An Duy Nguyen, M.D.
NPI 1023011384ActiveIndividual· Internal Medicine, Hematology & Oncology· Huntington Beach, CA
Internal Medicine, Hematology & Oncology (M.D.) in Huntington Beach, California, trained at University of California, Geffen School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $343,295 for 588 claims, against $150,110 paid for services in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $41.47 in all, mostly food and beverage.
Overview
| NPI | 1023011384 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 31, 2005 |
| Last updated in NPPES | Jan 9, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A78574 | CA |
| Specialist | 174400000X | A78574 | CA |
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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 296 |
|---|---|
| Services billed | 1,900 across 8 procedure codes |
| Paid by Medicare | $150,110 |
Part D prescriptions in 2024
| Prescriptions (claims) | 588 · 700 30-day fills |
|---|---|
| Patients | 95 |
| Total drug cost | $343,295 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Usc Care Medical Group IncLos Angeles, CA · 1,380 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$41.47 · 2 payments from 2 companies
- 2024$51.76 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $22.98 | 1 |
| Incyte Corporation | $18.49 | 1 |
What the 2025 payments were for
- Food and Beverage$41.47 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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