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Home > WI Providers > Diagnostic Radiologists

Dr. Robert D. Lyon, MD

(No ratings)

Specializes in: Interventional Radiology/Diagnostic Radiology (IR/DR) and Diagnostic Radiology

10945 N Port Washington Road Suite 201
Mequon, WI 53092

(262) 292-3151

Dr. Robert D. Lyon, MD is a radiologist in Mequon, WI specializing in interventional radiology/diagnostic radiology (ir/dr) and diagnostic radiology.

Office Locations

10945 N Port Washington Road Suite 201
Mequon, WI 53092

(262) 292-3151

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Noteworthy Medicare Patient Procedures Performed by Dr. Robert D. Lyon, MD in 2023

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

Top 5%

By Volume:

chest CT scan

By Affordability:

bone density test

central DEXA

dual-energy X-ray absorptiometry

In 2023, among providers in related specialties within Wisconsin, Dr. Robert D. Lyon, MD performed more chest CT scan procedures for Medicare patients than 95% of them and he also had a list price for bone density test, central DEXA, and dual-energy X-ray absorptiometry (DEXA) that was lower than the list prices billed to Medicare by 95% 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.

Top 10%

By Affordability:

spine X-ray

In 2023, Dr. Robert D. Lyon, MD had a list price for spine X-ray that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Wisconsin. 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.

Top 25%

By Volume:

abdominal imaging

CT scan

pelvic CT scan

By Affordability:

abdominal CT scan

cervical spine CT scan

limited abdominal ultrasound

lower extremity venous ultrasound

lower extremity venous duplex

maxillofacial CT scan

neck ultrasound

retroperitoneal ultrasound

rib X-ray

soft tissue ultrasound

venous duplex ultrasound

venous ultrasound

X-rays

In 2012, among providers in related specialties within Wisconsin, Dr. Robert D. Lyon, MD performed more abdominal imaging, CT scan, and pelvic CT scan procedures for Medicare patients than 75% of them and he also had a list price for abdominal CT scan, cervical (neck) spine CT scan, CT scan, duplex ultrasound, head/brain CT scan, joint X-ray, knee X-ray, limited abdominal ultrasound, lower extremity (leg) venous ultrasound, lower extremity venous duplex, maxillofacial (jaw/face) CT scan, neck ultrasound, retroperitoneal ultrasound, rib X-ray, soft tissue ultrasound, spine CT scan, spine imaging, vascular studies, vascular ultrasound, venous duplex ultrasound, venous 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. Robert D. Lyon, MD treated as a radiologist in Mequon, WI during 2012 were vascular procedures, thoracic (chest) imaging, ultrasound (sonogram) and X-rays.

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

abdominal imaging	45
aspiration	11
brain imaging (neuroimaging)	61
catheterization	43
CT scan	148
musculoskeletal imaging	17
neck imaging	12
pelvic imaging	45
pleural drainage	11
thoracic (chest) imaging	235
ultrasound (sonogram)	219
vascular procedures	287
X-rays	210

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Robert D. Lyon, MD treated as a radiologist in Mequon, WI during 2013 were X-rays, thoracic (chest) imaging, vascular procedures and CT scan.

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

abdominal imaging	130
angioplasty	20
aspiration	32
brain imaging (neuroimaging)	100
catheterization	33
CT scan	238
diagnostic procedures	14
dialysis access procedures	16
image guided procedures	14
minimally invasive procedures	27
minor procedures	14
musculoskeletal imaging	70
pelvic imaging	80
pleural drainage	18
spinal procedures	16
thoracic (chest) imaging	436
ultrasound (sonogram)	218
vascular procedures	271
X-rays	476

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert D. Lyon, MD.

**Gender**
Male	455
Female	722

**Ethnicity**
Non-Hispanic White	762
Black	346
Hispanic	43
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	409
From 75 to 84	338
85 and over	216
Less than 65	214

Conditions of Medicare patients treated by Dr. Robert D. Lyon, MD in 2013

Hypertension	75
High Cholesterol	62
Stroke	10
Ischemic Heart Disease	44
Depression	29
Chronic Kidney Disease	40
Asthma	13
Osteoperosis	12
Atrial Fibrilation	17
Heart Failure	32
Chronic Obstructive Pulmonary Disease	22
Diabetes	39
Dementia	17
Cancer	17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Robert D. Lyon, MD treated as a radiologist in Mequon, WI during 2014 were thoracic (chest) imaging, X-rays, CT scan and vascular procedures.

