Eric Chang, O.D.
Optometrist · Issaquah, WA
Eric Chang, O.D. is an optometrist with a practice address in Issaquah, Washington, and NPI 1427207216, issued on Sep 16, 2008. Check the license (Washington OD 60035981, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Eric Chang
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OD 60035981 WA
Self-reported in NPPES; status is on the state search - Practice location
- 22530 SE 64TH PL Ste 140, Issaquah, WA 98027
- Phone
- (425) 392-2020
- Enumerated
- Sep 16, 2008
- Record last updated
- Sep 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140604000502); accepts Medicare assignment
- Medical or professional school
- University Of California - School Of Optometry, 2008
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,641 in Washington → Look up another NPI →
Verify Eric Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license OD 60035981Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average optometrist in 2024
73 Medicare Part D claims for 28 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Latanoprost26 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.
Industry payments in 2024: $40.77
2 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Eric Chang among 1,641 optometrist records in Washington
Eric Chang, 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 2008, is newer than 53% of them.
- NPI issued2008 · 53% of these records are older, 44% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2008 · median 2010 among the 949 with a school on file
- Record last updated2021 · 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).
26 optometrist records list a practice address in Issaquah
They are 26 of the 1,727 NPPES records with a practice address in Issaquah, and 1,641 optometrist records in Washington.
All 1,641 in Washington → Every provider in Issaquah → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Edwin AmboIssaquah, WA 980271336277102
- Stephan Cassidy, O.D.Issaquah, WA 980271679630867
- Terry Cowgill, O.D.Issaquah, WA 980271285833087
- Mark Jensen, ODIssaquah, WA 980271760473920
- Yong Kwon, O.DIssaquah, WA 980271639422454
- Natalie Lam, O.D.Issaquah, WA 980271578705240
- Priya Macdonald, O.D.Issaquah, WA 980271245381375
- Mai Nguyen, O.D.Issaquah, WA 980271417269978
Common questions
What is Eric Chang, O.D.'s NPI number?
Eric Chang, O.D.'s National Provider Identifier (NPI) is 1427207216, issued on Sep 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Eric Chang, O.D. located?
The NPPES record lists a practice address at 22530 SE 64TH PL Ste 140, Issaquah, WA, 98027. Phone: (425) 392-2020. Providers update this record themselves, so call before visiting.
How can I verify Eric Chang, O.D.'s license?
NPPES lists Washington license number OD 60035981, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Eric Chang, O.D. prescribe under Medicare Part D?
In 2024, Eric Chang, O.D. had 73 Medicare Part D claims for 28 beneficiaries; 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.