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Dr. William Herndon Johnson, MD

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Specializes in: Diagnostic Radiology

3156 Vista Way Suite 100
Oceanside, CA 92056

(760) 547-8000

Dr. William Herndon Johnson, MD is a diagnostic radiologist in Oceanside, CA specializing in diagnostic radiology.

Office Locations

3156 Vista Way Suite 100
Oceanside, CA 92056

(760) 547-8000

(760) 547-8001

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA during 2012 were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

abdominal imaging	345
brain imaging (neuroimaging)	377
breast procedures	263
CT scan	703
diagnostic imaging	57
gastrointestinal procedures	21
hip imaging	122
MRI (magnetic resonance imaging)	98
musculoskeletal imaging	207
pelvic imaging	304
preventive care	206
spinal procedures	124
thoracic (chest) imaging	1553
ultrasound (sonogram)	255
vascular procedures	177
women's imaging	263
X-rays	2141

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA during 2013 were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

abdominal imaging	401
brain imaging (neuroimaging)	453
breast procedures	99
CT scan	874
diagnostic imaging	15
gastrointestinal procedures	23
hip imaging	111
MRI (magnetic resonance imaging)	116
musculoskeletal imaging	201
neck imaging	13
pelvic imaging	358
preventive care	84
spinal procedures	232
thoracic (chest) imaging	1681
ultrasound (sonogram)	341
vascular procedures	185
women's imaging	112
X-rays	2120

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William Herndon Johnson, MD.

**Gender**
Male	1086
Female	1606

**Ethnicity**
Non-Hispanic White	2036
Black	80
Hispanic	358
Asian	156
Other	43
Native American	19

**Age**
From 65 to 74	780
From 75 to 84	827
85 and over	703
Less than 65	382

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2013

Hypertension	75
High Cholesterol	57
Stroke	13
Ischemic Heart Disease	46
Depression	31
Chronic Kidney Disease	38
Asthma	10
Osteoperosis	16
Atrial Fibrilation	20
Heart Failure	34
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Dementia	23
Cancer	16

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA during 2014 were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

abdominal imaging	58
brain imaging (neuroimaging)	93
CT scan	164
hip imaging	17
MRI (magnetic resonance imaging)	34
musculoskeletal imaging	17
pelvic imaging	69
spinal procedures	24
thoracic (chest) imaging	331
ultrasound (sonogram)	27
vascular procedures	16
X-rays	336

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William Herndon Johnson, MD.

**Gender**
Male	251
Female	349

**Ethnicity**
Non-Hispanic White	477
Black	20
Hispanic	63
Asian	28
Other	0
Native American	0

**Age**
From 65 to 74	173
From 75 to 84	167
85 and over	163
Less than 65	97

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2014

Hypertension	75
High Cholesterol	58
Stroke	15
Ischemic Heart Disease	47
Depression	31
Chronic Kidney Disease	42
Asthma	13
Osteoperosis	17
Atrial Fibrilation	20
Heart Failure	33
Chronic Obstructive Pulmonary Disease	26
Diabetes	36
Dementia	23
Cancer	16

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA during 2015 were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

abdominal imaging	78
brain imaging (neuroimaging)	112
CT scan	230
hip imaging	22
MRI (magnetic resonance imaging)	15
musculoskeletal imaging	22
pelvic imaging	85
spinal procedures	39
thoracic (chest) imaging	376
ultrasound (sonogram)	24
vascular procedures	13
X-rays	389

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William Herndon Johnson, MD.

**Gender**
Male	592
Female	868

**Ethnicity**
Non-Hispanic White	1108
Black	50
Hispanic	170
Asian	88
Other	0
Native American	0

**Age**
From 65 to 74	426
From 75 to 84	442
85 and over	380
Less than 65	212

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2015

Hypertension	75
High Cholesterol	60
Stroke	17
Ischemic Heart Disease	48
Depression	35
Chronic Kidney Disease	47
Asthma	22
Osteoperosis	14
Atrial Fibrilation	24
Heart Failure	41
Chronic Obstructive Pulmonary Disease	28
Diabetes	39
Dementia	25
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA during 2016 were thoracic (chest) imaging, X-rays, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

abdominal imaging	93
brain imaging (neuroimaging)	116
CT scan	242
MRI (magnetic resonance imaging)	14
pelvic imaging	75
spinal procedures	45
thoracic (chest) imaging	451
ultrasound (sonogram)	55
vascular procedures	26
X-rays	431

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William Herndon Johnson, MD.

