Tracey Chang
Pharmacist · Castro Valley, CA
Tracey Chang is a pharmacist with a practice address in Castro Valley, California, and NPI 1144620428, issued on Aug 24, 2014. Check the license (California 71015, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tracey Chang
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 71015 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20629 Redwood RD, Castro Valley, CA 94546
- Phone
- (510) 538-0268
- Enumerated
- Aug 24, 2014
- Record last updated
- Aug 24, 2014 (not updated in 12 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 →
Also registered at 20629 Redwood RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jay DavePharmacist1942563671
- Jeremiah Gonzales, PHARM DPharmacist1144520438
- Ngoc La, PHARMDPharmacist1336512227
Verify Tracey 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 71015Check 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
63 Medicare Part D claims for 54 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.
- Arexvy22 claims
- Shingrix17 claims
- Abrysvo13 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.
Tracey Chang among 32,533 pharmacist records in California
Tracey Chang 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).
48 pharmacist records list a practice address in Castro Valley
They are 48 of the 999 NPPES records with a practice address in Castro Valley, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Castro Valley → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Forrest Batz, PHARM.D.Castro Valley, CA 945461932200813
- Robert Brans, PHARMDCastro Valley, CA 945461306923651
- Jane Chew, PHARM.D.Castro Valley, CA 945461194093690
- Crystal Choi, PHARM DCastro Valley, CA 945461023395076
- Anita Chui, PHARM.D.Castro Valley, CA 945461629354097
- Jay DaveCastro Valley, CA 945461942563671
- Robert Duey, PHARM DCastro Valley, CA 945461366529588
- Jeremiah Gonzales, PHARM DCastro Valley, CA 945461144520438
Common questions
What is Tracey Chang's NPI number?
Tracey Chang's National Provider Identifier (NPI) is 1144620428, issued on Aug 24, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Tracey Chang located?
The NPPES record lists a practice address at 20629 Redwood RD, Castro Valley, CA, 94546. Phone: (510) 538-0268. Providers update this record themselves, so call before visiting.
How can I verify Tracey Chang's license?
NPPES lists California license number 71015, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Tracey Chang prescribe under Medicare Part D?
In 2024, Tracey Chang had 63 Medicare Part D claims for 54 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.