Regulations last checked for updates: Feb 06, 2026

Title 42 - Public Health last revised: Feb 02, 2026
§ 455.440 - National Provider Identifier.

The State Medicaid agency must require all claims for payment for items and services that were ordered or referred to contain the National Provider Identifier (NPI) of the physician or other professional who ordered or referred such items or services.

authority: 42 U.S.C. 1302.
source: 43 FR 45262, Sept. 29, 1978, unless otherwise noted.
cite as: 42 CFR 455.440