Vuong Huu Nguyen, M.D.
NPI 1093701690ActiveIndividual· Internal Medicine· Westminster, CA
Internal Medicine (M.D.) in Westminster, California, trained at University of Alabama School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $1,965,176 for 14,696 claims, against $324,045 paid for services in 2024. Dexcom, Inc. was the largest of 20 companies reporting payments in 2025, $1,902 in all, mostly food and beverage.
Overview
| NPI | 1093701690 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 20, 2005 |
| Last updated in NPPES | Nov 1, 2023 |
| Certified by provider | Nov 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A69222 | 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 | 516 |
|---|---|
| Services billed | 4,703 across 63 procedure codes |
| Paid by Medicare | $324,045 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14,696 · 26,533 30-day fills |
|---|---|
| Patients | 612 |
| Total drug cost | $1,965,176 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Internal Medicine |
Medical group
- Westminster Medical Office IncWestminster, CA · 2 clinicians
Hospital affiliations
- Garden Grove Hospital & Medical CenterGarden Grove, CA
- Huntington Beach HospitalHuntington Beach, CA
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
- Uci Health-OrangeOrange, CA
Other facilities
- 24/7 Care at Home - Home HealthHome health agency · Westminster, CA
- Ameliorate Home Health IncHome health agency · Canoga Park, CA
- Delta Health Services IncHome health agency · Fountain Valley, CA
- Focus Home Health IncHome health agency · Garden Grove, CA
- Kindred Hospital WestminsterLong-term care hospital · Westminster, CA
- Anaheim Healthcare Center, LLCNursing home · Anaheim, CA
- Garden Grove Post AcuteNursing home · Garden Grove, CA
- Garden Park Care CenterNursing home · Garden Grove, CA
- Mission Palms Healthcare CenterNursing home · Westminster, CA
Industry payments (Open Payments)
- 2025$1,902 · 62 payments from 20 companies
- 2024$2,383 · 81 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $193.31 | 5 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $190.78 | 4 |
| Astrazeneca Pharmaceuticals LP | $189.23 | 7 |
| Sumitomo Pharma America, Inc. | $169.93 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $162.04 | 10 |
What the 2025 payments were for
- Food and Beverage$1,902 · 62 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 74 internal medicine physicians in Westminster · All internal medicine physicians in California