StacksVerified U.S. regulatory reference

45 CFR §162.412

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)A health plan must use the NPI of any health care provider (or subpart(s), if applicable) that has been assigned an NPI to identify that health care provider on all standard transactions where that health care provider's identifier is required.
  2. (b)A health plan may not require a health care provider that has been assigned an NPI to obtain an additional NPI.