NPI Portal NPI Lookup & Verification

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

Diane L Jackson

Registered Dietitian in Everett, WA · enumerated 2006.

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

National Provider Identifier

1891866034

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Registry record

Entity type Individual (Type 1)
Name Diane L Jackson
Sex Female
Practice address Everett, WA, 98201
Phone (425) 259-0966
Enumeration date Nov 10, 2006
Last updated in NPPES Jul 16, 2014

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

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License DI00001044 (WA) Primary

Other identifiers

Identifier Type State Issuer
DI00001044 Other WA 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.

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Frequently asked questions

How do I verify Diane Jackson's NPI record?
Cross-check NPI 1891866034 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1891866034 active?
Yes, as of the latest NPPES snapshot, NPI 1891866034 is active (record last updated 2014-07-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-16.