WILLIAM M TANG (M.D.) – Ophthalmology Physician, NPI 1972540177
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
801 OPHTHALMOLOGY in MA
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Provider Addresses for WILLIAM M TANG (M.D.)
182, West Central Street, Natick Village, West Natick, Natick, Middlesex County, Massachusetts, 01701, United States
SUITE 102
NATICK, MA 017603756
Phone: (508) 903-0003
Type: Mailing
West Central Street, Lokerville, Natick, Middlesex County, Massachusetts, 01702, United States
RETINA EYE CARE, P.C.
NATICK, MA 017603756
Phone: (508) 903-0003
Type: Location
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 $47.
Total Amount is formed as General ($47) + Research ($0) + Ownership ($0) = $47.
Last reported payment date: 2024-01-31 • Largest payer in this snapshot: EAGLE PHARMACEUTICALS, INC. ($29).
Total Amount
$47
General + Research + Ownership
Payments
2
Total payment records
General Amount
$47
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-01-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| EAGLE PHARMACEUTICALS, INC. | $29 |
| Apellis Pharmaceuticals, Inc. | $17 |
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: 2011-10-20
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 |
|---|---|---|---|---|
| I20111020000119 | I | Ophthalmology | MA | 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 | 5,460 | 24 | $0 |
| J0178 | Injection, aflibercept, 1 mg | 1,802 | 140 | $0 |
| 67028 | Injection of drug into eye | 1,645 | 245 | $0 |
| 92134 | Imaging of retina | 1,118 | 735 | $0 |
| J9035 | Injection, bevacizumab, 10 mg | 979 | 151 | $0 |
Insurance plans in this area (ZIP 01760)
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Provider's Procedures
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