Doctor profile · Federal record
Dr. WILLIAM BARKER, MD
Emergency Medical Services (Emergency Medicine) Physician · WARRENTON, VA
- NPI 1770599847
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
500 HOSPITAL DR
WARRENTON, VA 201863027
(540) 349-0595
fax (540) 349-0587 - Mailing address
-
PO BOX 223323
CHANTILLY, VA 201533323
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- April 30, 2008
- Specialty taxonomy
- 207PE0004X — NUCC code
- State license (1)
- Virginia #0101036994
- Medicaid (2)
- VA #006028608 · VA #010055601
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770599847. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
207
Distinct HCPCS
4
Medicare allowed
$34,683
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 95 | 92 | $133 | |
99285 |
Emergency department visit with high level of medical decision making | 52 | 51 | $190 | |
99291 |
Critical care, first 30-74 minutes | 47 | 47 | $236 | |
99283 |
Emergency department visit with low level of medical decision making | 13 | 12 | $79 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 86. This provider delivers 2.4× the peer median.