Jose E. Najul Zambrana, MD
NPI 1912079203ActiveIndividual· Internal Medicine, Gastroenterology· Arecibo, PR
Internal Medicine, Gastroenterology (MD) in Arecibo, Puerto Rico, trained at University of Puerto Rico School of Medicine (class of 1978). Their prescriptions cost Medicare Part D more than their services did: $158,333 for 7,592 claims, against $3,571 paid for services in 2024. Pfizer Inc. reported $23.08 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1912079203 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 14, 2006 |
| Last updated in NPPES | Oct 17, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 6631 | 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 - Gastroenterology (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 17 |
|---|---|
| Services billed | 38 across 5 procedure codes |
| Paid by Medicare | $3,571 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,592 · 7,908 30-day fills |
|---|---|
| Patients | 1,329 |
| Total drug cost | $158,333 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of Puerto Rico School of Medicine |
|---|---|
| Graduation year | 1978 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Industry payments (Open Payments)
- 2025$23.08 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $23.08 | 1 |
What the 2025 payments were for
- Food and Beverage$23.08 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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