NUCC Health Care Provider Taxonomy
The Health Care Provider Taxonomy code set — grouping, classification, specialization, and display name per code. The same reference set NPPES uses to tag provider taxonomy. Reference code set; no NPI or entity linkage. Source:
FHIR CodeSystem · Sample record
What a record looks like in the API response.
{
"resourceType": "CodeSystem",
"id": "nucc-taxonomy",
"_source": "nucc-taxonomy",
"_methodology": "nucc-taxonomy/v1",
"concept": [{ "code": "207RA0201X", "display": "Allergy & Immunology Physician" }]
}Every record carries _source, _methodology, a snapshot date, and a confidence tier. All fourteen provenance fields survive export and API delivery.
curl -H "Authorization: Bearer $FONTEUM_KEY" \ "https://api.fonteum.com/fhir/r4/CodeSystem?_source=nucc-taxonomy" \ | jq '._source, ._methodology, .meta.tag'
Fields in this record
What each field in the CodeSystem record means.
Every field below is taken from the live FHIR CodeSystem record above. Provenance fields (_source, _methodology, and the snapshot date) travel with each record through export and API delivery; identity fields key the record across federal datasets; data fields carry the measured values.
| Field | Type | Role |
|---|---|---|
resourceType | string | Identity |
id | string | Identity |
_source | string | Provenance |
_methodology | string | Provenance |
concept | array | Data |
Dataset facts
| Field | Value |
|---|---|
| Agency | |
| Category | Reference data |
| Records | |
| Temporal coverage | 2001–2026 |
| Refresh cadence | Semiannual |
| Freshness SLA | Within 7 days of NUCC release |
| Last synced | 2026-06-14Updated 2026-06-14 |
| FHIR resource | CodeSystem |
| Methodology | nucc-taxonomy/v1 |
| Measured | Grouping, classification, specialization, display name, and section per taxonomy code |
| Upstream source | www.nucc.org → |
Get access
How to reach this dataset.
API access is operator-approved during the pilot. Reviewed within one business day. No charge during the pilot period.