LOUIS YANG (MD) – Glaucoma Specialist (Ophthalmology) Physician, NPI 1710180377
Glaucoma Specialist (Ophthalmology) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
466 OPHTHALMOLOGY in WA
Provider Addresses for LOUIS YANG (MD)
1101 Madison St
Suite 600
Seattle, WA 981041306
Phone: (206) 215-2020
Fax: (206) 215-2022
Type: Location
El Camino Real, Burlingame, San Mateo County, California, 94101, United States
STE 225
BURLINGAME, CA 940103230
Phone: (650) 552-8070
Fax: (650) 697-3203
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 43 Open Payments records for all available years, with a total value of $1,209.
Total Amount is formed as General ($1,209) + Research ($0) + Ownership ($0) = $1,209.
Last reported payment date: 2024-12-06 • Largest payer in this snapshot: Sight Sciences, Inc. ($167).
Total Amount
$1,209
General + Research + Ownership
Payments
43
Total payment records
General Amount
$1,209
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Sight Sciences, Inc. | $167 |
| Mallinckrodt Hospital Products Inc. | $166 |
| Bausch & Lomb Americas Inc. | $142 |
| Alcon Vision LLC | $119 |
| Rayner Intraocular Lenses Limited | $101 |
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: 2019-06-06
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20190606001160 | I | Ophthalmology | CA | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 949 | 488 | $0 |
| 92250 | Photography of the retina | 589 | 574 | $0 |
| 92133 | Imaging of optic nerve | 398 | 322 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 338 | 304 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 320 | 320 | $0 |
Insurance plans in this area (ZIP 98104)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O P H T H A L M O L O G Y | CA |
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