NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Diane Marie Nadeau, RN CDOE

Registered Nurse in Ashaway, RI · enumerated 2022.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1407581499

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Registry record

Entity type Individual (Type 1)
Name Diane Marie Nadeau
Credential RN CDOE
Sex Female
Practice address Ashaway, RI, 02804
Enumeration date Jul 22, 2022
Last updated in NPPES Jul 22, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 20280 (RI) Secondary
163W00000X Registered Nurse Nursing Service Providers · License 177864 (CT) Primary

Other identifiers

Identifier Type State Issuer
20280 Other RI RN LICENSE
177864 Other CT RN LICENSE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1407581499 active?
Yes, as of the latest NPPES snapshot, NPI 1407581499 is active (record last updated 2022-07-22).
How do I verify Diane Nadeau's NPI record?
Cross-check NPI 1407581499 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-22.