Louis Chen
Pharmacist · Rosemead, CA
Louis Chen is a pharmacist with a practice address in Rosemead, California, and NPI 1447512439, issued on Jun 14, 2012. Check the license (California PHY42884, 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
- Louis Chen
- Primary taxonomy
- Pharmacist 183500000X
- License number
- PHY42884 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8150 Garvey Ave Ste 107, Rosemead, CA 91770
- Phone
- (626) 288-8010
- Enumerated
- Jun 14, 2012
- Record last updated
- Jun 28, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (626) 288-8505
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Verify Louis Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PHY42884Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Louis Chen among 32,533 pharmacist records in California
Louis Chen 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 2012, is newer than 28% of them.
- NPI issued2012 · 28% of these records are older, 68% 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 updated2012 · 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).
57 pharmacist records list a practice address in Rosemead
They are 57 of the 839 NPPES records with a practice address in Rosemead, 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 Rosemead → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Peter Chan, PHARMDRosemead, CA 917701942447826
- Nguyen Chiem, R PHRosemead, CA 917701952398992
- Quyen Hoang, PHARM.D.Rosemead, CA 917701821209529
- Barbara Hon, PHARM. DRosemead, CA 917701750682597
- Ching-Lung Hung, R.P.H.Rosemead, CA 917701407177074
- Gilbert KoayRosemead, CA 917701104192574
- Lan Luu, PHARM.D.Rosemead, CA 917701770803124
- Nga Nguyen, RPHRosemead, CA 917701912993304
Common questions
What is Louis Chen's NPI number?
Louis Chen's National Provider Identifier (NPI) is 1447512439, issued on Jun 14, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Louis Chen located?
The NPPES record lists a practice address at 8150 Garvey Ave Ste 107, Rosemead, CA, 91770. Phone: (626) 288-8010. Providers update this record themselves, so call before visiting.
How can I verify Louis Chen's license?
NPPES lists California license number PHY42884, 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.