42 CFR § 455.440 - National Provider Identifier.

---
identifier: "/us/cfr/t42/s455.440"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "42 CFR § 455.440 - National Provider Identifier."
title_number: 42
title_name: "Public Health"
section_number: "455.440"
section_name: "National Provider Identifier."
chapter_name: "CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "C"
subchapter_name: "MEDICAL ASSISTANCE PROGRAMS"
part_number: "455"
part_name: "PROGRAM INTEGRITY: MEDICAID"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 1302."
regulatory_source: "43 FR 45262, Sept. 29, 1978, unless otherwise noted."
cfr_part: "455"
---


# 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.