Hung H. Dinh, D.O.
Internal Medicine (D.O.) in Downey, California, trained at Arizona College of Osteopathic Medicine Mid Western University (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $31,258 for 489 claims, against $4,465 paid for services in 2024. Lundbeck LLC was the largest of 3 companies reporting payments in 2025, $141.76 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 | 1386978914 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Sep 30, 2009 |
| Last updated in NPPES | Dec 3, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A13922 | CA |
| Internal Medicine | 207R00000X | OS11762 | FL |
| Internal Medicine | 207R00000X | UO 2247 | FL |
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 | Hung Tien Dinh · General Practice/Fp | 1128a1 | Jul 1, 1985 | Cerritos, 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 23 |
|---|---|
| Services billed | 66 across 5 procedure codes |
| Paid by Medicare | $4,465 |
Part D prescriptions in 2024
| Prescriptions (claims) | 489 · 678 30-day fills |
|---|---|
| Patients | 190 |
| Total drug cost | $31,258 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Arizona College of Osteopathic Medicine Mid Western University |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospitalist |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Hospital affiliation
- Kaiser Foundation Hospital - DowneyDowney, CA
Industry payments (Open Payments)
- 2025$141.76 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lundbeck LLC | $83.47 | 4 |
| Ge Healthcare | $31.07 | 1 |
| Grifols USA, LLC | $27.22 | 1 |
What the 2025 payments were for
- Food and Beverage$141.76 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 129 internal medicine physicians in Downey · All internal medicine physicians in California