Samantha Chieu, PHARM.D
Pharmacist · Santa Clarita, CA
Samantha Chieu, PHARM.D is a pharmacist with a practice address in Santa Clarita, California, and NPI 1710486097, issued on Feb 1, 2018. Check the license (California 77639, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Samantha Chieu
- Credential
- PHARM.D
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 77639 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18649 Via Princessa, Santa Clarita, CA 91387
- Phone
- (661) 250-2845
- Enumerated
- Feb 1, 2018
- Record last updated
- Dec 27, 2022
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 18649 Via Princessa
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hanan Dimitry, RPHPharmacist1952685141
- Anahit Mestchyan, PHARMDPharmacist1912519661
- Nasim Pedarsani, ODOptometrist1306916978
Verify Samantha Chieu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 77639Check 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, 95% of the cost of the top drugs
125 Medicare Part D claims for 112 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 98% 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.
- Abrysvo50 claims
- Shingrix48 claims
- Boostrix Tdap19 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.
Samantha Chieu among 32,533 pharmacist records in California
Samantha Chieu, 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 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 updated2022 · 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).
79 pharmacist records list a practice address in Santa Clarita
They are 79 of the 1,835 NPPES records with a practice address in Santa Clarita, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Santa Clarita → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Sara Choi, PHARMDSanta Clarita, CA 913871376910919
- Hanan Dimitry, RPHSanta Clarita, CA 913871952685141
- Delphine HicksCanyon Country, CA 913871588970610
- Abdallah IshacCanyon Country, CA 913871063730901
- Kimberley Kelley, PHARMDCanyon Country, CA 913871891110417
- Adam Levine, PHARM DSanta Clarita, CA 913871598051013
- Buenaventura Medina, PHARM.DSanta Clarita, CA 913871881980134
- Thai NguyenCanyon Country, CA 913871578073268
Common questions
What is Samantha Chieu, PHARM.D's NPI number?
Samantha Chieu, PHARM.D's National Provider Identifier (NPI) is 1710486097, issued on Feb 1, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Samantha Chieu, PHARM.D located?
The NPPES record lists a practice address at 18649 Via Princessa, Santa Clarita, CA, 91387. Phone: (661) 250-2845. Providers update this record themselves, so call before visiting.
How can I verify Samantha Chieu, PHARM.D's license?
NPPES lists California license number 77639, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Samantha Chieu, PHARM.D prescribe under Medicare Part D?
In 2024, Samantha Chieu, PHARM.D had 125 Medicare Part D claims for 112 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.