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Dr. Penny Roumanis Johnson, MD

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Specializes in: Diagnostic Radiology

11411 Brookshire Avenue Suite 101
Downey, CA 90241

(562) 869-9192

Dr. Penny Roumanis Johnson, MD is a diagnostic radiologist in Downey, CA specializing in diagnostic radiology.

Office Locations

11411 Brookshire Avenue Suite 101
Downey, CA 90241

(562) 869-9192

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Noteworthy Medicare Patient Procedures Performed by Dr. Penny Roumanis Johnson, MD in 2023

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

Top 25%

By Volume:

whole breast ultrasound

In 2012, Dr. Penny Roumanis Johnson, MD performed more whole breast ultrasound procedures for Medicare patients than 75% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2012 were X-rays and thoracic (chest) imaging.

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

thoracic (chest) imaging	118
X-rays	118

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2013 were X-rays, thoracic (chest) imaging, breast procedures and women's imaging.

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

abdominal imaging	74
brain imaging (neuroimaging)	19
breast procedures	82
CT scan	79
MRI (magnetic resonance imaging)	12
pelvic imaging	49
preventive care	67
spinal procedures	12
thoracic (chest) imaging	209
ultrasound (sonogram)	40
women's imaging	82
X-rays	265

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Penny Roumanis Johnson, MD.

**Gender**
Male	192
Female	318

**Ethnicity**
Non-Hispanic White	161
Black	17
Hispanic	259
Asian	62
Other	0
Native American	0

**Age**
From 65 to 74	193
From 75 to 84	126
85 and over	62
Less than 65	129

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2013

Hypertension	75
High Cholesterol	54
Stroke	9
Ischemic Heart Disease	40
Depression	29
Chronic Kidney Disease	37
Asthma	11
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	29
Chronic Obstructive Pulmonary Disease	17
Diabetes	50
Dementia	19
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2014 were X-rays, women's imaging, breast procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

abdominal imaging	151
brain imaging (neuroimaging)	36
breast procedures	320
CT scan	74
diagnostic imaging	57
hip imaging	40
MRI (magnetic resonance imaging)	85
musculoskeletal imaging	112
pelvic imaging	63
preventive care	208
spinal procedures	90
thoracic (chest) imaging	113
ultrasound (sonogram)	250
vascular procedures	49
women's imaging	320
X-rays	491

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Penny Roumanis Johnson, MD.

**Gender**
Male	173
Female	630

**Ethnicity**
Non-Hispanic White	111
Black	48
Hispanic	584
Asian	48
Other	0
Native American	0

**Age**
From 65 to 74	369
From 75 to 84	178
85 and over	64
Less than 65	192

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2014

Hypertension	73
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	29
Asthma	10
Osteoperosis	13
Atrial Fibrilation	5
Heart Failure	20
Chronic Obstructive Pulmonary Disease	13
Diabetes	54
Dementia	14
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2015 were X-rays, women's imaging, breast procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

abdominal imaging	199
brain imaging (neuroimaging)	64
breast procedures	558
CT scan	105
diagnostic imaging	69
hip imaging	16
MRI (magnetic resonance imaging)	139
musculoskeletal imaging	218
pelvic imaging	82
preventive care	313
spinal procedures	74
thoracic (chest) imaging	93
ultrasound (sonogram)	354
vascular procedures	26
women's imaging	558
X-rays	658

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Penny Roumanis Johnson, MD.

**Gender**
Male	394
Female	1466

**Ethnicity**
Non-Hispanic White	262
Black	112
Hispanic	1372
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	912
From 75 to 84	404
85 and over	144
Less than 65	400

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2015

Hypertension	71
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	27
Depression	23
Chronic Kidney Disease	29
Asthma	11
Osteoperosis	17
Atrial Fibrilation	6
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	52
Dementia	11
Cancer	7

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2016 were X-rays, women's imaging, breast procedures and preventive care.

