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Dr. Gregory John Duellman, DO

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Specializes in: Diagnostic Radiology

Kansas City University of Medicine and Biosciences (KCUMB), College of Osteopathic Medicine

2525 Court Drive
Gastonia, NC 28054

(704) 834-2000

Dr. Gregory John Duellman, DO is a diagnostic radiologist in Charlotte, NC specializing in diagnostic radiology. He graduated from Kansas City University of Medicine and Biosciences (KCUMB), College of Osteopathic Medicine. Dr. Gregory John Duellman, DO is affiliated with CaroMont Health.

Office Locations

14121 Lissadell Circle
Charlotte, NC 28277

(704) 975-9730

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CaroMont Health

2525 Court Drive
Gastonia, NC 28054

(704) 834-2000

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336 Burtonwood Drive
Gastonia, NC 28054

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Noteworthy Medicare Patient Procedures Performed by Dr. Gregory John Duellman, DO in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 10%

By Volume:

cervical spine CT scan

In 2023, Dr. Gregory John Duellman, DO performed more cervical (neck) spine CT scan procedures for Medicare patients than 90% of providers in related specialties within North Carolina.

Top 25%

By Volume:

CT scan

head/brain CT scan

lower extremity venous duplex

pelvic imaging

vascular procedures

vascular ultrasound

By Affordability:

abdominal CT scan

pelvic CT scan

X-rays

In 2012, among providers in related specialties within North Carolina, Dr. Gregory John Duellman, DO performed more CT scan, head/brain CT scan, lower extremity venous duplex, pelvic imaging, vascular procedures, and vascular ultrasound procedures for Medicare patients than 75% of them and he also had a list price for abdominal CT scan, pelvic CT scan, and X-rays that was lower than the list prices billed to Medicare by 75% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2012 were X-rays, thoracic (chest) imaging, CT scan and abdominal imaging.

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	1041
brain imaging (neuroimaging)	961
CT scan	1871
hip imaging	187
musculoskeletal imaging	501
pelvic imaging	722
spinal procedures	522
thoracic (chest) imaging	5093
ultrasound (sonogram)	966
vascular procedures	639
women's imaging	19
X-rays	6185

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2013 were X-rays, thoracic (chest) imaging, CT scan and abdominal imaging.

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	834
brain imaging (neuroimaging)	743
CT scan	1482
hip imaging	141
musculoskeletal imaging	346
pelvic imaging	550
spinal procedures	407
thoracic (chest) imaging	4612
ultrasound (sonogram)	745
vascular procedures	526
X-rays	5418

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Male	1415
Female	2121

**Ethnicity**
Non-Hispanic White	2959
Black	507
Hispanic	39
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	1084
From 75 to 84	909
85 and over	548
Less than 65	995

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2013

Hypertension	75
High Cholesterol	66
Stroke	13
Ischemic Heart Disease	48
Depression	37
Chronic Kidney Disease	42
Asthma	9
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	35
Chronic Obstructive Pulmonary Disease	37
Diabetes	49
Dementia	23
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2014 were X-rays, thoracic (chest) imaging, CT scan and abdominal imaging.

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	1006
brain imaging (neuroimaging)	864
CT scan	1743
hip imaging	167
musculoskeletal imaging	396
nuclear scan	12
pelvic imaging	643
spinal procedures	444
thoracic (chest) imaging	4157
ultrasound (sonogram)	799
vascular procedures	500
X-rays	4994

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Male	1407
Female	2049

**Ethnicity**
Non-Hispanic White	2924
Black	441
Hispanic	43
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	996
From 75 to 84	856
85 and over	543
Less than 65	1061

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2014

Hypertension	75
High Cholesterol	64
Stroke	12
Ischemic Heart Disease	49
Depression	40
Chronic Kidney Disease	42
Asthma	9
Osteoperosis	8
Atrial Fibrilation	17
Heart Failure	36
Chronic Obstructive Pulmonary Disease	36
Diabetes	49
Dementia	24
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2015 were X-rays, thoracic (chest) imaging, CT scan and abdominal imaging.

