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Home > TX Providers > Diagnostic Radiologists

Dr. James M. Callas, MD

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Specializes in: Diagnostic Radiology

University of Texas Medical Branch School of Medicine

1905 Sw H K Dodgen Loop
Temple, TX 76502

(254) 298-2682

Dr. James M. Callas, MD is a diagnostic radiologist in Austin, TX specializing in diagnostic radiology. He graduated from University of Texas Medical Branch School of Medicine. Dr. James M. Callas, MD is affiliated with Ascension, Ascension Seton Williamson and SETON FAMILY OF DOCTORS.

Office Locations

1004 W 32nd Street Suite 120 Ascension Texas Imaging
Austin, TX 78705

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1101 Wolf Lake Drive Suite 100
Georgetown, TX 78628

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11111 Research Boulevard Suite 210
Austin, TX 78759

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1905 Sw H K Dodgen Loop
Temple, TX 76502

(254) 298-2682

(254) 778-7197

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3800 S W S Young Drive Suite 201
Killeen, TX 76542

(254) 245-9175

(254) 213-7771

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5103 Kyle Center Drive Ascension Texas Imaging
Kyle, TX 78640

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Noteworthy Medicare Patient Procedures Performed by Dr. James M. Callas, MD in 2023

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

Top 25%

By Volume:

X-rays

In 2012, Dr. James M. Callas, MD performed more X-rays procedures for Medicare patients than 75% of providers in related specialties within Texas.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2012 were X-rays, women's imaging, breast procedures and thoracic (chest) imaging.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

abdominal imaging	735
brain imaging (neuroimaging)	179
breast procedures	1309
CT scan	688
diagnostic imaging	217
eye procedures	13
hip imaging	130
MRI (magnetic resonance imaging)	284
musculoskeletal imaging	394
neck imaging	57
pelvic imaging	393
preventive care	899
spinal procedures	367
thoracic (chest) imaging	1106
ultrasound (sonogram)	818
vascular procedures	254
women's imaging	1309
X-rays	2694

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2013 were X-rays, women's imaging, breast procedures and thoracic (chest) imaging.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

abdominal imaging	183
brain imaging (neuroimaging)	149
breast procedures	959
CT scan	310
diagnostic imaging	212
eye procedures	13
hip imaging	96
MRI (magnetic resonance imaging)	275
musculoskeletal imaging	297
neck imaging	20
pelvic imaging	91
preventive care	571
spinal procedures	319
thoracic (chest) imaging	623
ultrasound (sonogram)	391
vascular procedures	134
women's imaging	959
X-rays	1755

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	609
Female	1444

**Ethnicity**
Non-Hispanic White	1529
Black	282
Hispanic	169
Asian	42
Other	0
Native American	0

**Age**
From 65 to 74	1029
From 75 to 84	510
85 and over	173
Less than 65	341

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2013

Hypertension	74
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	38
Depression	26
Chronic Kidney Disease	21
Asthma	11
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	24
Chronic Obstructive Pulmonary Disease	18
Diabetes	35
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2014 were X-rays, women's imaging, breast procedures and thoracic (chest) imaging.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

abdominal imaging	227
brain imaging (neuroimaging)	204
breast procedures	1000
CT scan	384
diagnostic imaging	250
hip imaging	96
MRI (magnetic resonance imaging)	259
musculoskeletal imaging	289
neck imaging	18
pelvic imaging	143
preventive care	588
spinal procedures	275
thoracic (chest) imaging	878
ultrasound (sonogram)	350
vascular procedures	80
women's imaging	1000
X-rays	2001

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	577
Female	1624

**Ethnicity**
Non-Hispanic White	1521
Black	370
Hispanic	231
Asian	42
Other	0
Native American	0

**Age**
From 65 to 74	1025
From 75 to 84	538
85 and over	185
Less than 65	453

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2014

Hypertension	75
High Cholesterol	69
Stroke	7
Ischemic Heart Disease	39
Depression	29
Chronic Kidney Disease	25
Asthma	12
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	30
Chronic Obstructive Pulmonary Disease	21
Diabetes	39
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2015 were X-rays, thoracic (chest) imaging, women's imaging and breast procedures.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

abdominal imaging	311
brain imaging (neuroimaging)	312
breast procedures	1165
CT scan	599
diagnostic imaging	208
hip imaging	80
MRI (magnetic resonance imaging)	178
musculoskeletal imaging	496
pelvic imaging	273
preventive care	703
spinal procedures	289
thoracic (chest) imaging	1246
ultrasound (sonogram)	411
vascular procedures	74
vertebral fracture assessment (VFA)	248
women's imaging	1165
X-rays	2774