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

abdominal imaging	127
brain imaging (neuroimaging)	77
breast procedures	500
CT scan	91
diagnostic imaging	74
hip imaging	29
MRI (magnetic resonance imaging)	160
musculoskeletal imaging	167
pelvic imaging	65
preventive care	290
spinal procedures	47
thoracic (chest) imaging	63
ultrasound (sonogram)	250
vascular procedures	14
women's imaging	500
X-rays	513

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Penny Roumanis Johnson, MD.

**Gender**
Male	118
Female	639

**Ethnicity**
Non-Hispanic White	95
Black	56
Hispanic	564
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	390
From 75 to 84	137
85 and over	48
Less than 65	182

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2016

Hypertension	73
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	29
Depression	22
Chronic Kidney Disease	34
Asthma	16
Osteoperosis	17
Atrial Fibrilation	4
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	55
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2017 were X-rays, women's imaging, breast procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

abdominal imaging	167
brain imaging (neuroimaging)	80
breast procedures	432
CT scan	101
diagnostic imaging	71
hip imaging	51
MRI (magnetic resonance imaging)	202
musculoskeletal imaging	299
pelvic imaging	68
preventive care	247
spinal procedures	134
thoracic (chest) imaging	151
ultrasound (sonogram)	307
vascular procedures	62
women's imaging	432
X-rays	731

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Penny Roumanis Johnson, MD.

**Gender**
Male	221
Female	763

**Ethnicity**
Non-Hispanic White	146
Black	50
Hispanic	696
Asian	63
Other	0
Native American	0

**Age**
From 65 to 74	457
From 75 to 84	214
85 and over	83
Less than 65	230

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2017

Hypertension	73
High Cholesterol	56
Stroke	3
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	37
Asthma	8
Osteoperosis	18
Atrial Fibrilation	6
Heart Failure	23
Chronic Obstructive Pulmonary Disease	13
Diabetes	53
Dementia	14
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2018 were X-rays, women's imaging, breast procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

abdominal imaging	130
brain imaging (neuroimaging)	61
breast procedures	361
CT scan	123
diagnostic imaging	50
hip imaging	25
MRI (magnetic resonance imaging)	115
musculoskeletal imaging	197
pelvic imaging	81
preventive care	215
spinal procedures	104
thoracic (chest) imaging	39
ultrasound (sonogram)	229
vascular procedures	46
women's imaging	361
X-rays	490

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Penny Roumanis Johnson, MD.

**Gender**
Male	236
Female	629

**Ethnicity**
Non-Hispanic White	123
Black	53
Hispanic	633
Asian	43
Other	13
Native American	0

**Age**
From 65 to 74	400
From 75 to 84	199
85 and over	81
Less than 65	185

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2018

Hypertension	72
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	32
Depression	23
Chronic Kidney Disease	39
Asthma	9
Osteoperosis	17
Atrial Fibrilation	5
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	51
Dementia	14
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2019 were X-rays, women's imaging, breast procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

abdominal imaging	212
brain imaging (neuroimaging)	100
breast procedures	473
CT scan	151
diagnostic imaging	68
hip imaging	47
MRI (magnetic resonance imaging)	223
musculoskeletal imaging	296
pelvic imaging	94
preventive care	225
spinal procedures	113
thoracic (chest) imaging	56
ultrasound (sonogram)	404
vascular procedures	72
women's imaging	473
X-rays	561

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2021 were women's imaging, breast procedures, X-rays and ultrasound (sonogram).

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

abdominal imaging	214
brain imaging (neuroimaging)	71
breast procedures	754
CT scan	134
diagnostic imaging	103
hip imaging	21
MRI (magnetic resonance imaging)	128
musculoskeletal imaging	177
pelvic imaging	84
preventive care	339
spinal procedures	47
thoracic (chest) imaging	35
ultrasound (sonogram)	502
vascular procedures	42
women's imaging	754
X-rays	592

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Penny Roumanis Johnson, MD.

