Guillermo Rafael Armaiz, M.D.
NPI 1598740920ActiveIndividual· Internal Medicine· Vega Baja, PR
Internal Medicine (M.D.) in Vega Baja, Puerto Rico, licensed in PR, with an NPI issued in December 2005. Part D covered 24 prescriptions written in 2024, 79% of them generic.
Overview
| NPI | 1598740920 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Dec 8, 2005 |
| Last updated in NPPES | Dec 17, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 6843 | 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 - Internal Medicine (PR) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 24 · 28 30-day fills |
|---|---|
| Patients | 14 |
| Total drug cost | $405.83 |
| Generic share | 79% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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