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

Provider directory · By state

Healthcare providers in Massachusetts

CMS NPPES registration records for Massachusetts, aggregated across the 14 medical specialties Fonteum currently tracks, with CMS Care Compare facility counts and HRSA HPSA shortage-area context.

Fonteum tracks 13,099 healthcare providers in Massachusetts across the 14 medical specialties it ingests from the CMS NPPES NPI Registry, alongside 929 Medicare-certified facilities across 6 care families from CMS Care Compare, with HRSA shortage-area and OIG exclusion context. Displayed figures include available source, snapshot-date, and methodology-version metadata. Snapshot 2026-05-06 – 2026-05-07.

Source: CMS NPPES NPI Registry — supply by state·Snapshot: 2026-05-06 – 2026-05-07·Method: nppes-supply-by-state/v2026.05·ID: nppes-supply/massachusetts
13,099Providers across 14 tracked specialtiesCMS NPPES · as of 2026-05-06 – 2026-05-07
929Medicare-certified facilitiesCMS Care Compare · 2026-05-07
170Active HRSA HPSA shortage areasDesignated · HRSA

Provider supply by specialty in Massachusetts

Active-provider counts for the 14 specialties Fonteum ingests from the CMS NPPES NPI Registry, with per-100,000 density (U.S. Census PEP V2025) and the national density rank of 51 jurisdictions. This covers the tracked specialties only — not every NPPES provider in Massachusetts.

Provider supply by specialty in Massachusetts, from the CMS NPPES NPI Registry
SpecialtyProvidersPer 100kDensity rank
Psychiatry2,95041.3#2
Chiropractic1,58622.2#36
Pediatrics1,41119.8#2
Cardiology1,29218.1#2
Neurology1,08615.2#2
Orthopedic Surgery83911.8#10
Ophthalmology82611.6#2
Gastroenterology71710.0#2
Dermatology7029.8#2
Oncology (Medical)4466.2#1
Otolaryngology (ENT)4085.7#2
Urology3875.4#5
Obstetrics & Gynecology2914.1#2 · below threshold
Plastic Surgery1582.2#11

Source:CMS NPPES·Snapshot 2026-05-06 – 2026-05-07

Provider records in Massachusetts

Showing 1-72 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 1 of 182

  • NPI 1376696328
    Cardiology · Andover, MA
    207RC0000X
  • NPI 1629177639
    Cardiology · Arlington, MA
    207RC0000X
  • NPI 1689763567
    Cardiology · Arlington, MA
    207RC0000X
  • NPI 1104814896
    Cardiology · Attleboro, MA
    207RC0000X
  • NPI 1285744771
    Cardiology · Attleboro, MA
    207RC0000X
  • NPI 1376651372
    Cardiology · Attleboro, MA
    207RC0000X
  • NPI 1558328419
    Cardiology · Attleboro, MA
    207RC0000X
  • NPI 1568982106
    Cardiology · Attleboro, MA
    207RC0000X
  • NPI 1598200404
    Cardiology · Attleboro, MA
    207RC0000X
  • NPI 1700994720
    Cardiology · Attleboro, MA
    207RC0000X
  • NPI 1871052985
    Cardiology · Attleboro, MA
    207RC0000X
  • NPI 1184739955
    Cardiology · Ayer, MA
    207RC0000X
  • NPI 1467441857
    Cardiology · Ayer, MA
    207RC0000X
  • NPI 1144240789
    Cardiology · Beverly, MA
    207RC0000X
  • NPI 1174724249
    Cardiology · Beverly, MA
    207RC0000X
  • NPI 1285669440
    Cardiology · Beverly, MA
    207RC0000X
  • NPI 1376962639
    Cardiology · Beverly, MA
    207RC0000X
  • NPI 1770619363
    Cardiology · Beverly, MA
    207RC0000X
  • NPI 1821014457
    Cardiology · Beverly, MA
    207RC0000X
  • NPI 1841215522
    Cardiology · Beverly, MA
    207RC0000X
  • NPI 1003002452
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1003007121
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1003101148
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1003180431
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1003251281
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1003426347
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1003551433
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1003892878
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1003898461
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1003921636
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013151422
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013279454
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013301928
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013342518
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013364371
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013375336
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013503408
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013536143
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013935436
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013942176
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013975622
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013986801
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1013990647
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1023037611
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1023370467
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1023470416
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1023538238
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1033161401
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1033176466
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1033349089
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1033349592
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1033380373
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1033609318
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1043265978
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1043296049
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1043326713
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1043657307
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1053329730
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1053428474
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1053626655
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1053706952
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1063091940
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1063402139
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1063402246
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1063478261
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1063478311
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1063482602
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1063854222
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1063902401
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073203030
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073500997
    Cardiology · Boston, MA
    207RC0000X
  • NPI 1073508693
    Cardiology · Boston, MA
    207RC0000X
Next provider records

Medicare-certified facilities in Massachusetts

929 Medicare-certified facilities operate in Massachusetts across the families Fonteum tracks from CMS Care Compare. Each family links to its facility-level page for Massachusetts.

