Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Stephen D Defriez, DO

Individual provider Diagnostic Radiology Physician · NPI 1639111966

Stephen D Defriez, DO practises Diagnostic Radiology in Flint, Michigan. Qualified in 1994, 32 years ago. Practices with Acadiana Radiology Group, a 51-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Michigan, Texas and Virginia.

Years since qualifying
32
Licensed in
MI, TX, VA
In the registry since
2006
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

501 S Ballenger Hwy Ste B
Flint, MI 48532-3641
Phone: (810) 342-4800
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 2239 Lost Oak Ct, Grand Blanc, MI 48439-2523 — (810) 348-7604
  • 602 Indiana Ave, Lubbock, TX 79415-3364 — (806) 775-8600

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 5101014531 (MI)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 0102207752 (VA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence U4071 (TX)

Record details

NPI number1639111966
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 12, 2006
Last updated in NPPESOctober 6, 2026
Certification dateOctober 6, 2026

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Also practisesINTERVENTIONAL RADIOLOGY, NUCLEAR MEDICINE
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice Acadiana Radiology Group — 51 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations31 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 patients2,124
Services billed 3,588 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Acadiana Radiology Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 51 clinicians in the practice; 12 are shown here.

Other providers in Flint