Christine Khue Nguyen, MD
NPI 1750483590ActiveIndividual· Internal Medicine· Vista, CA
Internal Medicine (MD) in Vista, California, trained at University of Texas Medical Branch at Galveston (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $501,072 for 4,710 claims, against $80,323 paid for services in 2024. Biogen, Inc. was the largest of 3 companies reporting payments in 2025, $58.68 in all, mostly food and beverage.
Overview
| NPI | 1750483590 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 2, 2006 |
| Last updated in NPPES | Oct 3, 2025 |
| Certified by provider | Oct 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A51750 | 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 | 296 |
|---|---|
| Services billed | 2,220 across 51 procedure codes |
| Paid by Medicare | $80,323 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,710 · 11,485 30-day fills |
|---|---|
| Patients | 441 |
| Total drug cost | $501,072 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Uc San Diego Health Community GroupSan Diego, CA · 109 clinicians
Hospital affiliations
- Tri-City Medical CenterOceanside, CA
- Uc San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA
Other facilities
- Advantage Health SystemsHome health agency · San Diego, CA
- Archer Health IncHome health agency · Carlsbad, CA
Industry payments (Open Payments)
- 2025$58.68 · 3 payments from 3 companies
- 2024$47.42 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biogen, Inc. | $21.49 | 1 |
| Merck Sharp & Dohme LLC | $18.95 | 1 |
| Amgen Inc. | $18.24 | 1 |
What the 2025 payments were for
- Food and Beverage$58.68 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 57 internal medicine physicians in Vista · All internal medicine physicians in California