Hung Huu Nguyen, MD
NPI 1619921095ActiveIndividual· Internal Medicine· Westminster, CA
Internal Medicine (MD) with Bolsa Medical Group, practicing in Westminster, California. Their prescriptions cost Medicare Part D more than their services did: $3,487,044 for 17,712 claims, against $323,195 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 8 companies reporting payments in 2025, $1,053 in all, mostly food and beverage.
Overview
| NPI | 1619921095 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 20, 2006 |
| Last updated in NPPES | Feb 10, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A34250 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 382 |
|---|---|
| Services billed | 5,932 across 57 procedure codes |
| Paid by Medicare | $323,195 |
Part D prescriptions in 2024
| Prescriptions (claims) | 17,712 · 41,390 30-day fills |
|---|---|
| Patients | 830 |
| Total drug cost | $3,487,044 |
| Generic share | 77% of claims |
Education and affiliations
| Graduation year | 1972 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Bolsa Medical GroupWestminster, CA · 14 clinicians
Industry payments (Open Payments)
- 2025$1,053 · 38 payments from 8 companies
- 2024$2,249 · 56 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $543.77 | 23 |
| Amgen Inc. | $250.55 | 8 |
| Lilly USA, LLC | $120.09 | 1 |
| Merck Sharp & Dohme LLC | $53.55 | 2 |
| Dexcom, Inc. | $26.45 | 1 |
What the 2025 payments were for
- Food and Beverage$1,053 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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