Lydia K. Yau, PH
Pharmacist · Redmond, WA
Lydia K. Yau, PH is a pharmacist with a practice address in Redmond, Washington, and NPI 1396872529, issued on Feb 27, 2007. Check the license (Washington IR00065480, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lydia K. Yau
- Credential
- PH
- Primary taxonomy
- Pharmacist 183500000X
- License number
- IR00065480 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2700 152ND Ave NE, Redmond, WA 98052
- Phone
- (425) 883-5151
- Enumerated
- Feb 27, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 7,777 in Washington → Look up another NPI →
Also registered at 2700 152ND Ave NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lydia K. Yau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license IR00065480Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average pharmacist in 2024
39 Medicare Part D claims for 11 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D.
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.
Lydia K. Yau among 7,777 pharmacist records in Washington
Lydia K. Yau, PH is one of 7,777 pharmacist records with a practice address in Washington. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 10% of them.
- NPI issued2007 · 10% of these records are older, 82% newer
- In a Medicare fileYes · 32% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 75% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
84 pharmacist records list a practice address in Redmond
They are 84 of the 1,797 NPPES records with a practice address in Redmond, and 7,777 pharmacist records in Washington.
All 7,777 in Washington → Every provider in Redmond → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Emily Armantrout, RPHRedmond, WA 980521346217007
- Melanie CallRedmond, WA 980521366582439
- Mary CarpenterRedmond, WA 980521477693547
- Mary Fors, R.PHRedmond, WA 980521518007665
- Susan Hoang, PHARMDRedmond, WA 980521588635742
- Debbie Hung, RPHRedmond, WA 980521700864790
- Lisa O'Brochta, PHARMACISTRedmond, WA 980521790823433
- Cynthia RobinsonRedmond, WA 980521578601910
Common questions
What is Lydia K. Yau, PH's NPI number?
Lydia K. Yau, PH's National Provider Identifier (NPI) is 1396872529, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lydia K. Yau, PH located?
The NPPES record lists a practice address at 2700 152ND Ave NE, Redmond, WA, 98052. Phone: (425) 883-5151. Providers update this record themselves, so call before visiting.
How can I verify Lydia K. Yau, PH's license?
NPPES lists Washington license number IR00065480, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Lydia K. Yau, PH prescribe under Medicare Part D?
In 2024, Lydia K. Yau, PH had 39 Medicare Part D claims for 11 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.