Brian Linh Nguyen, M.D.
NPI 1851314512ActiveIndividual· Internal Medicine· Sun City, CA
Internal Medicine (M.D.) with Brian L Nguyen MD Inc, practicing in Sun City, California. Their prescriptions cost Medicare Part D more than their services did: $1,178,458 for 13,822 claims, against $177,060 paid for services in 2024. Amgen Inc. was the largest of 14 companies reporting payments in 2025, $346.05 in all, mostly food and beverage.
Overview
| NPI | 1851314512 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 25, 2006 |
| Last updated in NPPES | Dec 21, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A53427 | 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 | 593 |
|---|---|
| Services billed | 2,756 across 33 procedure codes |
| Paid by Medicare | $177,060 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,822 · 31,337 30-day fills |
|---|---|
| Patients | 1,427 |
| Total drug cost | $1,178,458 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Brian L Nguyen MD IncSun City, CA · 3 clinicians
Other facilities
- Angelicare Home Health IncHome health agency · Chino, CA
- Horizon Valley Home Health Care IncHome health agency · Temecula, CA
- Mission Home Health of San Diego LLCHome health agency · San Diego, CA
- Salus Home HealthHome health agency · Irvine, CA
- Valley Care Home Health Services, IncHome health agency · Temecula, CA
- Salus HospiceHospice · Irvine, CA
Industry payments (Open Payments)
- 2025$346.05 · 17 payments from 14 companies
- 2024$1,539 · 23 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $58.22 | 3 |
| Merck Sharp & Dohme LLC | $36.01 | 2 |
| Eisai Inc. | $32.19 | 1 |
| Edwards Lifesciences Corporation | $31.28 | 1 |
| Astellas Pharma US Inc | $22.92 | 1 |
What the 2025 payments were for
- Food and Beverage$346.05 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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