NPPES file of Aug 9, 2026

Andrea Huiyi Tham, MD

Pediatric Ophthalmology and Strabismus Specialist Physician · Vancouver, WA

Andrea Huiyi Tham, MD is a pediatric ophthalmology and strabismus specialist physician with a practice address in Vancouver, Washington, and NPI 1669976809, issued on Mar 21, 2018. Check the license (Washington MD.MD.61546411, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669976809
Name
Andrea Huiyi Tham
Credential
MD
Primary taxonomy
Pediatric Ophthalmology and Strabismus Specialist Physician 207WX0110X
License number
MD.MD.61546411 WA
Self-reported in NPPES; status is on the state search
Practice location
2525 NE 139TH St, Vancouver, WA 98686
Phone
(408) 416-6819
Enumerated
Mar 21, 2018
Record last updated
Jul 22, 2024
Medicare enrollment
Enrolled (PECOS I20240808004571); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2525 NE 139TH St

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

  1. Aaron Adam, PA-CPhysician Assistant1447543459
  2. Cameron Anderson, MDFamily Medicine Physician1336727619
  3. Mackenzie Anderson, DOInternal Medicine Physician1568111060
  4. Cynthia Ashbaugh, FNPFamily Nurse Practitioner1356320402
  5. Irene Beach, CNMAdvanced Practice Midwife1629010616
  6. Kc Bly, CNMAdvanced Practice Midwife1902198708

Verify Andrea Huiyi Tham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD.MD.61546411
    Check 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
Open the Washington license search

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28% fewer Medicare Part D claims than the average pediatric ophthalmology and strabismus specialist physician in 2024

80 Medicare Part D claims for 43 beneficiaries, against an average of 111 among the 150 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.

  1. Andrea Tham80
  2. Specialty average111

Most prescribed

  1. Neomycin-Polymyxin-Dexameth42 claims
  2. Prednisolone Acetate14 claims
  3. Ofloxacin13 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.

Bills Medicare through one group practice

  1. The Vancouver Clinic Inc PSCamas, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Pediatric Ophthalmology and Strabismus Specialist Physician providers in Washington

There are 5 pediatric ophthalmology and strabismus specialist physician records in Washington.

The 4 pediatric ophthalmology and strabismus specialist physician records with the nearest ZIP codes

  1. Ka Yi Tam, MDTacoma, WA 984051407387996
  2. Matthew Weed, M.D.Spokane, WA 992041780995993
  3. Carmel Mercado, MDSeattle, WA 981051265701080
  4. K. Epley, M.D.Kirkland, WA 980341588642003

Common questions

What is Andrea Huiyi Tham, MD's NPI number?

Andrea Huiyi Tham, MD's National Provider Identifier (NPI) is 1669976809, issued on Mar 21, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Andrea Huiyi Tham, MD located?

The NPPES record lists a practice address at 2525 NE 139TH St, Vancouver, WA, 98686. Phone: (408) 416-6819. Providers update this record themselves, so call before visiting.

How can I verify Andrea Huiyi Tham, MD's license?

NPPES lists Washington license number MD.MD.61546411, as entered by the provider. 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 Andrea Huiyi Tham, MD prescribe under Medicare Part D?

In 2024, Andrea Huiyi Tham, MD had 80 Medicare Part D claims for 43 beneficiaries; the average among pediatric ophthalmology and strabismus specialist physician prescribers was 111. 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.