William M. Tang, M.D.
NPI 1972540177ActiveIndividual· Ophthalmology· Natick, MA
Ophthalmology (M.D.) in Natick, Massachusetts, trained at Johns Hopkins University School of Medicine (class of 1993). In 2024 Medicare paid $2,380,600 for 1,148 patients, and Part D covered 1,194 of their prescriptions, 79% of them generic. Eagle Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2024, $46.59 in all, mostly food and beverage.
Overview
| NPI | 1972540177 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 31, 2006 |
| Last updated in NPPES | Nov 21, 2021 |
| Certified by provider | Nov 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 153637 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,148 |
|---|---|
| Services billed | 27,266 across 48 procedure codes |
| Paid by Medicare | $2,380,600 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,194 · 2,247 30-day fills |
|---|---|
| Patients | 247 |
| Total drug cost | $69,079 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Johns Hopkins University School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Ophthalmology |
Hospital affiliations
- Brigham and Women's HospitalBoston, MA
- Metrowest Medical CenterFramingham, MA
- Newton-Wellesley HospitalNewton, MA
Industry payments (Open Payments)
- 2024$46.59 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Eagle Pharmaceuticals, Inc. | $29.40 | 1 |
| Apellis Pharmaceuticals, Inc. | $17.19 | 1 |
What the 2024 payments were for
- Food and Beverage$29.40 · 1 payment
- Education$17.19 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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