N
Definition
A unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
Overview
Why it Matters
You cannot submit a HIPAA-compliant claim without an NPI.
How it Works
You apply via NPPES. The number stays with the provider for life.
Code Comparison
Comparison: NPI vs. Tax ID (EIN)
EIN: Identifies the business to the IRS (Tax).
NPI: Identifies the provider to the Healthcare System (Billing).
Common Questions
- One NPI for Multiple Fleets: If you have fleets in different states, using one NPI can cause claims to hit the wrong Medicaid state agency.
- Get a "Type 2" (Organizational) NPI, not a "Type 1" (Individual) NPI for your business.
Sources
NPPES - NPI Registry