Jan Paul Rosaly Martinez, MD
NPI 1942794573ActiveIndividual· Internal Medicine, Nephrology· Mayaguez, PR
Internal Medicine, Nephrology (MD) with Nefrologos Asociados del Oeste, practicing in Mayaguez, Puerto Rico. Part D covered 133 prescriptions written in 2024, 85% of them generic. Calliditas Therapeutics US Inc. was the largest of 7 companies reporting payments in 2025, $525.89 in all, mostly food and beverage. Lists Hospital de la Concepcion as a hospital affiliation.
Overview
| NPI | 1942794573 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 18, 2018 |
| Last updated in NPPES | Apr 23, 2024 |
| Certified by provider | Apr 23, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 23698 | PR |
| Student in an Organized Health Care Education/Training Program | 390200000X | 34392 | FL |
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 - Nephrology (PR) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 133 · 160 30-day fills |
|---|---|
| Patients | 74 |
| Total drug cost | $26,313 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nephrology |
Medical group
- Nefrologos Asociados del OesteSan German, PR · 7 clinicians
Hospital affiliation
- Hospital de la ConcepcionSan German, PR
Industry payments (Open Payments)
- 2025$525.89 · 11 payments from 7 companies
- 2024$25.75 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $183.65 | 4 |
| Mallinckrodt Hospital Products Inc. | $99.99 | 1 |
| Amgen Inc. | $70.64 | 1 |
| Jazz Pharmaceuticals Inc. | $62.97 | 1 |
| Astrazeneca Pharmaceuticals LP | $57.00 | 2 |
What the 2025 payments were for
- Food and Beverage$425.90 · 10 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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