Walter F. Irizarry/Campero, M.D.
NPI 1154337335ActiveIndividual· General Practice· Lajas, PR
General Practice (M.D.) in Lajas, Puerto Rico, licensed in PR, with an NPI issued in July 2006. Their prescriptions cost Medicare Part D more than their services did: $472,067 for 16,812 claims, against $1,337 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 2 companies reporting payments in 2025, $261.65 in all, mostly food and beverage.
Overview
| NPI | 1154337335 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 31, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| General Practice Primary | 208D00000X | 16,211 | 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 | 36 across 2 procedure codes |
| Paid by Medicare | $1,337 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16,812 · 20,265 30-day fills |
|---|---|
| Patients | 385 |
| Total drug cost | $472,067 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | General Practice |
Industry payments (Open Payments)
- 2025$261.65 · 2 payments from 2 companies
- 2024$525.17 · 8 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $148.27 | 1 |
| Astrazeneca Pharmaceuticals LP | $113.38 | 1 |
What the 2025 payments were for
- Food and Beverage$261.65 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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