Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stuart Donald Slater

Peer Specialist in Fullerton, CA · enumerated 2019.

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

National Provider Identifier

1851856751

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Registry record

Entity type Individual (Type 1)

Name Stuart Donald Slater

Sex Male

Practice address 1501 E Orangethorpe Ave Ste 200, Fullerton, CA, 92831

Phone (714) 254-8473

Enumeration date Feb 5, 2019

Last updated in NPPES Jan 16, 2026

Taxonomy & licenses

175T00000X Peer Specialist Other Service Providers · License MPSS-2OIVZD (CA) Primary

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

Is NPI 1851856751 active?

Yes, as of the latest NPPES snapshot, NPI 1851856751 is active (record last updated 2026-01-16).

How do I verify Stuart Slater's NPI record?

Cross-check NPI 1851856751 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-16.