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Provider index

Browse by specialty

55 NPPES taxonomy classifications, drawn from the CMS National Provider Identifier registry. Each specialty record reports enrollment counts, geographic distribution, and quality-program scores where the federal source supports them.

55 specialties · Source: CMS NPPES taxonomy · May 2026 snapshot
55Specialty classificationsNPPES taxonomy types indexed
ActiveProduction source registryRegistry status is not completeness, load status, or freshness

All specialties

Alphabetical. Each link opens that specialty’s record. The 14 specialties Fonteum currently tracks show a live NPPES provider count; the rest are on the coverage roadmap.

Source: CMS NPPES taxonomy classification·Snapshot: May 2026 snapshot·Method: NUCC Health Care Provider Taxonomy · methodology v1

How to read this index

Sourced, dated, free to cite

  1. CMS National Provider Identifier (NPI) registry / NPPES — provider taxonomy classification (NUCC Health Care Provider Taxonomy).

What’s on file, by the numbers

Platform snapshot · 2026-08-29

13.4Mproviders & companiesProviders, organizations, owners, and facilities on file
26.2Msource-linked factsSource-linked field facts in the dated platform snapshot
90sources with dataDistinct snapshot source IDs with at least one positive record count
19fresh sourcesDistinct source IDs whose latest positive-data snapshot falls within 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

Integrated, with-data, and fresh-observation counts are separate. No platform-wide source-completeness count is published. Completeness is source-specific and must be evaluated against the named source's expected scope. State coverage is a separate jurisdiction measure.

Source authority is record-specific

Use the issuer named on the record.

Fonteum spans federal, state, and global public publishers. A source page or returned record identifies its issuer and dataset where that metadata is available. A platform registry count does not assign every page to one authority or establish loaded, fresh, or complete coverage.

Browse source records and their stated limitations →

Reproducible by design

Inspect the evidence each published figure actually supplies.

Source and date

Research pages expose the named public file and observation date where those fields are available. Source-file SHA-256 coverage is separate; facts do not currently link deterministically to signatures.

Available derivation

Studies with a retained release and committed derivation link the SQL or method used. Other studies state the evidence and reproduction limits they actually have.

Daily observations

Dated table row-count observations can 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 →

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