Doctor profile · Federal record
Dr. Louis Chau, M.D.
Emergency Medicine Physician · Corona, CA
- NPI 1225144918
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
800 S Main St
Corona, CA 928823420
(909) 736-6241
fax (909) 736-6283 - Mailing address
-
2100 Powell St, Suite 900
Emeryville, CA 946081826
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- December 3, 2021
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A64423
- Medicaid
- CA #00A644230
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225144918. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
11
Distinct HCPCS
1
Medicare allowed
$1,374
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 11 | 11 | $125 |
In context: peer comparison
Among 6 peers in this city , average services per provider: 113. This provider delivers 0.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
32
Patients
32
Total drug cost
$297
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 20 | 20 | $211 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 12 | 12 | $87 |
Frequently asked questions
What is Dr. Louis Chau's medical specialty?
Dr. Louis Chau practices Emergency Medicine Physician in Corona, CA.
Where does Dr. Louis Chau practice?
Dr. Louis Chau practices at 800 S Main St, Corona, CA 928823420. Office phone: 9097366241.
What is Dr. Louis Chau's NPI?
Dr. Louis Chau's National Provider Identifier (NPI) is 1225144918, issued by NPPES.
What procedures does Dr. Louis Chau commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.