NPI age
19 years
Enumerated 2006-07-30
● Active
Type 1 · Individual
DR. Nicholas Gregory Iwasko, M.D.
Iwasko is 1 of 504 radiology providers in Dallas and 1 of 3776 in Texas.
Primary specialty
Radiology
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2021-11-10
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 3776 active radiology providers in Texas.
NPI age
19 years
≈ at median (19 yr)
State licenses
1 state
18% of peers hold multiple states
Subspecialties
0
36% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-07Enumerated in NPPES
2006
2026
Where they practice
Practice location
4420 Cedarbrush Dr
Dallas, TX 752292901
Mailing address
4420 Cedarbrush Dr
Dallas, TX 752292901
Specialties
-
Radiology PrimaryA radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (MI) | 43010774455 | MEDICAL LICENSE NUMBER |
| 01 (TX) | L3347 | MEDICAL LICENSE NUMBER |
| 01 (FL) | ME-0073118 | MEDICAL LICENSE NUMBER |
| 01 (CA) | AO68320 | MEDICAL LICENSE NUMBER |
| 01 (OH) | 35-07-8584-I | MEDICAL LICENSE NUMBER |
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
Recently enumerated nearby: 2 new radiology providers have been added in Dallas in the last 180 days.
See all →
Provyx · Custom healthcare lists
Need all 3776 Radiology providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.