Steven Diep, PHARM.D.
Pharmacist · El Monte, CA
Steven Diep, PHARM.D. is a pharmacist with a practice address in El Monte, California, and NPI 1053863423, issued on Nov 1, 2016. Check the license (California 75566, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Steven Diep
- Credential
- PHARM.D.
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 75566 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9533 Cortada St, El Monte, CA 91733
- Phone
- (626) 500-7947
- Enumerated
- Nov 1, 2016
- Record last updated
- Nov 1, 2016 (not updated in 10 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 Steven Diep in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 75566Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average pharmacist in 2024
42 Medicare Part D claims for 28 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Warfarin Sodium42 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.
Steven Diep among 32,533 pharmacist records in California
Steven Diep, PHARM.D. 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 2016, is newer than 47% of them.
- NPI issued2016 · 47% of these records are older, 47% 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 updated2016 · 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).
71 pharmacist records list a practice address in El Monte
They are 71 of the 1,528 NPPES records with a practice address in El Monte, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in El Monte → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Claire Attia, RPHSan Dimas, CA 917331740402270
- Vivian Chiu, PHARM.D.El Monte, CA 917331639574205
- Cindy HanEl Monte, CA 917331861864092
- Cammy Han-Young, PHARM.DS El Monte, CA 917331720418478
- Mohammad HassaniEl Monte, CA 917331497722557
- Nicole Hau, RPHSouth El Monte, CA 917331477030377
- Bella Ho, PHARMDSouth El Monte, CA 917331053851899
- Ana IongEl Monte, CA 917331831561885
Common questions
What is Steven Diep, PHARM.D.'s NPI number?
Steven Diep, PHARM.D.'s National Provider Identifier (NPI) is 1053863423, issued on Nov 1, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Steven Diep, PHARM.D. located?
The NPPES record lists a practice address at 9533 Cortada St, El Monte, CA, 91733. Phone: (626) 500-7947. Providers update this record themselves, so call before visiting.
How can I verify Steven Diep, PHARM.D.'s license?
NPPES lists California license number 75566, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Steven Diep, PHARM.D. prescribe under Medicare Part D?
In 2024, Steven Diep, PHARM.D. had 42 Medicare Part D claims for 28 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.