Clarence Lau
Pharmacist · San Francisco, CA
Clarence Lau is a pharmacist with a practice address in San Francisco, California, and NPI 1528345535, issued on Nov 4, 2011. Check the license (California 42343, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Clarence Lau
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 42343 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3931 Alemany Blvd Ste 2001, San Francisco, CA 94132
- Phone
- (650) 757-5175
- Enumerated
- Nov 4, 2011
- Record last updated
- Nov 4, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (650) 757-5180
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 3931 Alemany Blvd Ste 2001
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Inez LewisPharmacist1083990436
Verify Clarence Lau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 42343Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Clarence Lau among 32,533 pharmacist records in California
Clarence Lau is one of 32,533 pharmacist records with a practice address in California. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2011, is newer than 18% of them.
- NPI issued2011 · 18% of these records are older, 72% newer
- In a Medicare fileNo · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2011 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,180 pharmacist records list a practice address in San Francisco
They are 1,180 of the 38,143 NPPES records with a practice address in San Francisco, and 32,533 pharmacist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 32,533 in California → Every provider in San Francisco → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Calvin Chan, PHARM. D.San Francisco, CA 941321639483324
- Wayzel Fuller, PHARMD.San Francisco, CA 941321598033797
- Lien Ho, PHARMDSan Francisco, CA 941321124087341
- Heather Isekawa, PHARM DSan Francisco, CA 941321376815860
- Benson Jen, PHARMDSan Francisco, CA 941321437128105
- Albert Lau, RPHSan Francisco, CA 941321679855282
- Inez LewisSan Francisco, CA 941321083990436
- Jennifer Liaw, PHARMDSan Francisco, CA 941321164734760
Common questions
What is Clarence Lau's NPI number?
Clarence Lau's National Provider Identifier (NPI) is 1528345535, issued on Nov 4, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Clarence Lau located?
The NPPES record lists a practice address at 3931 Alemany Blvd Ste 2001, San Francisco, CA, 94132. Phone: (650) 757-5175. Providers update this record themselves, so call before visiting.
How can I verify Clarence Lau's license?
NPPES lists California license number 42343, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.