Junyan Gan, O.D.
NPI 1679593677 · Optometrist · Renton, WA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Junyan Gan, O.D. is a Optometrist provider in Renton, WA (NPI 1679593677).
Provider details
- NPI number
- 1679593677
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 3813 (WA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
81 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Photography of the Retina92250 | 31 | $41 |
| Established Patient Complete Exam of Visual System92014 | 28 | $142 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 22 | $100 |
Typical Medicare-allowed amounts for these services range $41–$142 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-20
- Last updated
- 2021-12-11
- Certified
- 2021-12-11
Frequently asked questions
- What is Junyan Gan's NPI number?
- Junyan Gan's National Provider Identifier (NPI) is 1679593677, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Junyan Gan's specialty?
- Junyan Gan is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Junyan Gan located?
- Junyan Gan's practice location on file with NPPES is 5335 Ne 4th St Ste 4, Renton, WA 98059-4831.
- What is Junyan Gan's phone number?
- The practice phone number listed in the NPPES registry for Junyan Gan is (425) 282-5475.
- Does Junyan Gan accept Medicare?
- Junyan Gan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Junyan Gan's NPI active?
- Yes — Junyan Gan's NPI (1679593677) is active in the NPPES registry as of the last update on 2021-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.