Joanna Chow
Pharmacist · Oakland, CA
Joanna Chow is a pharmacist with a practice address in Oakland, California, and NPI 1740680610, issued on Aug 28, 2014. Check the license (California 71198, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joanna Chow
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 71198 CA
Self-reported in NPPES; status is on the state search - Practice location
- 301 E 18TH St, Oakland, CA 94606
- Phone
- (510) 271-0103
- Enumerated
- Aug 28, 2014
- Record last updated
- Aug 28, 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 301 E 18TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ting-Ju ChangPharmacist1558877126
- Hyonsuk JungInfection Control Registered Nurse1871205211
- Diana Nguyen, PHARM.DPharmacist1205112026
- Britnie Oshima, PHARMDPharmacist1861774747
- Long QuachPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1508630690
Verify Joanna Chow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 71198Check 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
22 Medicare Part D claims for 21 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.
- Arexvy16 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.
Joanna Chow among 32,533 pharmacist records in California
Joanna Chow 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).
413 pharmacist records list a practice address in Oakland
They are 413 of the 18,558 NPPES records with a practice address in Oakland, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Oakland → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Ting-Ju ChangOakland, CA 946061558877126
- Ketema Gemechu, PHARMDOakland, CA 946061376775809
- Tony Huynh, PHARM.D.Oakland, CA 946061598197154
- Glen Huynh, PHARMDOakland, CA 946061578121398
- Celine LauOakland, CA 946061386926269
- John Lee, PHARM DOakland, CA 946061083275069
- Donna Mui, PHARMDOakland, CA 946061417716507
- Diana Nguyen, PHARM.DOakland, CA 946061205112026
Common questions
What is Joanna Chow's NPI number?
Joanna Chow's National Provider Identifier (NPI) is 1740680610, issued on Aug 28, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Joanna Chow located?
The NPPES record lists a practice address at 301 E 18TH St, Oakland, CA, 94606. Phone: (510) 271-0103. Providers update this record themselves, so call before visiting.
How can I verify Joanna Chow's license?
NPPES lists California license number 71198, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Joanna Chow prescribe under Medicare Part D?
In 2024, Joanna Chow had 22 Medicare Part D claims for 21 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.