Tien Trinh, M.D.
NPI 1881791135ActiveIndividual· Internal Medicine· San Jose, CA
Internal Medicine (M.D.) in San Jose, California, trained at Js Weill Medical College, Cornell University (class of 1993). In 2024 Medicare paid $602,236 for 846 patients, and Part D covered 8,318 of their prescriptions, 86% of them generic. Otsuka America Pharmaceutical, Inc. was the largest of 2 companies reporting payments in 2025, $34.51 in all, mostly food and beverage.
Overview
| NPI | 1881791135 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 20, 2006 |
| Last updated in NPPES | May 24, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G79654 | 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); Practitioner - Internal Medicine (GU) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 846 |
|---|---|
| Services billed | 9,655 across 77 procedure codes |
| Paid by Medicare | $602,236 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,318 · 8,975 30-day fills |
|---|---|
| Patients | 314 |
| Total drug cost | $459,252 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Js Weill Medical College, Cornell University |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- American Medical Center, LLCTamuning, GU · 18 clinicians
Other facilities
- Guam Visiting NursesHome health agency · Tamuning, GU
- Health Services of the Pacific - Home CareHome health agency · Barrigada, GU
- The Win Post-AcuteNursing home · Santa Clara, CA
Industry payments (Open Payments)
- 2025$34.51 · 2 payments from 2 companies
- 2024$28.86 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $19.80 | 1 |
| Abbott Laboratories | $14.71 | 1 |
What the 2025 payments were for
- Food and Beverage$34.51 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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