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Home > CA Providers > Diagnostic Radiologists

Dr. Rachel Knopoff, M.D.

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Specializes in: Diagnostic Radiology

University of California, San Francisco (UCSF), School of Medicine (1991)

3330 Lomita Boulevard
Torrance, CA 90505

(310) 517-4675

Dr. Rachel Knopoff, M.D. is a diagnostic radiologist in Torrance, CA specializing in diagnostic radiology. She graduated from University of California, San Francisco (UCSF), School of Medicine in 1991 and has 33 years of experience. Dr. Rachel Knopoff, M.D. is affiliated with Torrance Memorial Medical Center, TORRANCE HEALTH ASSOCIATION INC and TORRANCE RADIOLOGY MEDICAL GROUP.

Office Locations

Address:

3330 Lomita Boulevard
Torrance, CA 90505

In The News

“The hospital also bought a new scanner that automatically reduces the amount of radiation patients receive, said Dr. Rachel Knopoff, chair of the hospital's Radiology Department.”—"South Bay hospitals compare favorably on consumer website", Daily Breeze, July 2010

abdominal imaging	606
brain imaging (neuroimaging)	169
breast procedures	194
cardiac procedures	45
catheterization	41
CT scan	493
diagnostic imaging	38
hip imaging	32
MRI (magnetic resonance imaging)	64
musculoskeletal imaging	174
neck imaging	35
nuclear scan	57
pelvic imaging	299
preventive care	114
spinal procedures	15
stress testing	45
thoracic (chest) imaging	1000
ultrasound (sonogram)	640
vascular procedures	164
women's imaging	225
X-rays	1237

**Gender**
Male	802
Female	1366

**Ethnicity**
Non-Hispanic White	1305
Black	175
Hispanic	297
Asian	333
Other	0
Native American	0

**Age**
From 65 to 74	728
From 75 to 84	756
85 and over	458
Less than 65	226

Hypertension	75
High Cholesterol	66
Stroke	9
Ischemic Heart Disease	43
Depression	23
Chronic Kidney Disease	40
Asthma	9
Osteoperosis	14
Atrial Fibrilation	17
Heart Failure	31
Chronic Obstructive Pulmonary Disease	19
Diabetes	40
Dementia	21
Cancer	16

abdominal imaging	536
brain imaging (neuroimaging)	178
breast procedures	204
cardiac procedures	42
catheterization	28
CT scan	477
diagnostic imaging	42
hip imaging	34
MRI (magnetic resonance imaging)	81
musculoskeletal imaging	159
neck imaging	35
nuclear scan	41
pelvic imaging	276
preventive care	118
spinal procedures	26
stress testing	42
thoracic (chest) imaging	924
ultrasound (sonogram)	629
vascular procedures	204
women's imaging	237
X-rays	1159

**Gender**
Male	768
Female	1322

**Ethnicity**
Non-Hispanic White	1340
Black	156
Hispanic	258
Asian	277
Other	0
Native American	0

**Age**
From 65 to 74	750
From 75 to 84	727
85 and over	439
Less than 65	174

Hypertension	75
High Cholesterol	63
Stroke	11
Ischemic Heart Disease	42
Depression	21
Chronic Kidney Disease	38
Asthma	11
Osteoperosis	13
Atrial Fibrilation	18
Heart Failure	30
Chronic Obstructive Pulmonary Disease	17
Diabetes	40
Dementia	20
Cancer	18

abdominal imaging	356
aspiration	10
brain imaging (neuroimaging)	124
breast procedures	273
cardiac procedures	26
catheterization	35
CT scan	319
diagnostic imaging	48
diagnostic procedures	14
image guided procedures	14
minimally invasive procedures	14
minor procedures	14
MRI (magnetic resonance imaging)	62
musculoskeletal imaging	136
neck imaging	22
nuclear scan	25
pelvic imaging	199
pleural drainage	10
preventive care	116
stress testing	26
thoracic (chest) imaging	533
ultrasound (sonogram)	460
vascular procedures	138
women's imaging	279
X-rays	768

