Doctor profile · Federal record
Dr. William Keenan, M.D.
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Body Imaging Physician · Neuroradiology Physician · Nuclear Radiology Physician · Pediatric Radiology Physician · Vascular & Interventional Radiology Physician · Diagnostic Ultrasound Physician · Hoffman Estates, IL
- NPI 1366547259
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1555 Barrington RD
Hoffman Estates, IL 601941019
(847) 843-2000 - Mailing address
-
Po Box 1690
Woodstock, IL 600981690
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- March 14, 2012
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- Illinois #036084949
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366547259. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,186
Distinct HCPCS
10
Medicare allowed
$136,159
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
71045 |
X-ray of chest, 1 view | 583 | 510 | $9 | |
70450 |
Ct scan head or brain without contrast | 236 | 226 | $41 | |
74176 |
Ct scan of abdomen and pelvis without contrast | 142 | 136 | $85 | |
70551 |
Mri scan of brain without contrast | 126 | 118 | $73 | |
70553 |
Mri scan of brain before and after contrast | 121 | 118 | $113 | |
93971 |
Ultrasound study of one arm or leg veins with compression and maneuvers | 116 | 114 | $22 | |
72148 |
Mri scan of lower spinal canal without contrast | 111 | 111 | $72 | |
74177 |
Ct scan of abdomen and pelvis with contrast | 100 | 97 | $90 | |
71046 |
X-ray of chest, 2 views | 99 | 98 | $11 | |
72125 |
Ct scan of upper spine without contrast | 89 | 87 | $48 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 54. This provider delivers 59× the peer median.Frequently asked questions
What is Dr. William Keenan's medical specialty?
Dr. William Keenan practices Diagnostic Radiology Physician in Hoffman Estates, IL.
Where does Dr. William Keenan practice?
Dr. William Keenan practices at 1555 Barrington RD, Hoffman Estates, IL 601941019. Office phone: 8478432000.
What is Dr. William Keenan's NPI?
Dr. William Keenan's National Provider Identifier (NPI) is 1366547259, issued by NPPES.
Does Dr. William Keenan accept Medicare assignment?
Yes. Dr. William Keenan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Keenan commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450); Ct scan of abdomen and pelvis without contrast (HCPCS 74176). Source: CMS Medicare Physician & Other Practitioners file.