DR. NICHOLAS GREGORY IWASKO (M.D.) – Diagnostic Radiology Physician, NPI 1285649863
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,303 DIAGNOSTIC RADIOLOGY in TX
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Provider Addresses for DR. NICHOLAS GREGORY IWASKO (M.D.)
1200, Chancellor Lane, McKinney, Collin County, Texas, 75072, United States
MCKINNEY, TX 750709097
Phone: (972) 542-7585
Fax: (972) 542-6915
Type: Mailing
4420 CEDARBRUSH DR
DALLAS, TX 752292901
Phone: (352) 222-7431
Fax: (972) 542-6915
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2021-03-08
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20050412000789 | I | Diagnostic Radiology | TX | TBD |
| I20210308000122 | I | Diagnostic Radiology | VA | 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 |
|---|---|---|---|---|
| 73721 | Mri scan of leg joint without contrast | 161 | 154 | $0 |
| 73221 | Mri scan of arm joint without contrast | 89 | 85 | $0 |
| 72148 | Mri scan of lower spinal canal without contrast | 38 | 38 | $0 |
| 72141 | Mri scan of upper spinal canal without contrast | 23 | 23 | $0 |
| 73718 | Mri scan of leg without contrast | 16 | 15 | $0 |
Insurance plans in this area (ZIP 75070)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Anesthesiology, Interventional Pain Management | TX | |
| Diagnostic Radiology | TX | |
| Cardiovascular Disease (Cardiology), Internal Medicine | TX | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | TX | |
| N E U R O L O G Y | TX | |
| Interventional Radiology, Diagnostic Radiology | CA | |
| N E U R O L O G Y | TX | |
| Diagnostic Radiology | FL | |
| - | TX |
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