Toan Quoc Tran, M.D.
NPI 1588683031ActiveIndividual· Internal Medicine· Milpitas, CA
Internal Medicine (M.D.) in Milpitas, California, licensed in CA, with an NPI issued in July 2006. Their prescriptions cost Medicare Part D more than their services did: $856,193 for 9,460 claims, against $49,455 paid for services in 2024. Gilead Sciences, Inc. reported $131.57 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1588683031 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 18, 2006 |
| Last updated in NPPES | Sep 28, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A72332 | 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 | 141 |
|---|---|
| Services billed | 585 across 11 procedure codes |
| Paid by Medicare | $49,455 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,460 · 22,153 30-day fills |
|---|---|
| Patients | 596 |
| Total drug cost | $856,193 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | General Practice |
Industry payments (Open Payments)
- 2025$131.57 · 1 payment from 1 company
- 2024$169.22 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $131.57 | 1 |
What the 2025 payments were for
- Food and Beverage$131.57 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 43 internal medicine physicians in Milpitas · All internal medicine physicians in California