I - Fon Chen, PHARM D
Pharmacist · Azusa, CA
I - Fon Chen, PHARM D is a pharmacist with a practice address in Azusa, California, and NPI 1750601811, issued on Jun 10, 2010. Check the license (California 55003, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- I - Fon Chen
- Credential
- PHARM D
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 55003 CA
Self-reported in NPPES; status is on the state search - Practice location
- 153 E Gladstone St, Azusa, CA 91702
- Phone
- (626) 334-3511
- Enumerated
- Jun 10, 2010
- Record last updated
- Jun 10, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (626) 812-7845
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 153 E Gladstone St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kevin Pham, PHARMACISTPharmacist1295055747
Verify I - Fon 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 55003Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average pharmacist in 2024
11 Medicare Part D claims, 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.
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.
I - Fon Chen among 32,533 pharmacist records in California
I - Fon Chen, 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 2010, is newer than 12% of them.
- NPI issued2010 · 12% of these records are older, 82% 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 updated2010 · 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).
26 pharmacist records list a practice address in Azusa
They are 26 of the 464 NPPES records with a practice address in Azusa, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Azusa → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Mutaz Ahmad, RPHAzusa, CA 917021669874269
- Nitasha AllahabadiAzusa, CA 917021083087670
- Danny DangAzusa, CA 917021407381098
- Parminder GrewalAzusa, CA 917021598329443
- Anthony HangAzusa, CA 917021700312089
- Mona KimAzusa, CA 917021922328558
- Shirley LemAzusa, CA 917021083997068
- Sapna Patel, PHARMDAzusa, CA 917021528352820
Common questions
What is I - Fon Chen, PHARM D's NPI number?
I - Fon Chen, PHARM D's National Provider Identifier (NPI) is 1750601811, issued on Jun 10, 2010. An NPI identifies a provider in billing; it is not a license.
Where is I - Fon Chen, PHARM D located?
The NPPES record lists a practice address at 153 E Gladstone St, Azusa, CA, 91702. Phone: (626) 334-3511. Providers update this record themselves, so call before visiting.
How can I verify I - Fon Chen, PHARM D's license?
NPPES lists California license number 55003, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does I - Fon Chen, PHARM D prescribe under Medicare Part D?
In 2024, I - Fon Chen, PHARM D had 11 Medicare Part D claims; 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.