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	812
brain imaging (neuroimaging)	788
CT scan	1573
hip imaging	134
musculoskeletal imaging	320
pelvic imaging	580
spinal procedures	355
thoracic (chest) imaging	3552
ultrasound (sonogram)	614
vascular procedures	409
X-rays	4242

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Male	2642
Female	3822

**Ethnicity**
Non-Hispanic White	5446
Black	874
Hispanic	86
Asian	28
Other	0
Native American	0

**Age**
From 65 to 74	1862
From 75 to 84	1656
85 and over	994
Less than 65	1952

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2015

Hypertension	75
High Cholesterol	65
Stroke	13
Ischemic Heart Disease	49
Depression	41
Chronic Kidney Disease	44
Asthma	23
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	36
Chronic Obstructive Pulmonary Disease	35
Diabetes	46
Dementia	24
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2016 were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	853
brain imaging (neuroimaging)	857
CT scan	1724
musculoskeletal imaging	183
pelvic imaging	619
spinal procedures	338
thoracic (chest) imaging	3871
ultrasound (sonogram)	642
vascular procedures	413
women's imaging	13
X-rays	4295

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Male	1326
Female	1973

**Ethnicity**
Non-Hispanic White	2736
Black	460
Hispanic	55
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	993
From 75 to 84	821
85 and over	503
Less than 65	982

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2016

Hypertension	75
High Cholesterol	64
Stroke	12
Ischemic Heart Disease	48
Depression	38
Chronic Kidney Disease	50
Asthma	37
Osteoperosis	8
Atrial Fibrilation	17
Heart Failure	37
Chronic Obstructive Pulmonary Disease	35
Diabetes	46
Dementia	24
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2017 were X-rays, thoracic (chest) imaging, CT scan and abdominal imaging.

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	895
brain imaging (neuroimaging)	802
CT scan	1652
musculoskeletal imaging	168
pelvic imaging	604
spinal procedures	335
thoracic (chest) imaging	3941
ultrasound (sonogram)	679
vascular procedures	417
X-rays	4346

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Male	1381
Female	1852

**Ethnicity**
Non-Hispanic White	2701
Black	436
Hispanic	49
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	1051
From 75 to 84	794
85 and over	496
Less than 65	892

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2017

Hypertension	75
High Cholesterol	65
Stroke	12
Ischemic Heart Disease	51
Depression	40
Chronic Kidney Disease	54
Asthma	10
Osteoperosis	9
Atrial Fibrilation	19
Heart Failure	38
Chronic Obstructive Pulmonary Disease	36
Diabetes	46
Dementia	25
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2018 were CT scan, brain imaging (neuroimaging), abdominal imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	731
brain imaging (neuroimaging)	764
CT scan	1488
musculoskeletal imaging	132
pelvic imaging	549
spinal procedures	281
thoracic (chest) imaging	120
ultrasound (sonogram)	587
vascular procedures	410
X-rays	482

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Male	1203
Female	1711

**Ethnicity**
Non-Hispanic White	2409
Black	411
Hispanic	60
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	953
From 75 to 84	760
85 and over	454
Less than 65	747

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2018

Hypertension	75
High Cholesterol	69
Stroke	13
Ischemic Heart Disease	51
Depression	42
Chronic Kidney Disease	55
Asthma	9
Osteoperosis	9
Atrial Fibrilation	20
Heart Failure	40
Chronic Obstructive Pulmonary Disease	36
Diabetes	45
Dementia	24
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2019 were CT scan, abdominal imaging, brain imaging (neuroimaging) and pelvic imaging.

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	808
brain imaging (neuroimaging)	690
CT scan	1530
musculoskeletal imaging	146
pelvic imaging	608
spinal procedures	356
thoracic (chest) imaging	145
ultrasound (sonogram)	598
vascular procedures	364
X-rays	516

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Male	1266
Female	1644

**Ethnicity**
Non-Hispanic White	2421
Black	389
Hispanic	50
Asian	28
Other	0
Native American	0

**Age**
From 65 to 74	975
From 75 to 84	744
85 and over	496
Less than 65	695

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2019

Hypertension	75
High Cholesterol	70
Stroke	12
Ischemic Heart Disease	54
Depression	40
Chronic Kidney Disease	58
Asthma	9
Osteoperosis	10
Atrial Fibrilation	19
Heart Failure	41
Chronic Obstructive Pulmonary Disease	35
Diabetes	46
Dementia	25
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2020 were CT scan, brain imaging (neuroimaging), abdominal imaging and pelvic imaging.

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	407
brain imaging (neuroimaging)	471
CT scan	976
musculoskeletal imaging	103
pelvic imaging	350
spinal procedures	198
thoracic (chest) imaging	105
ultrasound (sonogram)	299
vascular procedures	209
X-rays	332

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Male	862
Female	1091

**Ethnicity**
Non-Hispanic White	1613
Black	275
Hispanic	32
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	636
From 75 to 84	579
85 and over	293
Less than 65	445

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2020

Hypertension	75
High Cholesterol	73
Stroke	13
Ischemic Heart Disease	57
Depression	42
Chronic Kidney Disease	64
Asthma	9
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	43
Chronic Obstructive Pulmonary Disease	36
Diabetes	50
Dementia	26
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2021 were CT scan, abdominal imaging, brain imaging (neuroimaging) and pelvic imaging.

