Doctor profile · Federal record
Dr. Hilary Nwosu, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Pediatric Emergency Medicine (Emergency Medicine) Physician · Los Angeles, CA
- NPI 1255473625
- Accepts Medicare
- 34 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
5850 S Main St
Los Angeles, CA 900031215
(323) 846-4312 - Additional location
-
1005 Broadway St
Quincy, IL 623012834
(217) 223-1200
fax (217) 223-6894 - Mailing address
-
5757 S Staples St, Apt. # 4109
Corpus Christi, TX 784133732
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- June 11, 2025
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (3)
- Louisiana #MD.207300 · Illinois #036150585 · California #A84336
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255473625. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
364
Distinct HCPCS
4
Medicare allowed
$58,187
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 245 | 242 | $179 | |
99284 |
Emergency department visit with moderate level of medical decision making | 77 | 76 | $120 | |
99283 |
Emergency department visit with low level of medical decision making | 28 | 28 | $73 | |
99291 |
Critical care, first 30-74 minutes | 14 | 14 | $217 |
In context: peer comparison
Among 185 peers in Los Angeles Emergency Medicine Physician, average services per provider: 87. This provider delivers 4.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
74
Patients
71
Total drug cost
$600
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 19 | 17 | $186 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 17 | 16 | $182 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 15 | 15 | $76 |
| Ondansetron Odt (Ondansetron) | Brand | 12 | 12 | $88 |
| Mupirocin | Generic | 11 | 11 | $69 |
Hospital affiliations
Frequently asked questions
What is Dr. Hilary Nwosu's medical specialty?
Dr. Hilary Nwosu practices Emergency Medicine Physician in Los Angeles, CA.
Where does Dr. Hilary Nwosu practice?
Dr. Hilary Nwosu practices at 5850 S Main St, Los Angeles, CA 900031215. Office phone: 3238464312.
What is Dr. Hilary Nwosu's NPI?
Dr. Hilary Nwosu's National Provider Identifier (NPI) is 1255473625, issued by NPPES.
Does Dr. Hilary Nwosu accept Medicare assignment?
Yes. Dr. Hilary Nwosu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hilary Nwosu commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.