Physician Profile
Based in Charlotte, NC, Gregory John Duellman, D.O. is listed in the NPI registry under diagnostic radiology. Gregory graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 2002. Medicare claims data shows Gregory provided 3,269 services to 2,714 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
14121 LISSADELL CIR
Charlotte, NC 28277
3,269 services · 2,714 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| X-ray of chest, 1 view | Imaging | 71045 |
1,327 |
| Ct scan head or brain without contrast | Imaging | 70450 |
455 |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
229 |
| Ct scan of upper spine without contrast | Imaging | 72125 |
168 |
| X-ray of abdomen, 1 view | Imaging | 74018 |
122 |
| Ct scan of abdomen and pelvis without contrast | Imaging | 74176 |
101 |
| Ct scan of blood vessels of chest with contrast | Imaging | 71275 |
83 |
| X-ray of chest, 2 views | Imaging | 71046 |
74 |
| X-ray of pelvis, 1-2 views | Imaging | 72170 |
71 |
| Ct scan of chest with contrast | Imaging | 71260 |
64 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Duellman is a diagnostic radiology in Charlotte, NC. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DIAGNOSTIC RADIOLOGY”.
NPI registry
Dr. Duellman is listed at 14121 LISSADELL CIR, Charlotte, NC 28277. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (704) 975-9730. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Duellman's National Provider Identifier is 1417029455. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Duellman attended Des Moines University of Osteopathic Medicine and Health Sciences, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
Dr. Duellman has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Duellman performs imaging including x-ray of chest, 1 view and ct scan head or brain without contrast; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers and ultrasound study of arm or leg veins with compression and maneuvers. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Duellman. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.