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Provider Transaction Access Number

PTAN
provider
Updated 5/15/2026

Definition

A unique identifier assigned by CMS to Medicare providers enrolled in the Medicare program. Used to track Medicare billing history and verify provider enrollment status. Required for Medicare claims submission and used alongside NPI for provider identification in Medicare data systems.

Standard Abbreviation

PTAN

Category

provider

Database Usage

-- Example column naming
CREATE TABLE claims (
  clm_id VARCHAR(50),
  ptan INTEGER,  -- Provider Transaction Access Number (count/integer value)
  ...
);

-- Example in SELECT
SELECT
  clm_id,
  ptan as provider_transaction_access_number
FROM claims;

Example database column name

ISO-11179 snake_case standard

-- Recommended column name
ptan

-- Example DDL
CREATE TABLE healthcare_data (
  record_id   VARCHAR(50)   NOT NULL,
  ptan         INTEGER,  -- Provider Transaction Access Number (count/integer value)
  created_dt  TIMESTAMP     NOT NULL DEFAULT NOW()
);

Column names follow the ISO-11179 naming convention: lowercase, underscore-separated, using the standard abbreviation as a prefix where applicable.

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.

Common uses in healthcare data

  • Provider data management and credentialing workflows
  • Network adequacy analysis and directory accuracy
  • NPI validation and NPPES registry reconciliation
  • Provider master data management (MDM)
  • Payer-provider contract and fee schedule management
  • Epic SER provider master and Cerner provider registry reconciliation pipelines
  • Snowflake provider dimension table design with SCD Type 2 historical tracking
  • Databricks NPPES data pipeline for weekly registry refresh and provider MDM updates

Related Healthcare Standards

NPPES / CMS NPI Registry

The National Plan and Provider Enumeration System — the source of record for all NPI assignments and provider demographic data.

NUCC Health Care Provider Taxonomy

Defines the taxonomy codes used to classify provider specialty and entity type in claims and credentialing workflows.

CAQH ProView

The industry-standard credentialing data source used by commercial payers for primary source verification of provider credentials.

Data Quality Considerations

  • NPI numbers fail the Luhn check-digit test in approximately 1–2% of raw feeds — implement Luhn validation as a mandatory data quality gate before loading provider records into Epic or Cerner integration tables.
  • Provider taxonomy codes (NUCC) are updated annually — maintain a versioned reference table with effective dates and validate incoming codes against the current NUCC taxonomy file in your Snowflake provider master.
  • Provider address data degrades rapidly: CMS estimates 15–20% of NPPES addresses become outdated within 12 months — schedule quarterly NPPES reconciliation jobs in Databricks to refresh your provider master data.

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