DR. LYNN WANSHU SUN (M.D., PH.D.) – Glaucoma Specialist (Ophthalmology) Physician, NPI 1922460195
Glaucoma Specialist (Ophthalmology) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
844 OPHTHALMOLOGY in MI
Provider Addresses for DR. LYNN WANSHU SUN (M.D., PH.D.)
3621 S STATE ST
ANN ARBOR, MI 481081633
Phone: (734) 647-5299
Type: Mailing
1000 WALL ST
ANN ARBOR, MI 481051912
Phone: (734) 764-4190
Type: Location
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 972393011
Phone: (503) 494-3000
Fax: (503) 494-4286
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $317.
Total Amount is formed as General ($317) + Research ($0) + Ownership ($0) = $317.
Last reported payment date: 2024-11-11 • Largest payer in this snapshot: Sight Sciences, Inc. ($146).
Total Amount
$317
General + Research + Ownership
Payments
5
Total payment records
General Amount
$317
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Sight Sciences, Inc. | $146 |
| Alcon Vision LLC | $102 |
| ABBVIE INC. | $42 |
| JAZZ PHARMACEUTICALS INC. | $26 |
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: 2021-09-21
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 |
|---|---|---|---|---|
| I20210921001925 | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 378 | 223 | $0 |
| 92133 | Imaging of optic nerve | 200 | 178 | $0 |
| 92083 | Exam of visual field with extended testing | 151 | 136 | $0 |
| 92020 | Exam of the internal drainage system of eye | 86 | 78 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 61 | 57 | $0 |
Insurance plans in this area (ZIP 48108)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O P H T H A L M O L O G Y | WA | |
| O P T O M E T R Y | WA | |
| 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 | WA | |
| O P H T H A L M O L O G Y | WA | |
| O P T O M E T R Y | WA | |
| O P H T H A L M O L O G Y | OR |
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