Christine Uyen Nguyen, M.D.
NPI 1114947405ActiveIndividual· Internal Medicine· Menifee, CA
Internal Medicine (M.D.) in Menifee, California, trained at University of California, Geffen School of Medicine (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $334,688 for 4,924 claims, against $28,450 paid for services in 2024. Eisai Inc. was the largest of 4 companies reporting payments in 2025, $98.18 in all, mostly food and beverage.
Overview
| NPI | 1114947405 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 20, 2006 |
| Last updated in NPPES | Mar 22, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A64451 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 122 |
|---|---|
| Services billed | 368 across 18 procedure codes |
| Paid by Medicare | $28,450 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,924 · 11,734 30-day fills |
|---|---|
| Patients | 612 |
| Total drug cost | $334,688 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Brian L Nguyen MD IncSun City, CA · 3 clinicians
Industry payments (Open Payments)
- 2025$98.18 · 4 payments from 4 companies
- 2024$188.84 · 9 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Eisai Inc. | $32.19 | 1 |
| Edwards Lifesciences Corporation | $31.28 | 1 |
| Esperion Therapeutics, Inc. | $17.65 | 1 |
| Merck Sharp & Dohme LLC | $17.06 | 1 |
What the 2025 payments were for
- Food and Beverage$98.18 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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