William Grassette Melendez, MD
NPI 1972515856ActiveIndividual· General Practice· Toa Baja, PR
General Practice (MD) in Toa Baja, Puerto Rico, licensed in PR, with an NPI issued in August 2006. Part D covered 7,704 prescriptions written in 2024, 89% of them generic. Pfizer Inc. was the largest of 3 companies reporting payments in 2025, $298.27 in all, mostly food and beverage.
Overview
| NPI | 1972515856 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 12, 2006 |
| Last updated in NPPES | Apr 11, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| General Practice Primary | 208D00000X | 10816 | PR |
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 - General Practice (PR) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 7,704 · 15,056 30-day fills |
|---|---|
| Patients | 408 |
| Total drug cost | $273,182 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | General Practice |
Industry payments (Open Payments)
- 2025$298.27 · 4 payments from 3 companies
- 2024$23.53 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $125.00 | 1 |
| Lilly USA, LLC | $118.71 | 1 |
| Merck Sharp & Dohme LLC | $54.56 | 2 |
What the 2025 payments were for
- Food and Beverage$298.27 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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