**Gender**
Male	346
Female	405

**Ethnicity**
Non-Hispanic White	584
Black	25
Hispanic	92
Asian	32
Other	0
Native American	0

**Age**
From 65 to 74	209
From 75 to 84	229
85 and over	187
Less than 65	126

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2016

Hypertension	75
High Cholesterol	58
Stroke	15
Ischemic Heart Disease	49
Depression	42
Chronic Kidney Disease	47
Asthma	27
Osteoperosis	15
Atrial Fibrilation	28
Heart Failure	42
Chronic Obstructive Pulmonary Disease	26
Diabetes	37
Dementia	30
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA during 2017 were thoracic (chest) imaging, X-rays, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

abdominal imaging	77
brain imaging (neuroimaging)	124
CT scan	261
MRI (magnetic resonance imaging)	15
pelvic imaging	76
spinal procedures	60
thoracic (chest) imaging	420
ultrasound (sonogram)	28
vascular procedures	16
X-rays	404

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William Herndon Johnson, MD.

**Gender**
Male	321
Female	374

**Ethnicity**
Non-Hispanic White	510
Black	21
Hispanic	94
Asian	51
Other	0
Native American	0

**Age**
From 65 to 74	188
From 75 to 84	202
85 and over	195
Less than 65	110

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2017

Hypertension	75
High Cholesterol	57
Stroke	15
Ischemic Heart Disease	48
Depression	39
Chronic Kidney Disease	51
Asthma	11
Osteoperosis	14
Atrial Fibrilation	23
Heart Failure	42
Chronic Obstructive Pulmonary Disease	29
Diabetes	41
Dementia	30
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA during 2018 were CT scan, brain imaging (neuroimaging), abdominal imaging and pelvic imaging.

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

abdominal imaging	86
brain imaging (neuroimaging)	118
CT scan	255
MRI (magnetic resonance imaging)	14
pelvic imaging	74
spinal procedures	44
thoracic (chest) imaging	33
ultrasound (sonogram)	24
vascular procedures	12

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William Herndon Johnson, MD.

**Gender**
Male	326
Female	363

**Ethnicity**
Non-Hispanic White	522
Black	20
Hispanic	84
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	203
85 and over	176
Less than 65	89

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2018

Hypertension	75
High Cholesterol	63
Stroke	14
Ischemic Heart Disease	52
Depression	36
Chronic Kidney Disease	56
Asthma	12
Osteoperosis	15
Atrial Fibrilation	25
Heart Failure	44
Chronic Obstructive Pulmonary Disease	29
Diabetes	39
Dementia	34
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA during 2019 were CT scan, brain imaging (neuroimaging), spinal procedures and pelvic imaging.

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

abdominal imaging	68
brain imaging (neuroimaging)	122
CT scan	273
MRI (magnetic resonance imaging)	11
pelvic imaging	68
spinal procedures	79
thoracic (chest) imaging	16
ultrasound (sonogram)	11
vascular procedures	11
X-rays	23

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William Herndon Johnson, MD.

**Gender**
Male	242
Female	354

**Ethnicity**
Non-Hispanic White	439
Black	15
Hispanic	82
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	169
From 75 to 84	187
85 and over	151
Less than 65	89

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2019

Hypertension	75
High Cholesterol	62
Stroke	15
Ischemic Heart Disease	52
Depression	41
Chronic Kidney Disease	53
Asthma	10
Osteoperosis	15
Atrial Fibrilation	22
Heart Failure	42
Chronic Obstructive Pulmonary Disease	26
Diabetes	37
Dementia	30
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA during 2020 were CT scan, brain imaging (neuroimaging), pelvic imaging and abdominal imaging.

