JOHN CLIFFORD TREANOR (M.D.) – Diagnostic Radiology Physician, NPI 1114006145
Diagnostic Radiology Physician
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Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,121 DIAGNOSTIC RADIOLOGY in IL
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Provider Addresses for JOHN CLIFFORD TREANOR (M.D.)
Northwestern Medicine Central DuPage Hospital, 25, North Winfield Road, Geneva Road, Winfield, DuPage County, Illinois, 60190, United States
WINFIELD, IL 60190
Phone: (630) 933-4240
Type: Location
3132, Treesdale Court, Naperville, Wheatland Township, Will County, Illinois, 60564, United States
NAPERVILLE, IL 60564
Phone: (630) 922-9259
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-03-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20090312000432 | I | Diagnostic Radiology | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 71045 | X-ray of chest, 1 view | 604 | 510 | $0 |
| 71046 | X-ray of chest, 2 views | 337 | 326 | $0 |
| 74177 | Ct scan of abdomen and pelvis with contrast | 284 | 273 | $0 |
| 70450 | Ct scan head or brain without contrast | 205 | 198 | $0 |
| 71250 | Ct scan of chest without contrast | 187 | 183 | $0 |
Insurance plans in this area (ZIP 60190)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | IL | 71010 | X-ray of chest, 1 view, front | 714 | 574 |
| DIAGNOSTIC RADIOLOGY | IL | 73110 | X-ray of wrist, minimum of 3 views | 20 | 18 |
| DIAGNOSTIC RADIOLOGY | IL | 73140 | X-ray of fingers, minimum of 2 views | 19 | 18 |
| DIAGNOSTIC RADIOLOGY | IL | 73630 | X-ray of foot, minimum of 3 views | 55 | 47 |
| DIAGNOSTIC RADIOLOGY | IL | 93971 | Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers | 67 | 67 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | WI | |
| Diagnostic Radiology | MI | |
| Diagnostic Radiology | IL | |
| Diagnostic Radiology | IL | |
| Diagnostic Radiology | IL | |
| Diagnostic Radiology | AL | |
| Diagnostic Radiology | IL | |
| Diagnostic Radiology | IL | |
| Diagnostic Radiology | IL | |
| - | IL |
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