Registry data as of Aug 27, 2026

Carol Hsiao, O.D.

Optometrist · Seattle, WA

Carol Hsiao, O.D. is an optometrist with a practice address in Seattle, Washington, and NPI 1720137581, issued on Jan 10, 2007. Check the license with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1720137581
Name
Carol Hsiao
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
Practice location
310 15TH Ave E, Seattle, WA 98112
Phone
(206) 326-3000
Enumerated
Jan 10, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 310 15TH Ave E

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jo Anderson, RPHPharmacist1063612083
  2. Brenda Augustavo, PHPharmacist1790814531
  3. Daniel Avery, MD MPHUrology Physician1215192463
  4. Brandon Bartels, A.R.N.P.Registered Nurse1467518076
  5. Anamika Bennett, L.D.Audiologist-Hearing Aid Fitter1891918124
  6. Barbara Berry, P.T.Physical Therapist1831249473

Verify Carol Hsiao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

84% fewer Medicare Part D claims than the average optometrist in 2024

46 Medicare Part D claims for 25 beneficiaries, against an average of 279 among the 32,314 providers of this specialty who prescribed in Part D.

  1. Carol Hsiao46
  2. Specialty average279

Most prescribed

  1. Neomycin-Polymyxin-Dexameth15 claims
  2. Latanoprost14 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.

One hospital or facility affiliation

  1. Kaiser Foundation Health Plan OF WashingtonSeattle, WA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Optometrist providers in Washington

There are 1,616 optometrist records in Washington.

Other optometrist records in Washington

  1. Jenni Aaseby, O.D.Shelton, WA1720133374
  2. Meagan-Rhose Abanto, ODEverett, WA1457027880
  3. Jabeen Abdulla, O.D.Tacoma, WA1629304217
  4. James Abel, ODRenton, WA1255945390
  5. Christina Abercrombie, ODKent, WA1346906252
  6. Ashley Abiva, ODSeattle, WA1902572449
  7. Kenneth Absalonson, ODSpokane, WA1811206998
  8. Nour Abu-Haltam, ODVancouver, WA1194602037
  9. Peter Adachi, ODSeattle, WA1811040058
  10. Mark Aginsky, O.D.Bellingham, WA1730169285

Common questions

What is Carol Hsiao, O.D.'s NPI number?

Carol Hsiao, O.D.'s National Provider Identifier (NPI) is 1720137581, issued on Jan 10, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Carol Hsiao, O.D. located?

The NPPES record lists a practice address at 310 15TH Ave E, Seattle, WA, 98112. Phone: (206) 326-3000. Providers update this record themselves, so call before visiting.

How can I verify Carol Hsiao, O.D.'s license?

Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Carol Hsiao, O.D. prescribe under Medicare Part D?

In 2024, Carol Hsiao, O.D. had 46 Medicare Part D claims for 25 beneficiaries; the average among optometrist prescribers was 279. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.