MARY WING SUM TAM (MD) – Internal Medicine Physician, NPI 1053802454
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,893 OPHTHALMOLOGY in NY
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Provider Addresses for MARY WING SUM TAM (MD)
Stony Brook University Hospital, 101, Nicolls Road, Suffolk County, New York, 11794, United States
STONY BROOK, NY 117941699
Phone: (631) 444-4090
Type: Mailing
PO BOX 845347
DALLAS, TX 752845347
Phone: (214) 645-2020
Type: Mailing
5323 HARRY HINES BLVD
DALLAS, TX 753901699
Phone: (214) 645-2020
Type: Location
57 NORTH ST STE 415
DANBURY, CT 068105629
Phone:
Fax: (203) 628-4995
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 54 Open Payments records for all available years, with a total value of $2,165.
Total Amount is formed as General ($2,165) + Research ($0) + Ownership ($0) = $2,165.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: ABBVIE INC. ($930).
Total Amount
$2,165
General + Research + Ownership
Payments
54
Total payment records
General Amount
$2,165
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $930 |
| Alcon Vision LLC | $455 |
| Bausch & Lomb Americas Inc. | $284 |
| Mallinckrodt Hospital Products Inc. | $205 |
| Rayner Intraocular Lenses Limited | $122 |
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: 2025-05-27
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20220720003050 | I | Ophthalmology | TX | TBD |
| I20231016002533 | I | Ophthalmology | FL | TBD |
| I20250527000735 | I | Ophthalmology | CT | 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 |
|---|---|---|---|---|
| 92012 | Established patient problem focused exam of visual system | 18 | 18 | $0 |
| 92134 | Imaging of retina | 14 | 14 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 13 | 13 | $0 |
Insurance plans in this area (ZIP 11794)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O P H T H A L M O L O G Y | FL | |
| O P H T H A L M O L O G Y | FL | |
| O P T O M E T R Y | FL | |
| O P H T H A L M O L O G Y | FL | |
| - | FL | |
| O P H T H A L M O L O G Y | FL |
Reviews
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