Junyan Gan, O.D.
Optometrist · Renton, WA
Junyan Gan, O.D. is an optometrist with a practice address in Renton, Washington, and NPI 1679593677, issued on Jul 20, 2006. Check the license (Washington 3813, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Junyan Gan
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 3813 WA
Self-reported in NPPES; status is on the state search - Practice location
- 5335 NE 4TH St Ste 4, Renton, WA 98059
- Phone
- (425) 282-5475
- Enumerated
- Jul 20, 2006
- Record last updated
- Dec 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (425) 282-5936
- Medicare enrollment
- Enrolled (PECOS I20040217000200); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 2003
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,641 in Washington → Look up another NPI →
Verify Junyan Gan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license 3813Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average optometrist in 2024
36 Medicare Part D claims for 13 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of 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.
Junyan Gan among 1,641 optometrist records in Washington
Junyan Gan, 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 fileYes · 58% of these records are
- Graduated2003 · 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).
Optometrist providers in Washington
There are 1,641 optometrist records in Washington.
All 1,641 in Washington → Every provider in Renton → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Eugene Balogh, O.D.Newcastle, WA 980591417979394
- Michael Bernardi, ODRenton, WA 980591619696200
- Wendy Kuo-Eveland, O.D.Renton, WA 980591083915532
- Scott Oda, O.D.Newcastle, WA 980591275974214
- Kimberly Pandiangan, ODNewcastle, WA 980591992297493
- Sevda Topalova, OPTOMETRISTNewcastle, WA 980591730365719
- Weihan WangRenton, WA 980581801151782
- Jenna Hoiland, O.D.Renton, WA 980571942981378
Common questions
What is Junyan Gan, O.D.'s NPI number?
Junyan Gan, O.D.'s National Provider Identifier (NPI) is 1679593677, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Junyan Gan, O.D. located?
The NPPES record lists a practice address at 5335 NE 4TH St Ste 4, Renton, WA, 98059. Phone: (425) 282-5475. Providers update this record themselves, so call before visiting.
How can I verify Junyan Gan, O.D.'s license?
NPPES lists Washington license number 3813, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Junyan Gan, O.D. prescribe under Medicare Part D?
In 2024, Junyan Gan, O.D. had 36 Medicare Part D claims for 13 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.