Vincent A. Duenas, MD
NPI 1831244888ActiveIndividual· Internal Medicine· Tamuning, GU
Internal Medicine (MD) in Tamuning, Guam, trained at Saint Louis University School of Medicine (class of 1976). Mostly services rather than prescriptions: Medicare paid $3,682 for 12 patients in 2024, with only 36 Part D claims.
Overview
| NPI | 1831244888 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 23, 2007 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | M638 | GU |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (GU) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 12 |
|---|---|
| Services billed | 50 across 4 procedure codes |
| Paid by Medicare | $3,682 |
Part D prescriptions in 2024
| Prescriptions (claims) | 36 · 36 30-day fills |
|---|---|
| Total drug cost | $2,159 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 1976 |
| Medicare specialty | Internal Medicine |
Medical group
- Guam Memorial HospitalTamuning, GU · 131 clinicians
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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