Louis T. Chau, M.D.
NPI 1225144918ActiveIndividual· Emergency Medicine· Corona, CA
Emergency Medicine (M.D.) in Corona, California, licensed in CA, with an NPI issued in August 2006. In 2024 Medicare paid $2,285 for 30 patients, and Part D covered 126 of their prescriptions, 89% of them generic.
Overview
| NPI | 1225144918 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 22, 2006 |
| Last updated in NPPES | Dec 3, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A64423 | 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 - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 30 |
|---|---|
| Services billed | 30 across 3 procedure codes |
| Paid by Medicare | $2,285 |
Part D prescriptions in 2024
| Prescriptions (claims) | 126 · 145 30-day fills |
|---|---|
| Patients | 101 |
| Total drug cost | $2,755 |
| Generic share | 89% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other emergency medicine physicians in Corona
- 1134507486
- 1316500408
- 1437785573
- 1821625955
- 1952403396
- 1275824799
- 1316407323
- 1932762788
- 1124032248
- 1659661163
- 1134629298
- 1184730855
All 18 emergency medicine physicians in Corona · All emergency medicine physicians in California