Tung T. Nguyen, MD
NPI 1003871724ActiveIndividual· Internal Medicine· San Francisco, CA
Internal Medicine (MD) in San Francisco, California, trained at Stanford University School of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $89,955 for 903 claims, against $6,498 paid for services in 2024. Aimmune Therapeutics, Inc. reported $32.87 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1003871724 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 18, 2006 |
| Last updated in NPPES | Jun 10, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G75840 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 51 |
|---|---|
| Services billed | 105 across 7 procedure codes |
| Paid by Medicare | $6,498 |
Part D prescriptions in 2024
| Prescriptions (claims) | 903 · 2,153 30-day fills |
|---|---|
| Patients | 82 |
| Total drug cost | $89,955 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
Hospital affiliation
- UCSF Medical CenterSan Francisco, CA
Other facilities
- Sequoia Home HealthHome health agency · Milpitas, CA
Industry payments (Open Payments)
- 2025$32.87 · 1 payment from 1 company
- 2024$17.30 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aimmune Therapeutics, Inc. | $32.87 | 1 |
What the 2025 payments were for
- Food and Beverage$32.87 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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