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	1584
Female	3748

**Ethnicity**
Non-Hispanic White	3724
Black	878
Hispanic	522
Asian	132
Other	0
Native American	0

**Age**
From 65 to 74	2496
From 75 to 84	1290
85 and over	398
Less than 65	1148

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2015

Hypertension	75
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	36
Depression	28
Chronic Kidney Disease	26
Asthma	18
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	27
Chronic Obstructive Pulmonary Disease	19
Diabetes	38
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2016 were X-rays, thoracic (chest) imaging, women's imaging and breast procedures.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

abdominal imaging	423
brain imaging (neuroimaging)	404
breast procedures	1221
CT scan	807
diagnostic imaging	236
gastrointestinal procedures	13
hip imaging	19
MRI (magnetic resonance imaging)	240
musculoskeletal imaging	440
nuclear scan	15
pelvic imaging	293
preventive care	681
spinal procedures	391
thoracic (chest) imaging	1455
ultrasound (sonogram)	556
vascular procedures	105
vertebral fracture assessment (VFA)	212
women's imaging	1221
X-rays	2892

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	985
Female	2097

**Ethnicity**
Non-Hispanic White	2079
Black	562
Hispanic	314
Asian	60
Other	0
Native American	0

**Age**
From 65 to 74	1412
From 75 to 84	714
85 and over	246
Less than 65	710

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2016

Hypertension	74
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	36
Depression	29
Chronic Kidney Disease	33
Asthma	25
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	24
Chronic Obstructive Pulmonary Disease	19
Diabetes	38
Dementia	14
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2017 were X-rays, women's imaging, breast procedures and preventive care.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

abdominal imaging	25
brain imaging (neuroimaging)	24
breast procedures	1079
CT scan	24
diagnostic imaging	182
MRI (magnetic resonance imaging)	31
musculoskeletal imaging	259
pelvic imaging	12
preventive care	657
spinal procedures	62
thoracic (chest) imaging	213
ultrasound (sonogram)	265
vertebral fracture assessment (VFA)	122
women's imaging	1079
X-rays	1354

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	335
Female	1154

**Ethnicity**
Non-Hispanic White	1187
Black	152
Hispanic	104
Asian	23
Other	23
Native American	0

**Age**
From 65 to 74	796
From 75 to 84	429
85 and over	108
Less than 65	156

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2017

Hypertension	73
High Cholesterol	65
Stroke	3
Ischemic Heart Disease	28
Depression	26
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	9
Atrial Fibrilation	7
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	33
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2018 were X-rays, breast procedures, women's imaging and preventive care.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

abdominal imaging	41
brain imaging (neuroimaging)	52
breast procedures	1111
CT scan	63
diagnostic imaging	219
diagnostic procedures	11
hip imaging	11
image guided procedures	11
minimally invasive procedures	11
minor procedures	11
MRI (magnetic resonance imaging)	129
musculoskeletal imaging	624
pelvic imaging	11
preventive care	653
spinal procedures	410
ultrasound (sonogram)	258
vertebral fracture assessment (VFA)	46
women's imaging	1100
X-rays	1777

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	665
Female	1667

**Ethnicity**
Non-Hispanic White	1879
Black	207
Hispanic	167
Asian	38
Other	0
Native American	0

**Age**
From 65 to 74	1202
From 75 to 84	669
85 and over	205
Less than 65	256

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2018

Hypertension	72
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	30
Depression	25
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2019 were X-rays, women's imaging, breast procedures and preventive care.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

abdominal imaging	127
breast procedures	800
diagnostic imaging	107
hip imaging	16
MRI (magnetic resonance imaging)	97
musculoskeletal imaging	480
neck imaging	43
preventive care	571
spinal procedures	382
thoracic (chest) imaging	13
ultrasound (sonogram)	370
vascular procedures	78
vertebral fracture assessment (VFA)	51
women's imaging	800
X-rays	1456

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	519
Female	1267

**Ethnicity**
Non-Hispanic White	1445
Black	137
Hispanic	140
Asian	0
Other	33
Native American	0

**Age**
From 65 to 74	986
From 75 to 84	522
85 and over	115
Less than 65	163

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2019

Hypertension	72
High Cholesterol	69
Stroke	4
Ischemic Heart Disease	26
Depression	24
Chronic Kidney Disease	25
Asthma	10
Osteoperosis	11
Atrial Fibrilation	8
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	30
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2020 were X-rays, breast procedures, women's imaging and preventive care.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

breast procedures	737
diagnostic imaging	124
musculoskeletal imaging	243
preventive care	475
spinal procedures	75
ultrasound (sonogram)	152
vascular procedures	14
women's imaging	737
X-rays	917

