Thanh The Nguyen, D.O
Internal Medicine, Interventional Cardiology (D.O) in Glendale, California, trained at College of Osteo Med of the Pacific at Pomona (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $1,007,877 for 7,147 claims, against $348,021 paid for services in 2024. Abbott Laboratories was the largest of 11 companies reporting payments in 2025, $4,999 in all, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1134165194 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O |
| Sole proprietor | No |
| NPI issued | Jun 20, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 20A7029 | CA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Thanh Ngoc Nguyen · Personal Care Provid | 1128a1 | Jul 20, 2017 | Elk Grove, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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 - Cardiovascular Disease (Cardiology) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,001 |
|---|---|
| Services billed | 5,179 across 62 procedure codes |
| Paid by Medicare | $348,021 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,147 · 18,048 30-day fills |
|---|---|
| Patients | 861 |
| Total drug cost | $1,007,877 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | College of Osteo Med of the Pacific at Pomona |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical group
- Adventist Health Physicians NetworkSaint Helena, CA · 628 clinicians
Hospital affiliations
- Adventist Health Simi ValleySimi Valley, CA
- Glendale Adventist Medical CenterGlendale, CA
- Los Robles Hospital & Medical CenterThousand Oaks, CA
Industry payments (Open Payments)
- 2025$4,999 · 105 payments from 11 companies
- 2024$6,963 · 124 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $2,157 | 40 |
| Medtronic, Inc. | $727.03 | 21 |
| Abiomed | $704.30 | 14 |
| Boston Scientific Corporation | $490.11 | 7 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $426.46 | 10 |
What the 2025 payments were for
- Food and Beverage$4,889 · 104 payments
- Travel and Lodging$109.92 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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