Built on the authoritative federal record
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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.
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14-tuple provenance
Every rendered fact ties to a source URL, dataset ID, snapshot date, row key, and SHA-256 — the full chain-of-custody record.
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Each study ships the exact query behind its figures, run against the cited federal snapshot. Re-run it yourself.
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Published counts are reconciled against the upstream federal datasets on a daily cadence, with drift logged.
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4.00 active otolaryngologists (ENT) per 100,000 residents — ranked 19 of 51 U.S. states + DC.
The substrate, by the numbers
Plain-text citation block — paste verbatim into a brief, story, or report.
Oregon has 171 active otolaryngologists (ENT) (4.00 per 100,000 residents) — ranked 19 of 51 U.S. states + DC. Source: CMS NPPES NPI Registry + U.S. Census Bureau, snapshot 2026-05-06. Threshold for "underserved" in the parent study: 2.5 per 100,000. Citation: Fonteum Research, /research/otolaryngologist-supply-by-state-2026.