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	459
brain imaging (neuroimaging)	456
CT scan	1049
musculoskeletal imaging	117
pelvic imaging	398
spinal procedures	224
thoracic (chest) imaging	104
ultrasound (sonogram)	301
vascular procedures	192
X-rays	312

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Male	882
Female	1121

**Ethnicity**
Non-Hispanic White	1707
Black	221
Hispanic	39
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	694
From 75 to 84	572
85 and over	334
Less than 65	403

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2021

Hypertension	75
High Cholesterol	74
Stroke	14
Ischemic Heart Disease	55
Depression	41
Chronic Kidney Disease	64
Asthma	10
Osteoperosis	11
Atrial Fibrilation	21
Heart Failure	43
Chronic Obstructive Pulmonary Disease	34
Diabetes	47
Dementia	25
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC during 2022 were CT scan, brain imaging (neuroimaging), pelvic imaging and abdominal imaging.

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

abdominal imaging	401
brain imaging (neuroimaging)	478
CT scan	1079
musculoskeletal imaging	74
pelvic imaging	402
spinal procedures	214
thoracic (chest) imaging	113
ultrasound (sonogram)	285
vascular procedures	205
X-rays	274

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Male	803
Female	1070

**Ethnicity**
Non-Hispanic White	1587
Black	208
Hispanic	44
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	621
From 75 to 84	617
85 and over	337
Less than 65	298

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2022

Hypertension	75
High Cholesterol	75
Stroke	21
Ischemic Heart Disease	46
Depression	41
Chronic Kidney Disease	46
Asthma	11
Osteoperosis	15
Atrial Fibrilation	32
Heart Failure	38
Chronic Obstructive Pulmonary Disease	35
Diabetes	48
Dementia	21
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gregory John Duellman, DO for Medicare patients.

The highest averages for the top procedures that Dr. Gregory John Duellman, DO treated as a diagnostic radiologist in Charlotte, NC were X-rays, thoracic (chest) imaging, CT scan and abdominal imaging.

abdominal imaging	749
brain imaging (neuroimaging)	715
CT scan	1469
hip imaging	157
musculoskeletal imaging	226
nuclear scan	12
pelvic imaging	547
spinal procedures	334
thoracic (chest) imaging	2346
ultrasound (sonogram)	592
vascular procedures	389
women's imaging	16
X-rays	2854

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gregory John Duellman, DO.

**Gender**
Female	1677
Male	1198

**Ethnicity**
Black / African American	383
Asian / Pacific Islander	7
Non-Hispanic White	2409
Native American / Alaskan Native	0
Hispanic	45
Other	12

**Age**
85 and over	454
75 to 84	755
Less than 65	770
65 to 74	896

Average of Total of Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Gregory John Duellman, DO treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	68
High Cholesterol	62
Stroke	12
Ischemic Heart Disease	46
Depression	36
Chronic Kidney Disease	47
Asthma	12
Osteoporosis	8
Heart Failure	35
Chronic Obstructive Pulmonary Disease	32
Diabetes	42
Atrial Fibrillation	18
Dementia	21
Cancer	12

Education & Training

Dr. Gregory John Duellman, DO graduated from Kansas City University of Medicine and Biosciences (KCUMB), College of Osteopathic Medicine. He completed residency at Grandview Medical Center. He is certified by the Board Certification: American Osteopathic Association - Diagnostic Radiology and has a state license in North Carolina.

Medical School: Kansas City University of Medicine and Biosciences (KCUMB), College of Osteopathic Medicine

Residency: Grandview Medical Center

Board Certification: Board Certification: American Osteopathic Association - Diagnostic Radiology

Licensed In: North Carolina

Affiliations & Hospitals

Dr. Gregory John Duellman, DO is associated with these hospitals and organizations:

CaroMont Health

Ratings & Reviews

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Biography

Dr. Gregory Duellman is a specialist in diagnostic radiology. In his practice, he is particularly interested in imaging procedures. He obtained his medical school training at Kansas City University of Medicine and Biosciences (KCUMB), College of Osteopathic Medicine and Des Moines University, College of Osteopathic Medicine and performed his residency at Grandview Medical Center. Dr. Duellman is affiliated with CaroMont Health.

Select Year:

Dr. Gregory John Duellman, DO

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory John Duellman, DO in 2023

By Volume:

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Gregory John Duellman, DO From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

Biography

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