES Oncology (Medical) 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/oncology/page-41

Showing 2,881-2,952 of 7,286 source-backed NPI records for Oncology (Medical) 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 41 of 102

  • NPI 1790753283
    Oncology (Medical) · Hyannis, MA
    207RX0202X
  • NPI 1881662468
    Oncology (Medical) · Hyannis, MA
    207RX0202X
  • NPI 1922049147
    Oncology (Medical) · Marlborough, MA
    207RX0202X
  • NPI 1417078569
    Oncology (Medical) · Mashpee, MA
    207RX0202X
  • NPI 1306065446
    Oncology (Medical) · Methuen, MA
    207RX0202X
  • NPI 1366468415
    Oncology (Medical) · Milford, MA
    207RX0202X
  • NPI 1699054924
    Oncology (Medical) · Milford, MA
    207RX0202X
  • NPI 1831105162
    Oncology (Medical) · Milton, MA
    207RX0202X
  • NPI 1972542975
    Oncology (Medical) · Natick, MA
    207RX0202X
  • NPI 1477583441
    Oncology (Medical) · Newton, MA
    207RX0202X
  • NPI 1841254679
    Oncology (Medical) · Newton, MA
    207RX0202X
  • NPI 1851368633
    Oncology (Medical) · Newton, MA
    207RX0202X
  • NPI 1134396948
    Oncology (Medical) · Northampton, MA
    207RX0202X
  • NPI 1891778395
    Oncology (Medical) · Northampton, MA
    207RX0202X
  • NPI 1225031354
    Oncology (Medical) · Palmer, MA
    207RX0202X
  • NPI 1396859294
    Oncology (Medical) · Peabody, MA
    207RX0202X
  • NPI 1588655641
    Oncology (Medical) · Peabody, MA
    207RX0202X
  • NPI 1790899656
    Oncology (Medical) · Peabody, MA
    207RX0202X
  • NPI 1194830877
    Oncology (Medical) · Plymouth, MA
    207RX0202X
  • NPI 1477531358
    Oncology (Medical) · Plymouth, MA
    207RX0202X
  • NPI 1962773424
    Oncology (Medical) · Sherborn, MA
    207RX0202X
  • NPI 1003834920
    Oncology (Medical) · Springfield, MA
    207RX0202X
  • NPI 1174751267
    Oncology (Medical) · Springfield, MA
    207RX0202X
  • NPI 1194768424
    Oncology (Medical) · Springfield, MA
    207RX0202X
  • NPI 1215923800
    Oncology (Medical) · Springfield, MA
    207RX0202X
  • NPI 1316985617
    Oncology (Medical) · Springfield, MA
    207RX0202X
  • NPI 1326066200
    Oncology (Medical) · Springfield, MA
    207RX0202X
  • NPI 1427016484
    Oncology (Medical) · Springfield, MA
    207RX0202X
  • NPI 1518928431
    Oncology (Medical) · Springfield, MA
    207RX0202X
  • NPI 1891713715
    Oncology (Medical) · Springfield, MA
    207RX0202X
  • NPI 1033190343
    Oncology (Medical) · Taunton, MA
    207RX0202X
  • NPI 1124218268
    Oncology (Medical) · Waltham, MA
    207RX0202X
  • NPI 1336371012
    Oncology (Medical) · Waltham, MA
    207RX0202X
  • NPI 1720101629
    Oncology (Medical) · Weston, MA
    207RX0202X
  • NPI 1194163469
    Oncology (Medical) · Weymouth, MA
    207RX0202X
  • NPI 1295834406
    Oncology (Medical) · Weymouth, MA
    207RX0202X
  • NPI 1306251178
    Oncology (Medical) · Weymouth, MA
    207RX0202X
  • NPI 1306370168
    Oncology (Medical) · Weymouth, MA
    207RX0202X
  • NPI 1336438522
    Oncology (Medical) · Weymouth, MA
    207RX0202X
  • NPI 1578912721
    Oncology (Medical) · Weymouth, MA
    207RX0202X
  • NPI 1588652093
    Oncology (Medical) · Weymouth, MA
    207RX0202X
  • NPI 1023175593
    Oncology (Medical) · Worcester, MA
    207RX0202X
  • NPI 1477556587
    Oncology (Medical) · Worcester, MA
    207RX0202X
  • NPI 1962564153
    Oncology (Medical) · Worcester, MA
    207RX0202X
  • NPI 1316017676
    Oncology (Medical) · Annapolis, MD
    207RX0202X
  • NPI 1649219155
    Oncology (Medical) · Annapolis, MD
    207RX0202X
  • NPI 1760424352
    Oncology (Medical) · Annapolis, MD
    207RX0202X
  • NPI 1932355401
    Oncology (Medical) · Annapolis, MD
    207RX0202X
  • NPI 1003253360
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1003845132
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1003851577
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1003863267
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1023051000
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1033445945
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1043340292
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1053516401
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1053536508
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1063450989
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1073803425
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1104035971
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1104972835
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1114450871
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1114976065
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1124054549
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1124133210
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1124185236
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1124222468
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1124344692
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1124481429
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1124511092
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1134381692
    Oncology (Medical) · Baltimore, MD
    207RX0202X
  • NPI 1134443948
    Oncology (Medical) · Baltimore, MD
    207RX0202X
Previous provider recordsNext provider records

Back to Oncology (Medical) 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→