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

abdominal imaging	30
brain imaging (neuroimaging)	48
CT scan	92
MRI (magnetic resonance imaging)	12
pelvic imaging	30
spinal procedures	26

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William Herndon Johnson, MD.

**Gender**
Male	136
Female	137

**Ethnicity**
Non-Hispanic White	196
Black	0
Hispanic	32
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	87
From 75 to 84	93
85 and over	57
Less than 65	36

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2020

Hypertension	75
High Cholesterol	62
Stroke	15
Ischemic Heart Disease	52
Depression	40
Chronic Kidney Disease	58
Asthma	13
Osteoperosis	13
Atrial Fibrilation	23
Heart Failure	46
Chronic Obstructive Pulmonary Disease	32
Diabetes	45
Dementia	32
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA during 2021 were CT scan, brain imaging (neuroimaging), pelvic imaging and abdominal imaging.

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

abdominal imaging	33
brain imaging (neuroimaging)	71
CT scan	147
pelvic imaging	33
spinal procedures	32
thoracic (chest) imaging	11

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William Herndon Johnson, MD.

**Gender**
Male	183
Female	181

**Ethnicity**
Non-Hispanic White	264
Black	14
Hispanic	49
Asian	23
Other	0
Native American	0

**Age**
From 65 to 74	119
From 75 to 84	118
85 and over	89
Less than 65	38

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2021

Hypertension	75
High Cholesterol	58
Stroke	13
Ischemic Heart Disease	49
Depression	34
Chronic Kidney Disease	57
Asthma	8
Osteoperosis	12
Atrial Fibrilation	22
Heart Failure	36
Chronic Obstructive Pulmonary Disease	21
Diabetes	37
Dementia	26
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2021

Volume of procedures performed by Dr. William Herndon Johnson, MD for Medicare patients.

The highest averages for the top procedures that Dr. William Herndon Johnson, MD treated as a diagnostic radiologist in Oceanside, CA were X-rays, thoracic (chest) imaging, CT scan and women's imaging.

abdominal imaging	126
brain imaging (neuroimaging)	163
breast procedures	181
CT scan	324
diagnostic imaging	36
gastrointestinal procedures	22
hip imaging	68
MRI (magnetic resonance imaging)	36
musculoskeletal imaging	111
neck imaging	13
pelvic imaging	117
preventive care	145
spinal procedures	70
thoracic (chest) imaging	541
ultrasound (sonogram)	95
vascular procedures	57
women's imaging	187
X-rays	834

Average Medicare Patient Data From 2012 - 2021

Information about Medicare patients treated by Dr. William Herndon Johnson, MD.

**Gender**
Male	348
Female	463

**Ethnicity**
Black / African American	24
Asian / Pacific Islander	43
Non-Hispanic White	613
Hispanic	102
Native American / Alaskan Native	1
Other	4

**Age**
75 to 84	246
85 and over	210
Less than 65	117
65 to 74	237

Average of Total of Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD From 2012 - 2021

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

Hypertension	67
High Cholesterol	53
Stroke	13
Ischemic Heart Disease	44
Depression	32
Chronic Kidney Disease	44
Asthma	12
Osteoporosis	13
Heart Failure	36
Chronic Obstructive Pulmonary Disease	24
Diabetes	34
Atrial Fibrillation	20
Cancer	13
Dementia	25

Education & Training

He has a state license in California.

Licensed In: California

Ratings & Reviews

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General Payments

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

**Payments by Company**
Alexion Pharmaceuticals, Inc.	$19 SOLIRIS $19
Medtronic USA, Inc.	$11 Solitaire $11

**Types of Payments**
Food and Beverage	$30

Biography

Dr. William Johnson is an Oceanside, CA physician who specializes in diagnostic radiology. Dr. Johnson has obtained a license to practice in California.

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Dr. William Herndon Johnson, MD

Office Locations

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. William Herndon Johnson, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD in 2021

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2021

Average Medicare Patient Data From 2012 - 2021

Average of Total of Conditions of Medicare patients treated by Dr. William Herndon Johnson, MD From 2012 - 2021

Education & Training

Ratings & Reviews

General Payments

Biography

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