**Gender**
Male	1106
Female	2038

**Ethnicity**
Non-Hispanic White	2132
Black	192
Hispanic	308
Asian	422
Other	0
Native American	0

**Age**
From 65 to 74	1092
From 75 to 84	1102
85 and over	670
Less than 65	280

Hypertension	75
High Cholesterol	62
Stroke	11
Ischemic Heart Disease	41
Depression	22
Chronic Kidney Disease	39
Asthma	13
Osteoperosis	13
Atrial Fibrilation	18
Heart Failure	29
Chronic Obstructive Pulmonary Disease	18
Diabetes	39
Dementia	20
Cancer	18

abdominal imaging	353
brain imaging (neuroimaging)	152
breast procedures	325
cardiac procedures	23
catheterization	23
CT scan	350
diagnostic imaging	49
diagnostic procedures	13
image guided procedures	13
minimally invasive procedures	13
minor procedures	13
MRI (magnetic resonance imaging)	54
musculoskeletal imaging	149
nuclear scan	22
pelvic imaging	172
preventive care	158
spinal procedures	10
stress testing	23
thoracic (chest) imaging	644
ultrasound (sonogram)	426
vascular procedures	111
women's imaging	329
X-rays	933

**Gender**
Male	578
Female	1122

**Ethnicity**
Non-Hispanic White	1109
Black	111
Hispanic	187
Asian	230
Other	63
Native American	0

**Age**
From 65 to 74	634
From 75 to 84	578
85 and over	355
Less than 65	133

Hypertension	75
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	41
Depression	21
Chronic Kidney Disease	43
Asthma	20
Osteoperosis	11
Atrial Fibrilation	18
Heart Failure	30
Chronic Obstructive Pulmonary Disease	19
Diabetes	39
Dementia	19
Cancer	18

abdominal imaging	311
brain imaging (neuroimaging)	117
breast procedures	398
cardiac procedures	39
catheterization	16
CT scan	311
diagnostic imaging	63
diagnostic procedures	15
image guided procedures	15
minimally invasive procedures	15
minor procedures	15
MRI (magnetic resonance imaging)	44
musculoskeletal imaging	282
nuclear scan	38
pelvic imaging	172
preventive care	149
stress testing	39
thoracic (chest) imaging	593
ultrasound (sonogram)	416
vascular procedures	79
women's imaging	395
X-rays	1015

**Gender**
Male	545
Female	1116

**Ethnicity**
Non-Hispanic White	1028
Black	122
Hispanic	171
Asian	273
Other	0
Native American	0

**Age**
From 65 to 74	652
From 75 to 84	545
85 and over	344
Less than 65	120

Hypertension	73
High Cholesterol	58
Stroke	9
Ischemic Heart Disease	39
Depression	23
Chronic Kidney Disease	42
Asthma	9
Osteoperosis	16
Atrial Fibrilation	17
Heart Failure	29
Chronic Obstructive Pulmonary Disease	15
Diabetes	37
Dementia	20
Cancer	18

abdominal imaging	283
brain imaging (neuroimaging)	139
breast procedures	299
cardiac procedures	35
catheterization	20
CT scan	323
diagnostic imaging	54
MRI (magnetic resonance imaging)	46
musculoskeletal imaging	241
nuclear scan	34
pelvic imaging	158
preventive care	101
spinal procedures	10
stress testing	35
thoracic (chest) imaging	68
ultrasound (sonogram)	353
vascular procedures	64
women's imaging	310
X-rays	403

**Gender**
Male	528
Female	1090

**Ethnicity**
Non-Hispanic White	1037
Black	112
Hispanic	178
Asian	224
Other	0
Native American	0

**Age**
From 65 to 74	647
From 75 to 84	536
85 and over	327
Less than 65	108

Hypertension	74
High Cholesterol	65
Stroke	9
Ischemic Heart Disease	38
Depression	24
Chronic Kidney Disease	44
Asthma	8
Osteoperosis	16
Atrial Fibrilation	17
Heart Failure	27
Chronic Obstructive Pulmonary Disease	14
Diabetes	35
Dementia	20
Cancer	18

abdominal imaging	295
brain imaging (neuroimaging)	110
breast procedures	532
cardiac procedures	27
CT scan	282
diagnostic imaging	64
MRI (magnetic resonance imaging)	81
musculoskeletal imaging	346
nuclear scan	26
pelvic imaging	143
preventive care	298
stress testing	27
thoracic (chest) imaging	65
ultrasound (sonogram)	374
vascular procedures	74
women's imaging	543
X-rays	703

**Gender**
Male	507
Female	1322

**Ethnicity**
Non-Hispanic White	1168
Black	120
Hispanic	197
Asian	254
Other	0
Native American	0

**Age**
From 65 to 74	737
From 75 to 84	616
85 and over	339
Less than 65	137

Hypertension	73
High Cholesterol	66
Stroke	7
Ischemic Heart Disease	38
Depression	24
Chronic Kidney Disease	45
Asthma	9
Osteoperosis	19
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	15
Diabetes	34
Dementia	19
Cancer	17

abdominal imaging	300
brain imaging (neuroimaging)	117
breast procedures	445
cardiac procedures	25
CT scan	313
diagnostic imaging	58
MRI (magnetic resonance imaging)	49
musculoskeletal imaging	260
nuclear scan	24
pelvic imaging	155
preventive care	241
spinal procedures	9
stress testing	25
thoracic (chest) imaging	50
ultrasound (sonogram)	338
vascular procedures	87
women's imaging	445
X-rays	565

