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NUCC Taxonomy Code Decoder
x402
NUCC Taxonomy Code Decoder is a paid API for AI agents from 2s.io, paid per call via x402, $0.009/call, status unknown (last checked 2026-09-14).
Resolves a NUCC Health Care Provider Taxonomy code into its human-readable specialty grouping, classification, specialization, display name, and provider section (Individual vs Non-Individual).
Price / call$0.009
Success—
StatusUnknown
How this service works
Resolve a NUCC Health Care Provider Taxonomy code -- the specialty code returned by medical.npi and printed on every NPPES record -- into its human specialty: grouping (top level, e.g. "Allopathic & Osteopathic Physicians"), classification (e.g. "Anesthesiology"), specialization, the official display name, and the section (Individual vs Non-Individual). The decode step every claims, credentialing, and provider-directory agent needs to turn an opaque 10-char taxonomy code into a readable specialty. Data: NUCC code set (public domain), bundled and version-pinned. Note: the CMS Medicare 2-char physician-specialty crosswalk is published only as a PDF, so medicareSpecialty is returned null (DEFERRED) rather than guessed.
Output
Returns the NUCC taxonomy code's human-readable grouping (e.g. 'Allopathic & Osteopathic Physicians'), classification (e.g. 'Anesthesiology'), specialization, official display name, and section (Individual vs Non-Individual). The medicareSpecialty crosswalk field is returned as null since CMS only publishes that mapping as a PDF.
Example use cases
Example prompt
“What specialty does the NUCC taxonomy code 207L00000X represent? Give me the full grouping, classification, and display name.”
Technical details
Endpoint
GEThttps://2s.io/api/medical/taxonomy-specialtyWhen to prefer
Use this endpoint when you have a raw NUCC taxonomy code (e.g. from an NPI lookup, NPPES record, or insurance claim) and need to display or process its human-readable specialty. Ideal for claims processing, provider credentialing, provider directory enrichment, and any pipeline that ingests raw NPI data. Prefer this over building your own NUCC code table — the dataset is version-pinned and maintained.
Side effects
- Invalid or unrecognized taxonomy code returns an error or empty result
- Missing required 'code' query parameter returns a 400 bad request
- Malformed code (wrong length or characters) may return no match
- Network or service unavailability returns 5xx error
- Payment failure via x402 protocol prevents access
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"code": {
"type": "string"
},
"section": {
"type": "string"
},
"grouping": {
"type": "string"
},
"displayName": {
"type": "string"
},
"classification": {
"type": "string"
},
"specialization": {},
"medicareSpecialty": {}
}
}
},
"total": {
"type": "integer"
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
}
}
}
},
"example": {
"ok": true,
"items": [
{
"code": "207L00000X",
"section": "Individual",
"grouping": "Allopathic & Osteopathic Physicians",
"displayName": "Anesthesiology Physician",
"classification": "Anesthesiology",
"specialization": null,
"medicareSpecialty": null
}
],
"total": 1,
"source": {
"url": "https://www.nucc.org/",
"license": "Public domain (NUCC).",
"provider": "NUCC Health Care Provider Taxonomy code set"
}
}
}Tags
x402
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