**Gender**
Male	223
Female	824

**Ethnicity**
Non-Hispanic White	133
Black	63
Hispanic	765
Asian	58
Other	0
Native American	0

**Age**
From 65 to 74	546
From 75 to 84	222
85 and over	65
Less than 65	214

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2021

Hypertension	72
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	26
Depression	22
Chronic Kidney Disease	40
Asthma	7
Osteoperosis	17
Atrial Fibrilation	4
Heart Failure	20
Chronic Obstructive Pulmonary Disease	10
Diabetes	49
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2022 were women's imaging, breast procedures, X-rays and ultrasound (sonogram).

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

abdominal imaging	196
brain imaging (neuroimaging)	92
breast procedures	681
CT scan	157
diagnostic imaging	115
hip imaging	29
MRI (magnetic resonance imaging)	153
musculoskeletal imaging	134
pelvic imaging	104
preventive care	282
spinal procedures	55
thoracic (chest) imaging	16
ultrasound (sonogram)	436
vascular procedures	26
women's imaging	681
X-rays	471

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Penny Roumanis Johnson, MD.

**Gender**
Male	342
Female	919

**Ethnicity**
Non-Hispanic White	431
Black	113
Hispanic	619
Asian	62
Other	0
Native American	0

**Age**
From 65 to 74	610
From 75 to 84	305
85 and over	132
Less than 65	214

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	25
Depression	24
Chronic Kidney Disease	29
Asthma	11
Osteoperosis	20
Atrial Fibrilation	15
Heart Failure	24
Chronic Obstructive Pulmonary Disease	19
Diabetes	48
Dementia	9
Cancer	15

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA during 2023 were women's imaging, breast procedures, ultrasound (sonogram) and X-rays.

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

abdominal imaging	203
brain imaging (neuroimaging)	37
breast procedures	633
CT scan	29
diagnostic imaging	90
hip imaging	83
MRI (magnetic resonance imaging)	247
musculoskeletal imaging	149
pelvic imaging	68
preventive care	309
spinal procedures	90
ultrasound (sonogram)	496
vascular procedures	49
women's imaging	648
X-rays	428

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Penny Roumanis Johnson, MD.

**Gender**
Male	202
Female	801

**Ethnicity**
Non-Hispanic White	88
Black	61
Hispanic	783
Asian	56
Other	0
Native American	0

**Age**
From 65 to 74	546
From 75 to 84	203
85 and over	62
Less than 65	192

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	18
Depression	21
Chronic Kidney Disease	26
Asthma	12
Osteoperosis	21
Atrial Fibrilation	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	13
Diabetes	53
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Penny Roumanis Johnson, MD for Medicare patients.

The highest averages for the top procedures that Dr. Penny Roumanis Johnson, MD treated as a diagnostic radiologist in Downey, CA were X-rays, women's imaging, breast procedures and ultrasound (sonogram).

abdominal imaging	167
brain imaging (neuroimaging)	63
breast procedures	479
CT scan	104
diagnostic imaging	77
hip imaging	37
MRI (magnetic resonance imaging)	146
musculoskeletal imaging	194
pelvic imaging	75
preventive care	249
spinal procedures	76
thoracic (chest) imaging	89
ultrasound (sonogram)	326
vascular procedures	42
women's imaging	480
X-rays	483

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Penny Roumanis Johnson, MD.

**Gender**
Female	635
Male	191

**Ethnicity**
Black / African American	52
Asian / Pacific Islander	35
Non-Hispanic White	140
Native American / Alaskan Native	0
Hispanic	570
Other	1

**Age**
75 to 84	180
85 and over	67
Less than 65	176
65 to 74	402

Average of Total of Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Penny Roumanis Johnson, MD treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	59
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	23
Depression	18
Chronic Kidney Disease	27
Asthma	8
Osteoporosis	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	42
Atrial Fibrillation	5
Dementia	10
Cancer	7

Education & Training

She has a state license in California.

Licensed In: California

Ratings & Reviews

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Biography

Dr. Penny Johnson's area of specialization is diagnostic radiology. She studied medicine at Northeast Ohio Medical University.

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Dr. Penny Roumanis Johnson, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Penny Roumanis Johnson, 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. Penny Roumanis Johnson, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Medicare Procedure and Patient Information

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Penny Roumanis Johnson, MD From 2012 - 2023

Education & Training

Ratings & Reviews

Biography

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