David Hao Chen, MD
NPI 1295315489ActiveIndividual· Internal Medicine· Downey, CA
Internal Medicine (MD) in Downey, California, licensed in CA, with an NPI issued in April 2021. Part D covered 318 prescriptions written in 2024, 81% of them generic. Medtronic, Inc. was the largest of 2 companies reporting payments in 2025, $373.54 in all, mostly food and beverage.
Overview
| NPI | 1295315489 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 12, 2021 |
| Last updated in NPPES | Nov 15, 2025 |
| Certified by provider | Nov 15, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A195013 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 318 · 502 30-day fills |
|---|---|
| Patients | 102 |
| Total drug cost | $29,935 |
| Generic share | 81% of claims |
Industry payments (Open Payments)
- 2025$373.54 · 6 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $202.42 | 3 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $171.12 | 3 |
What the 2025 payments were for
- Food and Beverage$373.54 · 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