Thu Thuy Terri Huynh, M.D.
NPI 1740343367ActiveIndividual· Internal Medicine· Westminster, CA
Internal Medicine (M.D.) with Physician Partners Medical Group Inc, practicing in Westminster, California. Their prescriptions cost Medicare Part D more than their services did: $3,184,002 for 25,127 claims, against $736,920 paid for services in 2024. Amgen Inc. was the largest of 20 companies reporting payments in 2025, $3,195 in all, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian and 1 other hospital as hospital affiliations.
Overview
| NPI | 1740343367 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Dec 18, 2006 |
| Last updated in NPPES | May 5, 2022 |
| Certified by provider | May 5, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A93982 | 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 | 508 |
|---|---|
| Services billed | 22,886 across 44 procedure codes |
| Paid by Medicare | $736,920 |
Part D prescriptions in 2024
| Prescriptions (claims) | 25,127 · 48,108 30-day fills |
|---|---|
| Patients | 844 |
| Total drug cost | $3,184,002 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | General Practice |
Medical group
- Physician Partners Medical Group IncWestminster, CA · 2 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
Other facilities
- 24/7 Care at Home - Home HealthHome health agency · Westminster, CA
- Advantage Health SystemsHome health agency · Costa Mesa, CA
- Alta Home Health Care Services, Inc.Home health agency · Garden Grove, CA
Industry payments (Open Payments)
- 2025$3,195 · 102 payments from 20 companies
- 2024$1,769 · 67 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $1,157 | 28 |
| Abbvie Inc. | $275.10 | 15 |
| Aimmune Therapeutics, Inc. | $267.38 | 12 |
| Sumitomo Pharma America, Inc. | $262.87 | 7 |
| Bayer Healthcare Pharmaceuticals Inc. | $246.80 | 9 |
What the 2025 payments were for
- Food and Beverage$3,195 · 102 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Westminster
- 1003900366
- 1023081387
- 1023181658
- 1093701690
- 1104067925
- 1134123961
- 1255376414
- 1275561417
- 1386698660
- 1548223712
- 1548404304
- 1548479140
All 74 internal medicine physicians in Westminster · All internal medicine physicians in California