Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Nicholas Gregory Iwasko, MD

Individual provider Diagnostic Radiology Physician · NPI 1285649863

Dr. Nicholas Gregory Iwasko, MD practises Diagnostic Radiology in Dallas, Texas. Graduated from University of Miami, Lm Miller School of Medicine in 1995, 31 years ago. Practices with Memorial MRI and Diagnostic LLC, a 75-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
31
Trained at
University of Miami, Lm Miller School of Medicine
Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4420 Cedarbrush Dr
Dallas, TX 75229-2901
Phone: (352) 222-7431
Fax: (972) 542-6915
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence L3347 (TX)

Record details

NPI number1285649863
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 30, 2006
Last updated in NPPESNovember 10, 2021
Certification dateOctober 25, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF MIAMI, LM MILLER SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Memorial Mri And Diagnostic Llc — 75 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients45
Services billed 93 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Memorial MRI and Diagnostic LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 75 clinicians in the practice; 12 are shown here.

Other providers in Dallas