Tan V. Nguyen, MD
NPI 1093705485ActiveIndividual· Family Medicine· Woodland, CA
Family Medicine (MD) in Woodland, California, trained at Tufts University School of Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $198,496 for 2,512 claims, against $44,118 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2025, $36.85 in all, mostly food and beverage.
Overview
| NPI | 1093705485 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 26, 2005 |
| Last updated in NPPES | Feb 16, 2024 |
| Certified by provider | Feb 16, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A88448 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 179 |
|---|---|
| Services billed | 686 across 41 procedure codes |
| Paid by Medicare | $44,118 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,512 · 5,093 30-day fills |
|---|---|
| Patients | 303 |
| Total drug cost | $198,496 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Sutter Valley Medical FoundationModesto, CA · 2,500 clinicians
Hospital affiliations
- Sutter Davis HospitalDavis, CA
- Sutter Medical Center, SacramentoSacramento, CA
Other facilities
- Sutter Care at HomeHome health agency · Sacramento, CA
Industry payments (Open Payments)
- 2025$36.85 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $21.68 | 1 |
| Exact Sciences Corporation | $15.17 | 1 |
What the 2025 payments were for
- Food and Beverage$36.85 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 family medicine physicians in Woodland · All family medicine physicians in California