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

Dr. Gregory John Duellman, DO

Individual provider Diagnostic Radiology Physician · NPI 1417029455

Dr. Gregory John Duellman, DO is a Diagnostic Radiology in Charlotte, North Carolina. Graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 2002, 24 years ago. Practices with Gaston Radiology PA, a 29-clinician group and accepts Medicare assignment. Licensed in North Carolina and Ohio.

Years since qualifying
24
Trained at
Des Moines University of Osteopathic Medicine and Health Sciences
Licensed in
NC, OH
In the registry since
2006
Specialties on file
2
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

14121 Lissadell Cir
Charlotte, NC 28277-3137
Phone: (704) 975-9730
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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 34.008149 (OH)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 2007-00979 (NC)

Record details

NPI number1417029455
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedNovember 14, 2006
Last updated in NPPESJune 20, 2019

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolDES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Graduated 2002 (24 years in practice)
Group practice Gaston Radiology Pa — 29 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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