AIYIN CHEN (M.D.) – Glaucoma Specialist (Ophthalmology) Physician, NPI 1629305131
Glaucoma Specialist (Ophthalmology) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
343 OPHTHALMOLOGY in OR
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Provider Addresses for AIYIN CHEN (M.D.)
OHSU Center For Health And Healing, 3303, Southwest Bond Avenue, South Portland, Portland, Metro, Multnomah County, Oregon, 97239, United States
PORTLAND, OR 972394501
Phone: (503) 494-3000
Fax: (503) 418-0843
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $130.
Total Amount is formed as General ($130) + Research ($0) + Ownership ($0) = $130.
Last reported payment date: 2024-06-28 • Largest payer in this snapshot: Apellis Pharmaceuticals, Inc. ($103).
Total Amount
$130
General + Research + Ownership
Payments
2
Total payment records
General Amount
$130
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-28
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Apellis Pharmaceuticals, Inc. | $103 |
| Alcon Vision LLC | $27 |
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: 2017-08-04
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 |
|---|---|---|---|---|
| I20170804002678 | I | Ophthalmology | OR | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 177 | 108 | $0 |
| 92083 | Exam of visual field with extended testing | 89 | 79 | $0 |
| 92133 | Imaging of optic nerve | 78 | 73 | $0 |
| 92020 | Exam of the internal drainage system of eye | 50 | 46 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 33 | 30 | $0 |
Insurance plans in this area (ZIP 97239)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| OPHTHALMOLOGY | OR | 92012 | Eye and medical examination for diagnosis and treatment, established patient | 1199 | 590 |
| OPHTHALMOLOGY | OR | 92083 | Measurement of field of vision during daylight conditions | 388 | 357 |
| OPHTHALMOLOGY | OR | 92134 | Diagnostic imaging of retina | 157 | 144 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | OR | |
| Diagnostic Radiology | TN | |
| - | OR | |
| Nurse Practitioner | OR | |
| - | OR | |
| - | OR | |
| Nurse Practitioner | OR | |
| Pediatric Medicine | OR | |
| - | OR | |
| - | OR |
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