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

abdominal imaging	91
aspiration	32
brain imaging (neuroimaging)	101
catheterization	29
CT scan	285
diagnostic procedures	16
hospital care	15
image guided procedures	16
inpatient care	15
minimally invasive procedures	16
minor procedures	16
musculoskeletal imaging	50
neck imaging	15
pelvic imaging	79
pleural drainage	16
spinal procedures	11
thoracic (chest) imaging	353
ultrasound (sonogram)	224
vascular procedures	274
X-rays	309

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert D. Lyon, MD.

**Gender**
Male	416
Female	686

**Ethnicity**
Non-Hispanic White	698
Black	350
Hispanic	37
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	380
From 75 to 84	286
85 and over	217
Less than 65	219

Conditions of Medicare patients treated by Dr. Robert D. Lyon, MD in 2014

Hypertension	75
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	46
Depression	29
Chronic Kidney Disease	40
Asthma	14
Osteoperosis	12
Atrial Fibrilation	20
Heart Failure	30
Chronic Obstructive Pulmonary Disease	22
Diabetes	39
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Robert D. Lyon, MD treated as a radiologist in Mequon, WI during 2015 were thoracic (chest) imaging, X-rays, CT scan and ultrasound (sonogram).

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

abdominal imaging	221
angioplasty	25
aspiration	27
brain imaging (neuroimaging)	111
catheterization	28
CT scan	457
diagnostic procedures	13
dialysis access procedures	25
hip imaging	15
image guided procedures	13
minimally invasive procedures	13
minor procedures	13
musculoskeletal imaging	63
neck imaging	30
pelvic imaging	155
pleural drainage	14
spinal procedures	48
thoracic (chest) imaging	692
ultrasound (sonogram)	231
vascular procedures	231
X-rays	652

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert D. Lyon, MD.

**Gender**
Male	1162
Female	1670

**Ethnicity**
Non-Hispanic White	1930
Black	726
Hispanic	106
Asian	0
Other	40
Native American	0

**Age**
From 65 to 74	1002
From 75 to 84	690
85 and over	606
Less than 65	534

Conditions of Medicare patients treated by Dr. Robert D. Lyon, MD in 2015

Hypertension	75
High Cholesterol	62
Stroke	11
Ischemic Heart Disease	46
Depression	33
Chronic Kidney Disease	43
Asthma	22
Osteoperosis	12
Atrial Fibrilation	19
Heart Failure	30
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Dementia	17
Cancer	16

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Robert D. Lyon, MD treated as a radiologist in Mequon, WI during 2016 were X-rays, thoracic (chest) imaging, CT scan and vascular procedures.

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

abdominal imaging	119
aspiration	26
brain imaging (neuroimaging)	92
catheterization	14
CT scan	295
diagnostic procedures	13
dialysis access procedures	15
hospital care	18
image guided procedures	13
inpatient care	18
minimally invasive procedures	13
minor procedures	13
musculoskeletal imaging	97
neck imaging	11
pelvic imaging	82
pleural drainage	13
spinal procedures	14
thoracic (chest) imaging	549
ultrasound (sonogram)	143
vascular procedures	151
X-rays	566

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert D. Lyon, MD.

**Gender**
Male	481
Female	688

**Ethnicity**
Non-Hispanic White	801
Black	283
Hispanic	31
Asian	0
Other	29
Native American	0

**Age**
From 65 to 74	451
From 75 to 84	282
85 and over	232
Less than 65	204

Conditions of Medicare patients treated by Dr. Robert D. Lyon, MD in 2016

Hypertension	75
High Cholesterol	60
Stroke	10
Ischemic Heart Disease	49
Depression	31
Chronic Kidney Disease	46
Asthma	30
Osteoperosis	13
Atrial Fibrilation	19
Heart Failure	32
Chronic Obstructive Pulmonary Disease	25
Diabetes	36
Dementia	20
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Robert D. Lyon, MD treated as a radiologist in Mequon, WI during 2017 were thoracic (chest) imaging, X-rays, CT scan and ultrasound (sonogram).

