Thanh T. Chang, RPH
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Issaquah, WA
Thanh T. Chang, RPH is a pharmacist clinician (phc)/ clinical pharmacy specialist with a practice address in Issaquah, Washington, and NPI 1184999658, issued on Mar 17, 2012. Check the license (Washington PH00040554, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thanh T. Chang
- Credential
- RPH
- Primary taxonomy
- Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist 1835P0018X
- License number
- PH00040554 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4570 Klahanie Dr SE, Issaquah, WA 98029
- Phone
- (425) 392-8551
- Enumerated
- Mar 17, 2012
- Record last updated
- Jun 12, 2026
- Fax
- (425) 392-3703
- Entity
- Type 1 · individual
Also registered at 4570 Klahanie Dr SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Gunn, RPHPharmacist1629505433
- Eric LinPharmacist1821358854
Verify Thanh T. Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PH00040554Check 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
57 Medicare Part D claims for 53 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.
- Abrysvo20 claims
- Boostrix Tdap15 claims
- Shingrix13 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.
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist providers in Washington
There are 610 pharmacist clinician (phc)/ clinical pharmacy specialist records in Washington.
Other pharmacist clinician (phc)/ clinical pharmacy specialist records in Washington
- Laurel Aaberg, PHARMDWenatchee, WA1245620947
- Stephanie Abbott, PHARM DEverett, WA1679992903
- Sarah Abel, PHARMDJoint Base Lewis McChord, WA1386053379
- Evan Abrass, PHARMDSeattle, WA1598237919
- Abera Abu, PHARM DVancouver, WA1003366782
- Glenn Adams, PHARM.DWenatchee, WA1659700037
- Paige Akiyama, PHARMDSeattle, WA1598311524
- Zaid Al Zubaidi, PHARMACISTVancouver, WA1811652225
- Jonathan Albarado, PHARM.D.Tacoma, WA1184096406
- Camilla Albrecht, RPHVancouver, WA1568645489
Common questions
What is Thanh T. Chang, RPH's NPI number?
Thanh T. Chang, RPH's National Provider Identifier (NPI) is 1184999658, issued on Mar 17, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Thanh T. Chang, RPH located?
The NPPES record lists a practice address at 4570 Klahanie Dr SE, Issaquah, WA, 98029. Phone: (425) 392-8551. Providers update this record themselves, so call before visiting.
How can I verify Thanh T. Chang, RPH's license?
NPPES lists Washington license number PH00040554, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Thanh T. Chang, RPH prescribe under Medicare Part D?
In 2024, Thanh T. Chang, RPH had 57 Medicare Part D claims for 53 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.