Cathy Yx Zhang, MD
Ophthalmology Physician · Silverdale, WA
Cathy Yx Zhang, MD is an ophthalmology physician with a practice address in Silverdale, Washington, and NPI 1164082426, issued on Jun 19, 2019. Check the license on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Cathy Yx Zhang
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 25MA11762300 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 10452 Silverdale Way NW, Silverdale, WA 98383
- Phone
- (360) 307-7300
- Enumerated
- Jun 19, 2019
- Record last updated
- May 20, 2025
- Fax
- (877) 777-9902
- Medicare enrollment
- Enrolled (PECOS I20241230001468); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 10452 Silverdale Way NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kavita Bansil, ODOptometrist1790836955
- Peter Barkett, M.D.Internal Medicine Physician1891086252
- Carrielyn Bays, P.A.Physician Assistant1699828376
- Joe Bennett, MDEmergency Medicine Physician1053769893
- Anne Blankenheim, PA-CMedical Physician Assistant1699087866
- Janet Boltwood, LICSWClinical Social Worker1306238431
Verify Cathy Yx Zhang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical CommissionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average ophthalmology physician in 2024
815 Medicare Part D claims for 319 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Latanoprost228 claims
- Dorzolamide-Timolol96 claims
- Prednisolone Acetate73 claims
- Brimonidine Tartrate71 claims
- Simbrinza49 claims
- Timolol Maleate45 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 90.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $69.30
4 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF WashingtonOlympia, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
16 ophthalmology physician records list a practice address in Silverdale
They are 16 of the 1,305 NPPES records with a practice address in Silverdale, and 522 ophthalmology physician records in Washington.
All 16 in Silverdale → All 522 in Washington → Every provider in Silverdale →
Other ophthalmology physician records in Washington
- Grant Aaker, MDLacey, WA1770872988
- Deepa Abraham, MDSeattle, WA1447250568
- Jeffery Adkins, MDCoupeville, WA1255309696
- Nathan AgiSeattle, WA1518429380
- Darryl Ainbinder, M.D.Tacoma, WA1851365316
- Robert Alan, MDBellingham, WA1780654335
- Rory Allar, M.D.Spokane, WA1326272691
- Joseph Alsberge, M.D.Vancouver, WA1740623792
- Arash Amadi, M.D.Seattle, WA1225112063
- Dallin Andersen, MDSpokane, WA1225492333
Common questions
What is Cathy Yx Zhang, MD's NPI number?
Cathy Yx Zhang, MD's National Provider Identifier (NPI) is 1164082426, issued on Jun 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Cathy Yx Zhang, MD located?
The NPPES record lists a practice address at 10452 Silverdale Way NW, Silverdale, WA, 98383. Phone: (360) 307-7300. Providers update this record themselves, so call before visiting.
How can I verify Cathy Yx Zhang, MD's license?
Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cathy Yx Zhang, MD prescribe under Medicare Part D?
In 2024, Cathy Yx Zhang, MD had 815 Medicare Part D claims for 319 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Cathy Yx Zhang, MD's MIPS final score?
The 2023 MIPS final score is 90.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.