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	226
Female	816

**Ethnicity**
Non-Hispanic White	874
Black	62
Hispanic	65
Asian	18
Other	23
Native American	0

**Age**
From 65 to 74	594
From 75 to 84	317
85 and over	62
Less than 65	69

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2020

Hypertension	69
High Cholesterol	67
Stroke	3
Ischemic Heart Disease	23
Depression	22
Chronic Kidney Disease	22
Asthma	9
Osteoperosis	10
Atrial Fibrilation	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	29
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2021 were X-rays, breast procedures, women's imaging and musculoskeletal imaging.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

breast procedures	336
cardiac procedures	26
diagnostic imaging	76
musculoskeletal imaging	298
preventive care	158
spinal procedures	31
ultrasound (sonogram)	128
women's imaging	336
X-rays	563

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	163
Female	559

**Ethnicity**
Non-Hispanic White	590
Black	50
Hispanic	46
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	424
From 75 to 84	211
85 and over	38
Less than 65	49

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2021

Hypertension	71
High Cholesterol	70
Stroke	4
Ischemic Heart Disease	26
Depression	24
Chronic Kidney Disease	24
Asthma	9
Osteoperosis	13
Atrial Fibrilation	7
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	29
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX during 2022 were X-rays, musculoskeletal imaging, breast procedures and women's imaging.

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

breast procedures	204
cardiac procedures	72
diagnostic imaging	37
musculoskeletal imaging	262
preventive care	111
spinal procedures	12
ultrasound (sonogram)	128
women's imaging	204
X-rays	422

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	107
Female	450

**Ethnicity**
Non-Hispanic White	467
Black	29
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	346
From 75 to 84	164
85 and over	23
Less than 65	24

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2022

Hypertension	72
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	20
Depression	22
Chronic Kidney Disease	13
Asthma	10
Osteoperosis	18
Atrial Fibrilation	12
Heart Failure	8
Chronic Obstructive Pulmonary Disease	9
Diabetes	27
Dementia	3
Cancer	11

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. James M. Callas, MD for Medicare patients.

The highest averages for the top procedures that Dr. James M. Callas, MD treated as a diagnostic radiologist in Austin, TX were X-rays, breast procedures, women's imaging and thoracic (chest) imaging.

abdominal imaging	259
brain imaging (neuroimaging)	189
breast procedures	901
cardiac procedures	49
CT scan	410
diagnostic imaging	169
diagnostic procedures	11
eye procedures	13
gastrointestinal procedures	13
hip imaging	64
image guided procedures	11
minimally invasive procedures	11
minor procedures	11
MRI (magnetic resonance imaging)	186
musculoskeletal imaging	371
neck imaging	34
nuclear scan	15
pelvic imaging	173
preventive care	551
spinal procedures	237
thoracic (chest) imaging	790
ultrasound (sonogram)	347
vascular procedures	105
vertebral fracture assessment (VFA)	135
women's imaging	900
X-rays	1691

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. James M. Callas, MD.

**Gender**
Male	524
Female	1347

**Ethnicity**
Black / African American	248
Asian / Pacific Islander	32
Non-Hispanic White	1390
Native American / Alaskan Native	0
Hispanic	163
Other	9

**Age**
75 to 84	487
85 and over	141
Less than 65	306
65 to 74	937

Average of Total of Conditions of Medicare patients treated by Dr. James M. Callas, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. James M. Callas, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	66
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	27
Depression	23
Chronic Kidney Disease	21
Asthma	11
Osteoporosis	9
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Atrial Fibrillation	7
Dementia	8
Cancer	7

Education & Training

Dr. James M. Callas, MD graduated from University of Texas Medical Branch School of Medicine. He completed residency at UTMB / Galveston. He is certified by the The American Board of Radiology - Diagnostic Radiology and has a state license in Texas.

Medical School: University of Texas Medical Branch School of Medicine

Residency: UTMB / Galveston

Board Certification: The American Board of Radiology - Diagnostic Radiology

Licensed In: Texas

Affiliations & Hospitals

Dr. James M. Callas, MD is associated with these hospitals and organizations:

Ascension

Ascension Seton Williamson

SETON FAMILY OF DOCTORS

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. James M. Callas, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Stryker Corporation	$651 Omega $203	TRIATHLON $153	SonicAnchor $103	AUGMENT INJECTABLE $102	ACTISHIELD $45	Other $44
Halyard Health, Inc.	$148 PAIN MANAGEMENT $148
Siemens Medical Solutions USA, Inc.	$139 ACUSON Redwood Diagnostic Ultrasound System $73	Mammomat Revelation $65
Relievant Medsystems, Inc.	$56 Intracept $56
Medtronic Sofamor Danek USA, Inc.	$38 Thoracolumbar - TL Therapies $38

**Types of Payments**
Food and Beverage	$1,031

Biography

Dr. James Callas is a specialist in diagnostic radiology. Dr. Callas studied medicine at the University of Texas Medical Branch School of Medicine. He is professionally affiliated with Ascension.

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Dr. James M. Callas, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. James M. Callas, MD in 2023

By Volume:

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. James M. Callas, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James M. Callas, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. James M. Callas, MD 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. James M. Callas, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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