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Home > CA Providers > Diagnostic Radiologists

Dr. Mark Nunzio Masotto, MD

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Specializes in: Diagnostic Radiology

Creighton University School of Medicine (1995)

431 S Batavia Street Suite 103
Orange, CA 92868

(714) 538-6731

Dr. Mark Nunzio Masotto, MD is a diagnostic radiologist in Orange, CA specializing in diagnostic radiology. He graduated from Creighton University School of Medicine in 1995 and has 31 years of experience. Dr. Mark Nunzio Masotto, MD is affiliated with Mercy Health.

Office Locations

431 S Batavia Street Suite 103
Orange, CA 92868

(714) 538-6731

(714) 771-8369

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Noteworthy Medicare Patient Procedures Performed by Dr. Mark Nunzio Masotto, MD in 2023

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

Top 10%

By Volume:

pelvic duplex ultrasound

testicular duplex ultrasound

In 2023, Dr. Mark Nunzio Masotto, MD performed more pelvic duplex ultrasound, and testicular duplex ultrasound procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

abdominal imaging

carotid duplex ultrasound

By Affordability:

abdominal CT scan

pelvic CT scan

renal transplant duplex ultrasound

renal ultrasound

X-rays

In 2012, among providers in related specialties within California, Dr. Mark Nunzio Masotto, MD performed more abdominal imaging, carotid duplex ultrasound, spine imaging, ultrasound (sonogram), 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, renal transplant duplex ultrasound, renal ultrasound, 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. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2012 were thoracic (chest) imaging, X-rays, CT scan and abdominal imaging.

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	659
brain imaging (neuroimaging)	346
CT scan	850
eye procedures	11
gastrointestinal procedures	15
hip imaging	133
MRI (magnetic resonance imaging)	547
musculoskeletal imaging	227
neck imaging	51
pelvic imaging	405
spinal procedures	359
thoracic (chest) imaging	982
ultrasound (sonogram)	508
vascular procedures	116
women's imaging	41
X-rays	918

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2013 were X-rays, thoracic (chest) imaging, CT scan and abdominal imaging.

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	775
aspiration	24
brain imaging (neuroimaging)	317
CT scan	809
hip imaging	157
injections	24
MRI (magnetic resonance imaging)	603
musculoskeletal imaging	327
neck imaging	61
pelvic imaging	497
spinal procedures	385
thoracic (chest) imaging	1051
ultrasound (sonogram)	704
vascular procedures	130
women's imaging	59
X-rays	1114

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	1263
Female	1631

**Ethnicity**
Non-Hispanic White	2166
Black	0
Hispanic	404
Asian	237
Other	48
Native American	0

**Age**
From 65 to 74	1135
From 75 to 84	1054
85 and over	490
Less than 65	215

Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD in 2013

Hypertension	73
High Cholesterol	65
Stroke	7
Ischemic Heart Disease	41
Depression	19
Chronic Kidney Disease	29
Asthma	7
Osteoperosis	13
Atrial Fibrilation	16
Heart Failure	22
Chronic Obstructive Pulmonary Disease	15
Diabetes	33
Dementia	12
Cancer	16

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2014 were X-rays, thoracic (chest) imaging, CT scan and abdominal imaging.

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	807
aspiration	15
brain imaging (neuroimaging)	314
CT scan	842
gastrointestinal procedures	15
hip imaging	152
injections	15
MRI (magnetic resonance imaging)	579
musculoskeletal imaging	293
neck imaging	42
pelvic imaging	618
spinal procedures	428
thoracic (chest) imaging	1085
ultrasound (sonogram)	670
vascular procedures	194
women's imaging	57
X-rays	1146

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	1149
Female	1673

**Ethnicity**
Non-Hispanic White	2089
Black	0
Hispanic	415
Asian	201
Other	57
Native American	0

**Age**
From 65 to 74	1077
From 75 to 84	1042
85 and over	465
Less than 65	238

Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD in 2014

Hypertension	74
High Cholesterol	64
Stroke	8
Ischemic Heart Disease	42
Depression	21
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	14
Atrial Fibrilation	17
Heart Failure	23
Chronic Obstructive Pulmonary Disease	17
Diabetes	34
Dementia	12
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2015 were X-rays, thoracic (chest) imaging, abdominal imaging and CT scan.

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	780
aspiration	15
brain imaging (neuroimaging)	298
CT scan	755
gastrointestinal procedures	15
hip imaging	129
injections	15
MRI (magnetic resonance imaging)	516
musculoskeletal imaging	218
neck imaging	46
pelvic imaging	591
spinal procedures	406
thoracic (chest) imaging	1150
ultrasound (sonogram)	726
vascular procedures	251
women's imaging	53
X-rays	1163

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	2308
Female	3152

**Ethnicity**
Non-Hispanic White	4062
Black	0
Hispanic	818
Asian	390
Other	94
Native American	0

**Age**
From 65 to 74	2124
From 75 to 84	1970
85 and over	900
Less than 65	466

Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD in 2015

Hypertension	74
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	43
Depression	23
Chronic Kidney Disease	34
Asthma	14
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	25
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	13
Cancer	16

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2016 were thoracic (chest) imaging, X-rays, abdominal imaging and CT scan.

