DR. BRIAN TSI-WAH CHAN-KAI (M.D.) – Retina Specialist (Ophthalmology) Physician, NPI 1578690566
Retina Specialist (Ophthalmology) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
343 OPHTHALMOLOGY in OR
Provider Addresses for DR. BRIAN TSI-WAH CHAN-KAI (M.D.)
11086 SE OAK ST
PORTLAND, OR 972226692
Phone: (503) 344-5102
Fax: (503) 344-5110
Type: Mailing
10819 SE STARK ST
PORTLAND, OR 972163161
Phone: (503) 255-2291
Fax: (503) 252-1797
Type: Location
PO BOX 22009
PORTLAND, OR 972692009
Phone: (503) 558-7372
Fax: (503) 344-5140
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 83 Open Payments records for all available years, with a total value of $69,534.
Total Amount is formed as General ($69,534) + Research ($0) + Ownership ($0) = $69,534.
Last reported payment date: 2024-12-30 • Largest payer in this snapshot: Regeneron Healthcare Solutions, Inc. ($35,936).
Total Amount
$69,534
General + Research + Ownership
Payments
83
Total payment records
General Amount
$69,534
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Regeneron Healthcare Solutions, Inc. | $35,936 |
| Apellis Pharmaceuticals, Inc. | $21,552 |
| Genentech USA, Inc. | $4,784 |
| Baxter Healthcare | $3,280 |
| ABBVIE INC. | $2,262 |
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: 2025-03-31
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 |
|---|---|---|---|---|
| I20070906000018 | I | Ophthalmology | OR | TBD |
| I20250331000312 | I | Ophthalmology | WA | 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 |
|---|---|---|---|---|
| J2777 | Injection, faricimab-svoa, 0.1 mg | 6,182 | 20 | $0 |
| 92134 | Imaging of retina | 1,425 | 457 | $0 |
| J0178 | Injection, aflibercept, 1 mg | 1,041 | 118 | $0 |
| 67028 | Injection of drug into eye | 874 | 193 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 771 | 376 | $0 |
Insurance plans in this area (ZIP 97222)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O P H T H A L M O L O G Y | OR | |
| O P H T H A L M O L O G Y | WA | |
| O P H T H A L M O L O G Y | OR | |
| O P T O M E T R Y | OR | |
| O P T O M E T R Y | OR | |
| O P H T H A L M O L O G Y | OR | |
| O P H T H A L M O L O G Y | CA | |
| - | OR | |
| O P H T H A L M O L O G Y | OR | |
| - | OR |
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