Louis Duy Huynh, PHARMD
Pharmacist · San Diego, CA
Louis Duy Huynh, PHARMD is a pharmacist with a practice address in San Diego, California, and NPI 1740777903, issued on Apr 13, 2018. Check the license (California 70173, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Louis Duy Huynh
- Credential
- PHARMD
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 70173 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5703 Streamview Dr, San Diego, CA 92105
- Phone
- (619) 228-5906
- Enumerated
- Apr 13, 2018
- Record last updated
- Apr 13, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Verify Louis Duy Huynh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 70173Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs
101 Medicare Part D claims for 70 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Shingrix58 claims
- Arexvy21 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Louis Duy Huynh among 32,533 pharmacist records in California
Louis Duy Huynh, PHARMD 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. Its NPI, issued in 2018, is newer than 61% of them.
- NPI issued2018 · 61% of these records are older, 33% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2018 · 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).
1,555 pharmacist records list a practice address in San Diego
They are 1,555 of the 52,937 NPPES records with a practice address in San Diego, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in San Diego → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Farah Alaziz, RPHSan Diego, CA 921051235760331
- Kiesen BhagaSan Diego, CA 921051487969796
- Yumi Fukukura, RPHSan Diego, CA 921051467769661
- Ryan Chun Wai LaiSan Diego, CA 921051295303428
- Antoinette Lieu, PHARMDSan Diego, CA 921051013227479
- Vincent NguyenSan Diego, CA 921051902348394
- Nimmi PatelSan Diego, CA 921051104093343
- Thu Truong, PHARM DSan Diego, CA 921051801906979
Common questions
What is Louis Duy Huynh, PHARMD's NPI number?
Louis Duy Huynh, PHARMD's National Provider Identifier (NPI) is 1740777903, issued on Apr 13, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Louis Duy Huynh, PHARMD located?
The NPPES record lists a practice address at 5703 Streamview Dr, San Diego, CA, 92105. Phone: (619) 228-5906. Providers update this record themselves, so call before visiting.
How can I verify Louis Duy Huynh, PHARMD's license?
NPPES lists California license number 70173, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Louis Duy Huynh, PHARMD prescribe under Medicare Part D?
In 2024, Louis Duy Huynh, PHARMD had 101 Medicare Part D claims for 70 beneficiaries; the average among pharmacist prescribers was 119. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.