Doctor profile · Federal record
Dr. William O'Brien, MD
Surgery Physician (CMS: General Surgery) · Aurora, IL
- NPI 1831101955
- Accepts Medicare
- 37 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1221 N Highland Ave
Aurora, IL 605061404
(630) 859-8700 - Mailing address
-
2357 Sequoia Dr
Aurora, IL 605066222
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- November 18, 2021
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- Illinois #036-092894
- Medicaid
- IL #036092894
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831101955. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
720
Distinct HCPCS
10
Medicare allowed
$124,375
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93880 |
Ultrasound of both sides of head and neck blood flow | 230 | 230 | $201 | |
93970 |
Ultrasound study of arm or leg veins with compression and maneuvers | 98 | 94 | $200 | |
93925 |
Ultrasound of leg arteries or artery grafts | 63 | 63 | $250 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 56 | 32 | $56 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 50 | 50 | $117 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 36 | 29 | $82 | |
12032 |
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm | 31 | 27 | $270 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 28 | 28 | $174 | |
11603 |
Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm | 26 | 19 | $182 | |
11602 |
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm | 22 | 16 | $137 |
In context: peer comparison
Among 8 peers in this city , average services per provider: 47. This provider delivers 15× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
71
Patients
70
Total drug cost
$198
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 49 | 48 | $159 |
| Acetaminophen-Codeine (Acetaminophen With Codeine) | Brand | 22 | 22 | $38 |
Frequently asked questions
What is Dr. William O'Brien's medical specialty?
Dr. William O'Brien practices Surgery Physician in Aurora, IL.
Where does Dr. William O'Brien practice?
Dr. William O'Brien practices at 1221 N Highland Ave, Aurora, IL 605061404. Office phone: 6308598700.
What is Dr. William O'Brien's NPI?
Dr. William O'Brien's National Provider Identifier (NPI) is 1831101955, issued by NPPES.
Does Dr. William O'Brien accept Medicare assignment?
Yes. Dr. William O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William O'Brien commonly perform?
Top Medicare-reported procedures in 2023: Ultrasound of both sides of head and neck blood flow (HCPCS 93880); Ultrasound study of arm or leg veins with compression and maneuvers (HCPCS 93970); Ultrasound of leg arteries or artery grafts (HCPCS 93925). Source: CMS Medicare Physician & Other Practitioners file.