Hoang An N. Nguyen, MD
NPI 1114095528ActiveIndividual· Internal Medicine· Ashburn, VA
Internal Medicine (MD) in Ashburn, Virginia, trained at University of Virginia School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $289,546 for 6,903 claims, against $3,244 paid for services in 2024.
Overview
| NPI | 1114095528 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 1, 2006 |
| Last updated in NPPES | Jan 7, 2022 |
| Certified by provider | Jun 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 0101235326 | VA |
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 - Internal Medicine (DC); Practitioner - Internal Medicine (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 11 |
|---|---|
| Services billed | 46 across 8 procedure codes |
| Paid by Medicare | $3,244 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,903 · 17,064 30-day fills |
|---|---|
| Patients | 493 |
| Total drug cost | $289,546 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Virginia School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
Medical group
- Kaiser Foundation Health Plan of the Mid Atlantic States, IncLargo, MD · 1,899 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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All 35 internal medicine physicians in Ashburn · All internal medicine physicians in Virginia