DR. SAMUEL HUISOK YUN (M.D.) – Retina Specialist (Ophthalmology) Physician, NPI 1790071694
Retina Specialist (Ophthalmology) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
565 OPHTHALMOLOGY in VA
Provider Addresses for DR. SAMUEL HUISOK YUN (M.D.)
3959 Pender Dr Ste 260
Fairfax, VA 220306041
Phone: (703) 364-5400
Type: Location
3959 PENDER DR
STE 260
FAIRFAX, VA 220306041
Phone: (301) 893-3484
Fax: (301) 893-3481
Type: Location
3930 PENDER DR STE 215
FAIRFAX, VA 220300992
Phone: (703) 364-5400
Fax: (703) 364-5412
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2024-05-08
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20190415001877 | I | Ophthalmology | DC | TBD |
| I20240508002872 | I | Ophthalmology | VA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 92134 | Imaging of retina | 624 | 395 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 541 | 334 | $0 |
| 92014 | Established patient complete exam of visual system | 444 | 440 | $0 |
| 92083 | Exam of visual field with extended testing | 327 | 242 | $0 |
| 92004 | New patient complete exam of visual system | 164 | 164 | $0 |
Insurance plans in this area (ZIP 22030)
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