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Provider directory

provider records

Every record traces to a federal source.

Search by NPI, specialty, or state. Each field carries its source name, snapshot date, methodology version, and limitation. No pay-to-rank. No editorial curation of who appears.

Look up an NPI →
23federal source familiesPublic-record families powering the provider graph.
27registered sourcesSources with a detail page on /sources.
14dataset pagesLive at /data with schema + download.
Look up a provider

Find a provider by NPI.

Enter a 10-digit National Provider Identifier to see CMS NPPES enrollment data, MIPS quality scores, and OIG exclusion status — each field shown with its source and date.

NPI lookup tool →
Browse the directory

Browse providers by specialty or state.

  • Specialty index

    By specialty

    Every NPPES taxonomy specialty, from allergy & immunology to wound care — each with its own source-provenanced hub.

    Browse specialties →

  • State index

    By state

    All 50 states and the District of Columbia, drawn from the national provider registry.

    Browse states →
Top specialties
dermatologypsychiatrycardiologyobgynpediatricsneurologyoncologyorthopedic surgeryophthalmologygastroenterologyurologyotolaryngologyplastic surgerypulmonologyendocrinologyrheumatologynephrologyinfectious diseasegeriatricschiropractic
Top states
californiatexasfloridanew yorkpennsylvaniaillinoisohiogeorgianorth carolinamichigannew jerseyvirginiawashingtonarizonamassachusettstennesseeindianamissourimarylandwisconsin
Data infrastructure

How the provider graph is built.

  • /data → Dataset catalog with schema and downloads.
  • /sources → The source registry: tier, refresh cadence, limitations.
  • /methodology → Network-wide sourcing and corrections policy.
  • /chain → Snapshot integrity and witness co-signatures.

Snapshot: 2026-05-25 · Source: CMS NPPES weekly full-replacement file · source registry

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

© 2026 Fonteum, Inc. All rights reserved.

The U.S. healthcare graph AI can cite — every fact carries its source.

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