Thanh-Tam Ngoc Nguyen, D.O.
NPI 1902145592ActiveIndividual· Family Medicine· Morgan Hill, CA
Family Medicine (D.O.) with Bass Medical Group, practicing in Morgan Hill, California. Their prescriptions cost Medicare Part D more than their services did: $283,026 for 2,832 claims, against $58,580 paid for services in 2024. Pfizer Inc. was the largest of 8 companies reporting payments in 2025, $568.89 in all, mostly food and beverage.
Overview
| NPI | 1902145592 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Feb 3, 2013 |
| Last updated in NPPES | Feb 28, 2025 |
| Certified by provider | Feb 28, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 20A12623 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 222 |
|---|---|
| Services billed | 780 across 43 procedure codes |
| Paid by Medicare | $58,580 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,832 · 6,603 30-day fills |
|---|---|
| Patients | 461 |
| Total drug cost | $283,026 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Bass Medical GroupChico, CA · 291 clinicians
Industry payments (Open Payments)
- 2025$568.89 · 25 payments from 8 companies
- 2024$770.89 · 54 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $221.21 | 7 |
| Amgen Inc. | $152.44 | 9 |
| Sumitomo Pharma America, Inc. | $47.42 | 2 |
| Glaxosmithkline, LLC. | $39.43 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $35.15 | 2 |
What the 2025 payments were for
- Food and Beverage$568.89 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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