Doctor profile · Federal record
Dr. Corinne O'Brien
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Greenville, IL
- NPI 1922328467
- Accepts Medicare
- MIPS 83.7 / 100 · 2023
- 16 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
200 Health Care Dr
Greenville, IL 622461154
(618) 664-1230 - Additional location
-
10010 Kennerly RD
Saint Louis, MO 631282106
(314) 525-1906 - Mailing address
-
10010 Kennerly RD
Saint Louis, MO 631282106
Credentials & registration
- NPI registered
- June 2010 — 16 yrs on file
- Profile last updated
- May 10, 2019
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Illinois #036148835 · Missouri #2013021968
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922328467. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
486
Distinct HCPCS
4
Medicare allowed
$70,829
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 279 | 271 | $172 | |
99291 |
Critical care, first 30-74 minutes | 88 | 84 | $208 | |
93042 |
Electrocardiogram (ecg) 1 to 3 leads with review by physician only | 84 | 83 | $7 | |
99284 |
Emergency department visit with moderate level of medical decision making | 35 | 35 | $118 |
In context: peer comparison
Among 15 peers in Greenville Emergency Medicine Physician, average services per provider: 111. This provider delivers 4.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
50
Patients
50
Total drug cost
$306
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 20 | 20 | $79 |
| Cyclobenzaprine Hcl | Generic | 16 | 16 | $106 |
| Ondansetron Odt (Ondansetron) | Brand | 14 | 14 | $121 |
Frequently asked questions
What is Dr. Corinne O'Brien's medical specialty?
Dr. Corinne O'Brien practices Emergency Medicine Physician in Greenville, IL.
Where does Dr. Corinne O'Brien practice?
Dr. Corinne O'Brien practices at 200 Health Care Dr, Greenville, IL 622461154. Office phone: 6186641230.
What is Dr. Corinne O'Brien's NPI?
Dr. Corinne O'Brien's National Provider Identifier (NPI) is 1922328467, issued by NPPES.
Does Dr. Corinne O'Brien accept Medicare assignment?
Yes. Dr. Corinne O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Corinne O'Brien 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.