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

abdominal imaging	127
aspiration	32
brain imaging (neuroimaging)	72
CT scan	273
musculoskeletal imaging	83
pelvic imaging	88
pleural drainage	12
thoracic (chest) imaging	546
ultrasound (sonogram)	177
vascular procedures	162
X-rays	527

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert D. Lyon, MD.

**Gender**
Male	526
Female	687

**Ethnicity**
Non-Hispanic White	916
Black	217
Hispanic	28
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	436
From 75 to 84	336
85 and over	232
Less than 65	209

Conditions of Medicare patients treated by Dr. Robert D. Lyon, MD in 2017

Hypertension	75
High Cholesterol	58
Stroke	10
Ischemic Heart Disease	54
Depression	32
Chronic Kidney Disease	48
Asthma	13
Osteoperosis	14
Atrial Fibrilation	20
Heart Failure	37
Chronic Obstructive Pulmonary Disease	28
Diabetes	37
Dementia	20
Cancer	19

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Robert D. Lyon, MD treated as a radiologist in Mequon, WI during 2019 were CT scan, pelvic imaging, abdominal imaging and brain imaging (neuroimaging).

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

abdominal imaging	72
brain imaging (neuroimaging)	71
CT scan	219
musculoskeletal imaging	32
pelvic imaging	72
spinal procedures	14
thoracic (chest) imaging	62
X-rays	32

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert D. Lyon, MD.

**Gender**
Male	276
Female	404

**Ethnicity**
Non-Hispanic White	470
Black	143
Hispanic	27
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	231
From 75 to 84	169
85 and over	153
Less than 65	127

Conditions of Medicare patients treated by Dr. Robert D. Lyon, MD in 2019

Hypertension	75
High Cholesterol	71
Stroke	10
Ischemic Heart Disease	53
Depression	38
Chronic Kidney Disease	49
Asthma	14
Osteoperosis	13
Atrial Fibrilation	21
Heart Failure	37
Chronic Obstructive Pulmonary Disease	26
Diabetes	37
Dementia	25
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Robert D. Lyon, MD treated as a radiologist in Mequon, WI during 2020 were CT scan, abdominal imaging, thoracic (chest) imaging and pelvic imaging.

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

abdominal imaging	299
brain imaging (neuroimaging)	160
CT scan	737
musculoskeletal imaging	105
neck imaging	13
pelvic imaging	259
preventive care	31
spinal procedures	80
thoracic (chest) imaging	277
ultrasound (sonogram)	132
vascular procedures	81
X-rays	180

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert D. Lyon, MD.

**Gender**
Male	847
Female	1163

**Ethnicity**
Non-Hispanic White	1464
Black	378
Hispanic	80
Asian	27
Other	49
Native American	12

**Age**
From 65 to 74	690
From 75 to 84	554
85 and over	423
Less than 65	343

Conditions of Medicare patients treated by Dr. Robert D. Lyon, MD in 2020

Hypertension	75
High Cholesterol	65
Stroke	9
Ischemic Heart Disease	53
Depression	36
Chronic Kidney Disease	50
Asthma	13
Osteoperosis	13
Atrial Fibrilation	19
Heart Failure	33
Chronic Obstructive Pulmonary Disease	28
Diabetes	35
Dementia	24
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Robert D. Lyon, MD treated as a radiologist in Mequon, WI during 2021 were CT scan, abdominal imaging, pelvic imaging and thoracic (chest) imaging.

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

abdominal imaging	223
brain imaging (neuroimaging)	81
CT scan	486
musculoskeletal imaging	85
neck imaging	23
pelvic imaging	211
spinal procedures	77
thoracic (chest) imaging	202
ultrasound (sonogram)	135
vascular procedures	107
X-rays	183

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert D. Lyon, MD.

