Justin Chen
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Seattle, WA
Justin Chen is a pharmacist clinician (phc)/ clinical pharmacy specialist with a practice address in Seattle, Washington, and NPI 1851055511, issued on Oct 28, 2021. Check the license (Washington PH61073116, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Justin Chen
- Primary taxonomy
- Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist 1835P0018X
- License number
- PH61073116 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4550 42ND Ave SW, Seattle, WA 98116
- Phone
- (206) 923-6391
- Enumerated
- Oct 28, 2021
- Record last updated
- Jun 12, 2026
- Entity
- Type 1 · individual
8 nearest pharmacist clinician (phc)/ clinical pharmacy specialist records → All 610 in Washington → Look up another NPI →
Also registered at 4550 42ND Ave SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mackhai Nguyen, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1518445030
Verify Justin Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PH61073116Check 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
92 Medicare Part D claims for 85 beneficiaries, against an average of 253 among the 1,614 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.
- Arexvy29 claims
- Shingrix28 claims
- Boostrix Tdap23 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.
Justin Chen among 610 pharmacist clinician (phc)/ clinical pharmacy specialist records in Washington
Justin Chen is one of 610 pharmacist clinician (phc)/ clinical pharmacy specialist records with a practice address in Washington. 42% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 83% of them.
- NPI issued2021 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 42% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1835P0018X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist providers in Washington
There are 610 pharmacist clinician (phc)/ clinical pharmacy specialist records in Washington.
All 610 in Washington → Every provider in Seattle → Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist nationwide →
The 8 pharmacist clinician (phc)/ clinical pharmacy specialist records with the nearest ZIP codes
- Mackhai Nguyen, PHARMDSeattle, WA 981161518445030
- Maxwell DemerittSeattle, WA 981171427694470
- Jennifer NiyazovaSeattle, WA 981171306762885
- Ciera Sitton, PHARMDSeattle, WA 981171386420800
- Christine LeeSeattle, WA 981121699127506
- Loi Chau, PHARM.DSeattle, WA 981221639574981
- Lara Connell, PHARMDSeattle, WA 981221528246170
- Marian Dobles, PHARMDSeattle, WA 981221639709728
Common questions
What is Justin Chen's NPI number?
Justin Chen's National Provider Identifier (NPI) is 1851055511, issued on Oct 28, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Justin Chen located?
The NPPES record lists a practice address at 4550 42ND Ave SW, Seattle, WA, 98116. Phone: (206) 923-6391. Providers update this record themselves, so call before visiting.
How can I verify Justin Chen's license?
NPPES lists Washington license number PH61073116, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Justin Chen prescribe under Medicare Part D?
In 2024, Justin Chen had 92 Medicare Part D claims for 85 beneficiaries; the average among pharmacist clinician (phc)/ clinical pharmacy specialist prescribers was 253. 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.