Chau Ngoc Thanh Phan, PHARM.D
Pharmacist · Garden Grove, CA
Chau Ngoc Thanh Phan, PHARM.D is a pharmacist with a practice address in Garden Grove, California, and NPI 1225682925, issued on Jul 31, 2019. Check the license (California 45046, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Chau Ngoc Thanh Phan
- Credential
- PHARM.D
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 45046 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9191 Westminster Ave Ste 108, Garden Grove, CA 92844
- Phone
- (714) 899-1111
- Enumerated
- Jul 31, 2019
- Record last updated
- Jul 31, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (714) 899-2808
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 9191 Westminster Ave Ste 108
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Yik, PHARMDPharmacist1740158146
Verify Chau Ngoc Thanh Phan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 45046Check 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
40 Medicare Part D claims for 38 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.
- Arexvy34 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.
Industry payments in 2024: $428.25
17 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 6 providers of this specialty with any payment received $273.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Chau Ngoc Thanh Phan among 32,533 pharmacist records in California
Chau Ngoc Thanh Phan, 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 2019, is newer than 67% of them.
- NPI issued2019 · 67% of these records are older, 27% 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 updated2019 · 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).
220 pharmacist records list a practice address in Garden Grove
They are 220 of the 4,572 NPPES records with a practice address in Garden Grove, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Garden Grove → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Mark Choi, RPHGarden Grove, CA 928441598061012
- Nicholas ChoiGarden Grove, CA 928441063830941
- Michelle ChonGarden Grove, CA 928441881945913
- Angelline DaoGarden Grove, CA 928441700416674
- Chris Hoang, PHARM.DGarden Grove, CA 928441104225457
- Kwang Jin HwangGarden Grove, CA 928441700236957
- Christine LeeGarden Grove, CA 928441639689169
- Richard Nguyen, PHARM.D.Garden Grove, CA 928441275954208
Common questions
What is Chau Ngoc Thanh Phan, PHARM.D's NPI number?
Chau Ngoc Thanh Phan, PHARM.D's National Provider Identifier (NPI) is 1225682925, issued on Jul 31, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Chau Ngoc Thanh Phan, PHARM.D located?
The NPPES record lists a practice address at 9191 Westminster Ave Ste 108, Garden Grove, CA, 92844. Phone: (714) 899-1111. Providers update this record themselves, so call before visiting.
How can I verify Chau Ngoc Thanh Phan, PHARM.D's license?
NPPES lists California license number 45046, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Chau Ngoc Thanh Phan, PHARM.D prescribe under Medicare Part D?
In 2024, Chau Ngoc Thanh Phan, PHARM.D had 40 Medicare Part D claims for 38 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.