Ismael Mercado, MD
NPI 1376521997ActiveIndividual· General Practice· Bayamon, PR
General Practice (MD) in Bayamon, Puerto Rico, licensed in PR, with an NPI issued in January 2006. Their prescriptions cost Medicare Part D more than their services did: $504,321 for 8,279 claims, against $1,416 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 7 companies reporting payments in 2025, $635.60 in all, mostly food and beverage.
Overview
| NPI | 1376521997 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jan 4, 2006 |
| Last updated in NPPES | Sep 8, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| General Practice Primary | 208D00000X | 14690 | PR |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Practice (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 11 |
|---|---|
| Services billed | 32 across 2 procedure codes |
| Paid by Medicare | $1,416 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,279 · 15,040 30-day fills |
|---|---|
| Patients | 466 |
| Total drug cost | $504,321 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | General Practice |
Industry payments (Open Payments)
- 2025$635.60 · 10 payments from 7 companies
- 2024$767.73 · 15 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $163.21 | 4 |
| Lilly USA, LLC | $118.71 | 1 |
| Astrazeneca Pharmaceuticals LP | $118.71 | 1 |
| Amneal Pharmaceuticals LLC | $114.30 | 1 |
| Becton, Dickinson and Company | $73.55 | 1 |
What the 2025 payments were for
- Food and Beverage$635.60 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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