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	812
aspiration	21
brain imaging (neuroimaging)	319
CT scan	785
eye procedures	14
gastrointestinal procedures	11
hip imaging	53
injections	21
MRI (magnetic resonance imaging)	436
musculoskeletal imaging	182
neck imaging	66
pelvic imaging	596
spinal procedures	333
thoracic (chest) imaging	1128
ultrasound (sonogram)	757
vascular procedures	278
women's imaging	48
X-rays	1106

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	1158
Female	1561

**Ethnicity**
Non-Hispanic White	2064
Black	0
Hispanic	349
Asian	198
Other	67
Native American	0

**Age**
From 65 to 74	1042
From 75 to 84	960
85 and over	502
Less than 65	215

Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD in 2016

Hypertension	75
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	42
Depression	24
Chronic Kidney Disease	39
Asthma	19
Osteoperosis	14
Atrial Fibrilation	17
Heart Failure	25
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	13
Cancer	17

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2017 were thoracic (chest) imaging, X-rays, CT scan and abdominal imaging.

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	742
aspiration	13
brain imaging (neuroimaging)	383
CT scan	898
hip imaging	46
injections	13
MRI (magnetic resonance imaging)	369
musculoskeletal imaging	159
neck imaging	62
pelvic imaging	437
spinal procedures	341
thoracic (chest) imaging	1612
ultrasound (sonogram)	635
vascular procedures	134
women's imaging	37
X-rays	1570

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	1306
Female	1775

**Ethnicity**
Non-Hispanic White	2219
Black	0
Hispanic	464
Asian	249
Other	88
Native American	0

**Age**
From 65 to 74	1128
From 75 to 84	1052
85 and over	624
Less than 65	277

Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD in 2017

Hypertension	75
High Cholesterol	60
Stroke	8
Ischemic Heart Disease	44
Depression	25
Chronic Kidney Disease	43
Asthma	10
Osteoperosis	14
Atrial Fibrilation	18
Heart Failure	26
Chronic Obstructive Pulmonary Disease	20
Diabetes	35
Dementia	14
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2018 were CT scan, abdominal imaging, ultrasound (sonogram) and pelvic imaging.

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	612
brain imaging (neuroimaging)	373
CT scan	802
hip imaging	39
MRI (magnetic resonance imaging)	290
musculoskeletal imaging	131
neck imaging	38
pelvic imaging	378
spinal procedures	307
thoracic (chest) imaging	186
ultrasound (sonogram)	528
vascular procedures	92
women's imaging	36
X-rays	198

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	1218
Female	1581

**Ethnicity**
Non-Hispanic White	1999
Black	0
Hispanic	451
Asian	232
Other	72
Native American	0

**Age**
From 65 to 74	1026
From 75 to 84	939
85 and over	563
Less than 65	271

Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD in 2018

Hypertension	75
High Cholesterol	70
Stroke	9
Ischemic Heart Disease	46
Depression	28
Chronic Kidney Disease	46
Asthma	11
Osteoperosis	15
Atrial Fibrilation	19
Heart Failure	30
Chronic Obstructive Pulmonary Disease	22
Diabetes	35
Dementia	16
Cancer	17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2019 were CT scan, abdominal imaging, pelvic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	522
brain imaging (neuroimaging)	306
CT scan	709
hip imaging	25
MRI (magnetic resonance imaging)	224
musculoskeletal imaging	106
neck imaging	18
pelvic imaging	345
spinal procedures	219
thoracic (chest) imaging	172
ultrasound (sonogram)	334
vascular procedures	54
women's imaging	17
X-rays	163

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	1107
Female	1366

**Ethnicity**
Non-Hispanic White	1706
Black	0
Hispanic	451
Asian	185
Other	80
Native American	0

**Age**
From 65 to 74	917
From 75 to 84	836
85 and over	495
Less than 65	225

Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD in 2019

Hypertension	75
High Cholesterol	69
Stroke	9
Ischemic Heart Disease	47
Depression	30
Chronic Kidney Disease	50
Asthma	10
Osteoperosis	15
Atrial Fibrilation	19
Heart Failure	33
Chronic Obstructive Pulmonary Disease	20
Diabetes	37
Dementia	18
Cancer	19

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2020 were CT scan, abdominal imaging, brain imaging (neuroimaging) and pelvic imaging.

