Hiep Dinh Dang, D.O.
NPI 1356328900ActiveIndividual· Family Medicine· Garden Grove, CA
Family Medicine (D.O.) in Garden Grove, California, trained at Des Moines University of Osteopathic Medicine and Health Sciences (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $1,137,932 for 7,139 claims, against $69,491 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 16 companies reporting payments in 2025, $1,773 in all, mostly food and beverage.
Overview
| NPI | 1356328900 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Dec 26, 2005 |
| Last updated in NPPES | Jun 9, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 20A7061 | 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 | 205 |
|---|---|
| Services billed | 1,060 across 15 procedure codes |
| Paid by Medicare | $69,491 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,139 · 15,836 30-day fills |
|---|---|
| Patients | 386 |
| Total drug cost | $1,137,932 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Des Moines University of Osteopathic Medicine and Health Sciences |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Family Practice |
Medical group
- Family Choice ACO IncWestminster, CA · 55 clinicians
Hospital affiliation
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
Industry payments (Open Payments)
- 2025$1,773 · 80 payments from 16 companies
- 2024$1,285 · 63 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $454.32 | 30 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $208.69 | 5 |
| Lilly USA, LLC | $161.92 | 7 |
| Abbvie Inc. | $157.02 | 3 |
| Gilead Sciences, Inc. | $120.60 | 4 |
What the 2025 payments were for
- Food and Beverage$1,773 · 80 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 104 family medicine physicians in Garden Grove · All family medicine physicians in California