Esther Chang, PHARMD
Pharmacist · Valencia, CA
Esther Chang, PHARMD is a pharmacist with a practice address in Valencia, California, and NPI 1205240561, issued on Jun 16, 2014. Check the license (California 46051, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Esther Chang
- Credential
- PHARMD
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 46051 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27716 Mcbean Pkwy, Valencia, CA 91354
- Phone
- (661) 263-6658
- Enumerated
- Jun 16, 2014
- Record last updated
- Jun 16, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (661) 263-6664
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 27716 Mcbean Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linda Snow, RPHPharmacist1720387301
Verify Esther Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 46051Check 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, 90% of the cost of the top drugs
147 Medicare Part D claims for 133 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 87% 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.
- Shingrix37 claims
- Arexvy35 claims
- Abrysvo27 claims
- Boostrix Tdap26 claims
- Naloxone Hcl19 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.
Esther Chang among 32,533 pharmacist records in California
Esther Chang, 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 2014, is newer than 35% of them.
- NPI issued2014 · 35% of these records are older, 59% 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 updated2014 · 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).
35 pharmacist records list a practice address in Valencia
They are 35 of the 2,083 NPPES records with a practice address in Valencia, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Valencia → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Rissey Abe-Mitsuoka, PHARMDValencia, CA 913541154122380
- Clifford Davis, RPHValencia, CA 913541326427576
- Charles Kim, PHARMDValencia, CA 913541326299801
- Valerie Kruszewski, PHARM DValencia, CA 913541629459540
- Linda Snow, RPHValencia, CA 913541720387301
- Paul WongValencia, CA 913541417490376
- Jaeyoung Yoo, PHARMDValencia, CA 913541669242731
- Chenqing Gu, PHARM. D. RPHSanta Clarita, CA 913551689974172
Common questions
What is Esther Chang, PHARMD's NPI number?
Esther Chang, PHARMD's National Provider Identifier (NPI) is 1205240561, issued on Jun 16, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Esther Chang, PHARMD located?
The NPPES record lists a practice address at 27716 Mcbean Pkwy, Valencia, CA, 91354. Phone: (661) 263-6658. Providers update this record themselves, so call before visiting.
How can I verify Esther Chang, PHARMD's license?
NPPES lists California license number 46051, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Esther Chang, PHARMD prescribe under Medicare Part D?
In 2024, Esther Chang, PHARMD had 147 Medicare Part D claims for 133 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.