provider taxonomy
prvdr_taxDefinition
ISO-11179 Definition
The complete NUCC Health Care Provider Taxonomy classification assigned to a healthcare provider in the CMS NPPES NPI registry, defining provider type, classification, and area of specialization in a standardized hierarchical code structure. Providers may have multiple taxonomy codes reflecting their training and scope of practice. The primary taxonomy code drives claims adjudication, fee schedule assignment, and network adequacy measurement.
CMS uses taxonomy codes to validate that Medicare and Medicaid claims are submitted by appropriately classified providers for the billed services. Healthcare data teams maintain prvdr_tax in provider master data tables, implement taxonomy-based claims editing rules, and use taxonomy classifications in network gap analysis to identify specialties with insufficient provider access in specific geographic service areas for health plan network adequacy filings.
Standard Abbreviation
prvdr_tax
Category
Production DDL — DIM_PROVIDER
CREATE OR REPLACE TABLE DIM_PROVIDER (
prvdr_key INTEGER NOT NULL -- surrogate key,
prvdr_npi VARCHAR(10) -- NPI number,
prvdr_tin VARCHAR(10) -- tax ID number,
prvdr_first_nm VARCHAR(100) -- first name,
prvdr_last_nm VARCHAR(100) -- last name,
prvdr_org_nm VARCHAR(255) -- organization name,
prvdr_typ_cd VARCHAR(20) -- provider type code,
prvdr_spclty_cd VARCHAR(10) -- specialty code,
prvdr_tax VARCHAR(10) -- taxonomy code,
prvdr_state_cd CHAR(2) -- state code,
prvdr_zip_cd VARCHAR(10) -- zip code,
prvdr_ntwk_sts VARCHAR(10) -- network status,
prvdr_accpt_pt_ind CHAR(1) -- accepting patients,
prvdr_excl_ind CHAR(1) -- exclusion indicator,
load_dt TIMESTAMP_NTZ NOT NULL -- load timestamp
);
Standard Snowflake DDL for the canonical provider table. Convert to BigQuery or Databricks →
Why This Term Matters
Provider data management is one of the most operationally complex data domains in healthcare because providers move, merge, and update their credentials continuously. A data engineer who understands provider terminology can build NPI validation, credentialing, and network adequacy pipelines that keep provider directories accurate and prevent claim rejections. Stale or incorrect provider data is a leading cause of prior authorization delays and CMS compliance findings.
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