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	414
brain imaging (neuroimaging)	278
CT scan	609
hip imaging	12
MRI (magnetic resonance imaging)	206
musculoskeletal imaging	65
neck imaging	15
pelvic imaging	277
spinal procedures	158
thoracic (chest) imaging	156
ultrasound (sonogram)	253
vascular procedures	33
women's imaging	17
X-rays	103

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	917
Female	1098

**Ethnicity**
Non-Hispanic White	1342
Black	0
Hispanic	394
Asian	166
Other	62
Native American	0

**Age**
From 65 to 74	711
From 75 to 84	712
85 and over	375
Less than 65	217

Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD in 2020

Hypertension	75
High Cholesterol	70
Stroke	10
Ischemic Heart Disease	50
Depression	29
Chronic Kidney Disease	53
Asthma	11
Osteoperosis	16
Atrial Fibrilation	18
Heart Failure	34
Chronic Obstructive Pulmonary Disease	21
Diabetes	37
Dementia	19
Cancer	19

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2021 were CT scan, abdominal imaging, pelvic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	702
brain imaging (neuroimaging)	356
CT scan	815
hip imaging	11
MRI (magnetic resonance imaging)	168
musculoskeletal imaging	68
neck imaging	17
pelvic imaging	530
spinal procedures	224
thoracic (chest) imaging	147
ultrasound (sonogram)	440
vascular procedures	193
women's imaging	12
X-rays	158

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	1118
Female	1366

**Ethnicity**
Non-Hispanic White	1789
Black	0
Hispanic	382
Asian	196
Other	72
Native American	0

**Age**
From 65 to 74	902
From 75 to 84	899
85 and over	468
Less than 65	215

Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD in 2021

Hypertension	75
High Cholesterol	73
Stroke	12
Ischemic Heart Disease	48
Depression	27
Chronic Kidney Disease	51
Asthma	10
Osteoperosis	13
Atrial Fibrilation	19
Heart Failure	32
Chronic Obstructive Pulmonary Disease	17
Diabetes	36
Dementia	19
Cancer	19

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA during 2022 were CT scan, abdominal imaging, pelvic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

abdominal imaging	627
brain imaging (neuroimaging)	370
CT scan	765
hip imaging	11
MRI (magnetic resonance imaging)	249
musculoskeletal imaging	97
neck imaging	34
pelvic imaging	494
spinal procedures	244
thoracic (chest) imaging	158
ultrasound (sonogram)	460
vascular procedures	180
women's imaging	22
X-rays	176

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	1158
Female	1461

**Ethnicity**
Non-Hispanic White	1818
Black	0
Hispanic	410
Asian	253
Other	89
Native American	0

**Age**
From 65 to 74	934
From 75 to 84	974
85 and over	478
Less than 65	233

Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	17
Ischemic Heart Disease	37
Depression	25
Chronic Kidney Disease	35
Asthma	13
Osteoperosis	20
Atrial Fibrilation	27
Heart Failure	27
Chronic Obstructive Pulmonary Disease	20
Diabetes	37
Dementia	13
Cancer	24

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mark Nunzio Masotto, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark Nunzio Masotto, MD treated as a diagnostic radiologist in Orange, CA were CT scan, thoracic (chest) imaging, X-rays and abdominal imaging.

abdominal imaging	677
aspiration	17
brain imaging (neuroimaging)	332
CT scan	785
eye procedures	12
gastrointestinal procedures	14
hip imaging	69
injections	17
MRI (magnetic resonance imaging)	380
musculoskeletal imaging	170
neck imaging	40
pelvic imaging	469
spinal procedures	309
thoracic (chest) imaging	711
ultrasound (sonogram)	546
vascular procedures	150
women's imaging	36
X-rays	710

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mark Nunzio Masotto, MD.

**Gender**
Male	1154
Female	1514

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	209
Non-Hispanic White	1932
Native American / Alaskan Native	0
Hispanic	412
Other	66

**Age**
75 to 84	948
85 and over	487
Less than 65	233
65 to 74	999

Average of Total of Conditions of Medicare patients treated by Dr. Mark Nunzio Masotto, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Mark Nunzio Masotto, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	67
High Cholesterol	61
Stroke	8
Ischemic Heart Disease	40
Depression	22
Chronic Kidney Disease	37
Asthma	10
Osteoporosis	13
Heart Failure	25
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Atrial Fibrillation	16
Dementia	13
Cancer	16

Education & Training

Dr. Mark Nunzio Masotto, MD graduated from Creighton University School of Medicine in 1995. He completed residency at Loma Linda University Medical Center. He has a state license in California.

Medical School: Creighton University School of Medicine (1995)

Residency: Loma Linda University Medical Center (2000)

Licensed In: California

Affiliations & Hospitals

Dr. Mark Nunzio Masotto, MD is associated with these hospitals and organizations:

Mercy Health

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General Payments

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

**Payments by Company**
Canon Medical Systems USA, Inc.	$13,518 CT SCANNER $7,500	CT SCANNER EPSILON $2,400	Vantage Orian $18	$3,600
Siemens Medical Solutions USA, Inc.	$690 MAGNETOM Skyra $338	CR - incl. Computed Tomography and Radiation Oncology $163	MR - MRI $105	USD Ultrasound Systems $45	SOMATOM Edge $37
GE Healthcare	$520 $520

**Types of Payments**
Consulting Fee	$13,500
Food and Beverage	$1,228

Biography

Dr. Mark Masotto is a diagnostic radiology specialist in Orange, CA. Dr. Masotto's education and training includes medical school at Creighton University School of Medicine and residency at Loma Linda University Medical Center. He is professionally affiliated with Mercy Health.