Billing and insurance

NPI medical abbreviation

NPI means "National Provider Identifier".

Each meaning matched at least two public references (4 in all for NPI), checked October 23, 2026. The table lists them.

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What NPI means

Example

Sample claim field label: "NPI."

A made-up line that shows the abbreviation in place. It is not about any patient and is not an instruction.

Related abbreviations

  • TINtaxpayer identification number
  • CMSCenters for Medicare & Medicaid Services
  • ACAAffordable Care Act
  • ACOaccountable care organization
  • CHIPChildren's Health Insurance Program
  • COBcoordination of benefits

Elsewhere on Rivvi

Questions

What does NPI mean in medical terms?

NPI means "National Provider Identifier".

Where is NPI used?

NPI shows up in billing and claims. Its category here is billing and insurance.

Is NPI on the Joint Commission Do Not Use list?

No. NPI is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.

Source: NCI Thesaurus, including CDISC SDTM terminology (NCI EVS); NLM SPECIALIST Lexicon abbreviations file (LRABR); CMS Acronyms; Federal agency program pages (CMS, Medicare.gov, SSA, IRS, OIG, HHS, DOL, HRSA, FDA, CDC) and healthcare.gov glossary. Data as of October 23, 2026. Last updated October 23, 2026. How we source data. Spotted an error? Send a correction.

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