**Gender**
Male	783
Female	1131

**Ethnicity**
Non-Hispanic White	1410
Black	325
Hispanic	94
Asian	0
Other	53
Native American	0

**Age**
From 65 to 74	677
From 75 to 84	507
85 and over	394
Less than 65	336

Conditions of Medicare patients treated by Dr. Robert D. Lyon, MD in 2021

Hypertension	75
High Cholesterol	65
Stroke	11
Ischemic Heart Disease	53
Depression	36
Chronic Kidney Disease	49
Asthma	15
Osteoperosis	15
Atrial Fibrilation	20
Heart Failure	33
Chronic Obstructive Pulmonary Disease	25
Diabetes	34
Dementia	24
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Robert D. Lyon, MD treated as a radiologist in Mequon, WI during 2022 were CT scan, thoracic (chest) imaging, abdominal imaging and pelvic imaging.

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

abdominal imaging	288
brain imaging (neuroimaging)	44
CT scan	637
musculoskeletal imaging	53
neck imaging	11
pelvic imaging	275
spinal procedures	46
thoracic (chest) imaging	319
ultrasound (sonogram)	81
vascular procedures	39
X-rays	117

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert D. Lyon, MD.

**Gender**
Male	721
Female	965

**Ethnicity**
Non-Hispanic White	1287
Black	241
Hispanic	63
Asian	0
Other	56
Native American	0

**Age**
From 65 to 74	598
From 75 to 84	486
85 and over	359
Less than 65	243

Conditions of Medicare patients treated by Dr. Robert D. Lyon, MD in 2022

Hypertension	75
High Cholesterol	73
Stroke	13
Ischemic Heart Disease	43
Depression	34
Chronic Kidney Disease	33
Asthma	15
Osteoperosis	16
Atrial Fibrilation	26
Heart Failure	29
Chronic Obstructive Pulmonary Disease	32
Diabetes	34
Dementia	19
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Robert D. Lyon, MD for Medicare patients.

The highest averages for the top procedures that Dr. Robert D. Lyon, MD treated as a radiologist in Mequon, WI were CT scan, thoracic (chest) imaging, X-rays and vascular procedures.

abdominal imaging	161
angioplasty	22
aspiration	26
brain imaging (neuroimaging)	89
catheterization	29
CT scan	377
diagnostic procedures	14
dialysis access procedures	18
hip imaging	15
hospital care	16
image guided procedures	14
inpatient care	16
minimally invasive procedures	17
minor procedures	14
musculoskeletal imaging	65
neck imaging	16
pelvic imaging	134
pleural drainage	14
preventive care	31
spinal procedures	38
thoracic (chest) imaging	367
ultrasound (sonogram)	173
vascular procedures	178
X-rays	325

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Robert D. Lyon, MD.

**Gender**
Female	811
Male	566

**Ethnicity**
Black / African American	300
Asian / Pacific Islander	2
Non-Hispanic White	973
Hispanic	50
Native American / Alaskan Native	1
Other	27

**Age**
85 and over	283
75 to 84	364
Less than 65	242
65 to 74	487

Average of Total of Conditions of Medicare patients treated by Dr. Robert D. Lyon, MD From 2012 - 2022

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

Hypertension	67
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	44
Depression	29
Chronic Kidney Disease	39
Asthma	14
Osteoporosis	12
Heart Failure	29
Chronic Obstructive Pulmonary Disease	23
Diabetes	32
Atrial Fibrillation	18
Dementia	18
Cancer	15

Education & Training

He has a state license in Wisconsin.

Licensed In: Wisconsin

Ratings & Reviews

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General Payments

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

**Payments by Company**
Edwards Lifesciences Corporation	$927 Edwards SAPIEN 3 Transcatheter Heart Valve $854	Transcatheter Heart Valves $73
Boston Scientific Corporation	$196 GENERAL - VASCULAR INTERVENTION $121	Hypertension $75
Penumbra, Inc.	$100 Penumbra Ruby Coil $100
Medtronic Vascular, Inc.	$96 HawkOne $82	EverCross $14
HeartFlow, Inc.	$72 $72

**Types of Payments**
Food and Beverage	$793
Travel and Lodging	$599

Biography

Dr. Robert Lyon practices interventional radiology/diagnostic radiology (IR/DR) and diagnostic radiology. He studied medicine at George Washington University School of Medicine and Health Sciences.