Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Winston Canute Vaughan, M.D.

Specialist in Atherton, CA · enumerated 2006.

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

National Provider Identifier

1821182973

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Registry record

Entity type Individual (Type 1)

Name Winston Canute Vaughan

Credential M.D.

Sex Male

Practice address 3351 El Camino Real, Ste 200, Atherton, CA, 94027

Phone (650) 399-4630

Fax (650) 366-4930

Enumeration date Oct 3, 2006

Last updated in NPPES Oct 19, 2015

Taxonomy & licenses

174400000X Specialist Other Service Providers · License G77809 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 1821182973 active?

Yes, as of the latest NPPES snapshot, NPI 1821182973 is active (record last updated 2015-10-19).

How do I verify Winston Vaughan's NPI record?

Cross-check NPI 1821182973 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 2015-10-19.