Medicare-certified facility counts in Massachusetts, from CMS Care Compare
Facility typeFacilities
Nursing homes341
Home health agencies287
Dialysis facilities85
Hospitals84
Hospice providers77
Ambulatory surgical centers55

Source:CMS Care Compare·Snapshot 2026-05-07

Health professional shortage areas in Massachusetts

HRSA currently designates 170 active Health Professional Shortage Areas in Massachusetts — 64 primary care, 55 dental health, and 51 mental health. A HPSA marks a geography, population, or facility with too few clinicians relative to need, scored 0–26 by HRSA.

64Primary care HPSA
55Dental HPSA
51Mental health HPSA

Source:HRSA HPSA·Snapshot 2026-05-06 – 2026-05-07

Provider exclusions and sanctions in Massachusetts

Massachusetts reports 1,384 OIG LEIE federal exclusion records by address state, drawn from the OIG List of Excluded Individuals and Entities (loaded source date: May 8, 2026; checked July 12). State Medicaid exclusion lists are tracked for select states; Massachusetts is covered by the federal OIG list on the sanctions hub. Displayed records link to their source exclusion list when a source URL is available.

1,384OIG LEIE federal exclusionsBy address state · OIG

Provider sanctions hub

Related Massachusetts healthcare data

  • Hospital operating margins in Massachusetts

    CMS HCRIS cost-report margins vs the national average.

  • Obstetrics & Gynecology access gap in Massachusetts

    4.1 per 100k — national density rank #2.

  • Plastic Surgery access gap in Massachusetts

    2.2 per 100k — national density rank #11.

  • Urology access gap in Massachusetts

    5.4 per 100k — national density rank #5.

  • Nursing homes in Massachusetts

    341 Medicare-certified nursing homes on CMS Care Compare.

  • Home health agencies in Massachusetts

    287 Medicare-certified home health agencies on CMS Care Compare.

  • Dialysis facilities in Massachusetts

    85 Medicare-certified dialysis facilities on CMS Care Compare.

  • Hospitals in Massachusetts

    84 Medicare-certified hospitals on CMS Care Compare.

  • Hospice providers in Massachusetts

    77 Medicare-certified hospice providers on CMS Care Compare.

  • Ambulatory surgical centers in Massachusetts

    55 Medicare-certified ambulatory surgical centers on CMS Care Compare.

Frequently asked questions about Massachusetts providers

How many healthcare providers does Fonteum track in Massachusetts?

Fonteum tracks 13,099 providers in Massachusetts across the 14 medical specialties it currently ingests from the CMS NPPES NPI Registry. This is the supply within those tracked specialties, not every NPPES-registered provider in Massachusetts. The snapshot date is 2026-05-06 – 2026-05-07.

Which medical specialty has the most providers in Massachusetts?

Among the 14 tracked specialties, Psychiatry is the largest in Massachusetts with 2,950 providers, or 41.3 per 100,000 residents — a national density rank of #2 of 51. Counts come from the CMS NPPES NPI Registry.

What Medicare-certified facilities are in Massachusetts?

Massachusetts has 929 Medicare-certified facilities across 6 families Fonteum tracks from CMS Care Compare, including nursing homes, hospitals, home health agencies, hospices, dialysis facilities, and ambulatory surgical centers. Each family links to its facility-level Care Compare page for Massachusetts.

Are there provider exclusions or sanctions in Massachusetts?

Massachusetts reports 1,384 OIG LEIE federal exclusion records by address state, drawn from the OIG List of Excluded Individuals and Entities (loaded source date: May 8, 2026; checked July 12). State Medicaid exclusion lists are tracked for select states; Massachusetts is covered by the federal OIG list on the sanctions hub. Displayed records link to their source exclusion list when a source URL is available.

Does Fonteum track shortage areas in Massachusetts?

HRSA currently designates 170 active Health Professional Shortage Areas in Massachusetts — 64 primary care, 55 dental health, and 51 mental health. A HPSA marks a geography, population, or facility with too few clinicians relative to need, scored 0–26 by HRSA.

How current is the Massachusetts provider data?

The Massachusetts provider counts use the CMS NPPES supply-by-state snapshot dated 2026-05-06 – 2026-05-07, under methodology nppes-supply-by-state/v2026.05. That page snapshot is not a claim of current NPPES or Care Compare coverage; source and date fields vary by section.

How Massachusetts provider data is built

Provider counts aggregate the CMS NPPES supply-by-state datasets under methodology nppes-supply-by-state/v2026.05; facility counts read the latest CMS Care Compare snapshots; HPSA and exclusion figures draw from HRSA and OIG / state Medicaid sources. Supported values display the available source name, snapshot date, and methodology version.

NPPES dataset · Methodology · Source registry · Browse by specialty · All states

Fonteum is a US public-records evidence platform spanning healthcare, federal procurement, sanctions and watchlists, federal enforcement, intellectual property, securities filings, and global company registers. Production registry status is reported separately from loaded and fresh coverage. Dated platform counts come from the public platform-stats snapshot; source-file hashes are reported where present, and deterministic fact-to-signature linkage is not claimed.

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→