Physician Profile
Unclaimed ProfileAbout O'NEIL
Based in Downers Grove, IL, Howard K. O'Neil, M.D. is listed in the NPI registry under diagnostic radiology. Howard graduated from University of Wisconsin School of Medicine in 1987. According to Medicare claims data, Howard cared for 1,727 Medicare patients across 1,811 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (630) 275-5900
- Email not available
Practice Locations
3815 HIGHLAND AVE RADIOLOGY DEPARTMENT
Downers Grove, IL 60515
Procedures Most Often Billed to Medicare
1,811 services · 1,727 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| X-ray of chest, 1 view | Imaging | 71045 |
368 |
| Ct scan head or brain without contrast | Imaging | 70450 |
178 |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
177 |
| X-ray of chest, 2 views | Imaging | 71046 |
143 |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
84 |
| X-ray of abdomen, 1 view | Imaging | 74018 |
65 |
| Ct scan of upper spine without contrast | Imaging | 72125 |
65 |
| Limited ultrasound scan of abdomen | Imaging | 76705 |
60 |
| Ct scan of abdomen and pelvis without contrast | Imaging | 74176 |
56 |
| X-ray of knee, 3 views | Imaging | 73562 |
53 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other diagnostic radiology specialists at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 28 related providers in 4 groups
Other diagnostic radiology specialists in Downers Grove 4
Same specialty, same city.
Trained at University of Wisconsin School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at University of Wisconsin School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs X-ray of chest, 1 view 8
Providers in IL who bill this service to Medicare most often.
Common questions
What is Dr. O'Neil's specialty?
Dr. O'Neil is a diagnostic radiology in Downers Grove, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DIAGNOSTIC RADIOLOGY”.
NPI registry
Where can I find Dr. O'Neil?
Dr. O'Neil is listed at 3815 HIGHLAND AVE RADIOLOGY DEPARTMENT, Downers Grove, IL 60515. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. O'Neil?
The number on file is (630) 275-5900. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. O'Neil's NPI number?
Dr. O'Neil's National Provider Identifier is 1194701730. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. O'Neil's medical education?
Dr. O'Neil attended University of Wisconsin School of Medicine, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. O'Neil been practicing?
Dr. O'Neil has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What is Dr. O'Neil known for?
According to Medicare billing data, Dr. O'Neil performs imaging including x-ray of chest, 1 view and ct scan head or brain without contrast; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers and ultrasound study of arm or leg veins with compression and maneuvers. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. O'Neil confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Neil. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.