Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Billy Lau, PHARMD
Pharmacist in Walnut Creek, CA · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1447819149
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Registry record
Entity type Individual (Type 1)
Name Billy Lau
Credential PHARMD
Sex Male
Practice address 501 Lennon Ln, Walnut Creek, CA, 94598
Phone (925) 926-7557
Enumeration date Jun 7, 2019
Last updated in NPPES Nov 24, 2021
Taxonomy & licenses
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy.
About the PHARMD 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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Billy Lau?
Billy Lau is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Sarah Woo Pharmacist · Walnut Creek, CA NPI 1972604924 Munira Hirani Pharmacist · Walnut Creek, CA NPI 1134219694 Sonali Mehta Pharmacist · Walnut Creek, CA NPI 1356403307 Yoko Nguyen Pharmacist · Walnut Creek, CA NPI 1780740324 Oscarine Willems-Baecke Pharmacist · Walnut Creek, CA NPI 1538498696 Adrian Trujillo Pharmacist · Walnut Creek, CA NPI 1144552019 Erin Imai-Chang Pharmacist · Walnut Creek, CA NPI 1619270147 Wajma Hamsafar Pharmacist · Walnut Creek, CA NPI 1184919672
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-24.