NPI Portal NPI Lookup & Verification

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

Tiffany Wai Ying Luk

Pharmacist in Mill Valley, CA · enumerated 2014 · practices at Walgreen Co.

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

National Provider Identifier

1043619778

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Registry record

Entity type Individual (Type 1)
Name Tiffany Wai Ying Luk
Sex Female
Practice address Mill Valley, CA, 94941
Enumeration date Aug 19, 2014
Last updated in NPPES Aug 19, 2014

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

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 70867 (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

How do I verify Tiffany Luk's NPI record?
Cross-check NPI 1043619778 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1043619778 active?
Yes, as of the latest NPPES snapshot, NPI 1043619778 is active (record last updated 2014-08-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-19.