NPPES file of Aug 9, 2026

Chih-Guang Chuang, O.D.

Optometrist · Seattle, WA

Chih-Guang Chuang, O.D. is an optometrist with a practice address in Seattle, Washington, and NPI 1275501165, issued on Mar 8, 2006. Check the license (Washington 3550, as entered in NPPES) with the Washington board that licenses this profession; 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
1275501165
Name
Chih-Guang Chuang
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
3550 WA
Self-reported in NPPES; status is on the state search
Practice location
7101 Martin Luther King JR Way S, Seattle, WA 98118
Phone
(206) 722-2218
Enumerated
Mar 8, 2006
Record last updated
Jun 2, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(206) 722-2211
Medicaid ID
2025328 WA
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 7101 Martin Luther King JR Way S

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

  1. Son Nguyen, M.D.Internal Medicine Physician1508927716
  2. Wilbur Susilasate, O.D.Optometrist1891783676

Verify Chih-Guang Chuang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license 3550
    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
Find the Washington license search

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94% fewer Medicare Part D claims than the average optometrist in 2024

16 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Chih-Guang Chuang16
  2. Specialty average277

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.

Industry payments in 2024: $101.34

1 payment: food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Chih-Guang Chuang$101.34
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Chih-Guang Chuang among 1,641 optometrist records in Washington

Chih-Guang Chuang, O.D. is one of 1,641 optometrist records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 62% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2010 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Washington

There are 1,641 optometrist records in Washington.

The 8 optometrist records with the nearest ZIP codes

  1. Brian Le, ODSeattle, WA 981181174442693
  2. Adrian Salamanca, O.D.Seattle, WA 981181710239058
  3. Wilbur Susilasate, O.D.Seattle, WA 981181891783676
  4. Tracy Lin, ODSeattle, WA 981171699138198
  5. Leslie Lung, O.D.Seattle, WA 981191700995321
  6. Daniel Volland, O.D.Seattle, WA 981171972838050
  7. Zhi Neng Feng, O.D.Seattle, WA 981161013375146
  8. Damian Gormley, O.D.Seattle, WA 981161881773950

Common questions

What is Chih-Guang Chuang, O.D.'s NPI number?

Chih-Guang Chuang, O.D.'s National Provider Identifier (NPI) is 1275501165, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chih-Guang Chuang, O.D. located?

The NPPES record lists a practice address at 7101 Martin Luther King JR Way S, Seattle, WA, 98118. Phone: (206) 722-2218. Providers update this record themselves, so call before visiting.

How can I verify Chih-Guang Chuang, O.D.'s license?

NPPES lists Washington license number 3550, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Chih-Guang Chuang, O.D. prescribe under Medicare Part D?

In 2024, Chih-Guang Chuang, O.D. had 16 Medicare Part D claims; the average among optometrist prescribers was 277. 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.