NPI Type 1 vs. NPI Type 2: Structuring Individual and Group Provider Identifiers
Understand when your practice needs an Organizational NPI (Type 2) in addition to an Individual NPI (Type 1) and how to configure taxonomy codes.
Individual (Type 1) vs. Organization (Type 2) NPIs
Solo practitioners who incorporate as an LLC or PLLC often assume their personal NPI Type 1 is sufficient for billing under their business Tax ID (EIN). In reality, payers require an Organizational NPI (Type 2) to represent the billing entity (Box 33 on the CMS-1500) while the Individual NPI (Type 1) identifies the rendering clinician (Box 24J).
Selecting the Right Taxonomy Code
Your primary taxonomy code in NPPES must accurately reflect your board certification, licensure, and clinic type. Mismatched taxonomies between NPPES, CAQH, and payer enrollment files are a frequent source of claim rejections.
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