Doctor profile · Federal record
Dr. Eileen Chang
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Torrance, CA
- NPI 1376746644
- Accepts Medicare
- 21 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4101 Torrance Blvd, Em Dept
Torrance, CA 905034607
(310) 540-7676 - Mailing address
-
4401 W Memorial RD Ste 121
Oklahoma City, OK 731341722
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- August 6, 2015
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- California #A111171 · Massachusetts #224652
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1376746644. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
488
Distinct HCPCS
4
Medicare allowed
$75,098
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 261 | 253 | $182 | |
99291 |
Critical care, first 30-74 minutes | 85 | 84 | $222 | |
93042 |
Electrocardiogram (ecg) 1 to 3 leads with review by physician only | 77 | 77 | $7 | |
99284 |
Emergency department visit with moderate level of medical decision making | 65 | 65 | $124 |
In context: peer comparison
Among 55 peers in Torrance Emergency Medicine Physician, average services per provider: 84. This provider delivers 5.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
378
Patients
377
Total drug cost
$3,117
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ondansetron Odt (Ondansetron) | Brand | 134 | 133 | $795 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 61 | 61 | $217 |
| Cephalexin | Generic | 60 | 60 | $473 |
| Ibuprofen | Generic | 43 | 43 | $130 |
| Lactulose | Generic | 24 | 24 | $272 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 18 | 18 | $234 |
| Furosemide | Generic | 14 | 14 | $38 |
| Cyclobenzaprine Hcl | Generic | 12 | 12 | $40 |
| Naloxone Hcl | Generic | 12 | 12 | $918 |
Frequently asked questions
What is Dr. Eileen Chang's medical specialty?
Dr. Eileen Chang practices Emergency Medicine Physician in Torrance, CA.
Where does Dr. Eileen Chang practice?
Dr. Eileen Chang practices at 4101 Torrance Blvd, Torrance, CA 905034607. Office phone: 3105407676.
What is Dr. Eileen Chang's NPI?
Dr. Eileen Chang's National Provider Identifier (NPI) is 1376746644, issued by NPPES.
Does Dr. Eileen Chang accept Medicare assignment?
Yes. Dr. Eileen Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Eileen Chang commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Critical care (HCPCS 99291); Electrocardiogram (ecg) 1 to 3 leads with review by physician only (HCPCS 93042). Source: CMS Medicare Physician & Other Practitioners file.