**Gender**
Male	516
Female	1166

**Ethnicity**
Non-Hispanic White	1045
Black	129
Hispanic	193
Asian	248
Other	0
Native American	0

**Age**
From 65 to 74	680
From 75 to 84	576
85 and over	295
Less than 65	131

Hypertension	71
High Cholesterol	67
Stroke	8
Ischemic Heart Disease	38
Depression	25
Chronic Kidney Disease	45
Asthma	9
Osteoperosis	18
Atrial Fibrilation	14
Heart Failure	26
Chronic Obstructive Pulmonary Disease	13
Diabetes	36
Dementia	21
Cancer	19

abdominal imaging	777
brain imaging (neuroimaging)	369
breast procedures	1567
cardiac procedures	55
CT scan	900
diagnostic imaging	178
diagnostic procedures	30
image guided procedures	30
minimally invasive procedures	30
minor procedures	30
MRI (magnetic resonance imaging)	197
musculoskeletal imaging	828
neck imaging	17
nuclear scan	54
pelvic imaging	464
preventive care	940
spinal procedures	52
stress testing	55
thoracic (chest) imaging	178
ultrasound (sonogram)	1062
vascular procedures	322
women's imaging	1556
X-rays	1988

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Rachel Knopoff, M.D. for Medicare patients.

The highest averages for the top procedures that Dr. Rachel Knopoff, M.D. treated as a diagnostic radiologist in Torrance, CA were X-rays, ultrasound (sonogram), women's imaging and breast procedures.

abdominal imaging	425
aspiration	10
brain imaging (neuroimaging)	163
breast procedures	472
cardiac procedures	35
catheterization	27
CT scan	420
diagnostic imaging	66
diagnostic procedures	18
hip imaging	33
image guided procedures	18
minimally invasive procedures	18
minor procedures	18
MRI (magnetic resonance imaging)	75
musculoskeletal imaging	289
neck imaging	27
nuclear scan	36
pelvic imaging	227
pleural drainage	10
preventive care	248
spinal procedures	21
stress testing	35
thoracic (chest) imaging	452
ultrasound (sonogram)	525
vascular procedures	139
women's imaging	480
X-rays	980

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Rachel Knopoff, M.D..

**Gender**
Male	535
Female	1054

**Ethnicity**
Black / African American	111
Asian / Pacific Islander	226
Non-Hispanic White	1016
Native American / Alaskan Native	0
Hispanic	178
Other	6

**Age**
75 to 84	543
85 and over	322
Less than 65	130
65 to 74	592

Average of Total of Conditions of Medicare patients treated by Dr. Rachel Knopoff, M.D. From 2013 - 2021

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

Hypertension	59
High Cholesterol	50
Stroke	7
Ischemic Heart Disease	32
Depression	18
Chronic Kidney Disease	33
Asthma	8
Osteoporosis	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Atrial Fibrillation	13
Cancer	14
Dementia	16

Education & Training

Dr. Rachel Knopoff, M.D. graduated from University of California, San Francisco (UCSF), School of Medicine in 1991. She has a state license in California.

Medical School: University of California, San Francisco (UCSF), School of Medicine (1991)

Licensed In: California

Affiliations & Hospitals

Dr. Rachel Knopoff, M.D. is associated with these hospitals and organizations:

Torrance Memorial Medical Center

TORRANCE HEALTH ASSOCIATION INC

TORRANCE RADIOLOGY MEDICAL GROUP

Ratings & Reviews

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General Payments

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

**Payments by Company**
HOLOGIC INC	$291 AFFIRM PRONE $291
Pinnacle Biologics, Inc	$125 Photofrin $125
GE Healthcare	$25 $25
Siemens Medical Solutions USA, Inc.	$23 Mammomat Revelation $23
Covidien Sales LLC	$21 Interventional Lung Solutions $21
Other	$39 LYMPHOSEEK $21	Axumin $18

**Types of Payments**
Food and Beverage	$523

Biography

Dr. Rachel Knopoff, who practices in Torrance, CA, is a medical specialist in diagnostic radiology. Dr. Knopoff is affiliated with Torrance Memorial Medical Center. She is a graduate of the University of California, San Francisco (UCSF), School of Medicine.

Select Year:

Dr. Rachel Knopoff, M.D.

Office Locations

In The News

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rachel Knopoff, M.D. in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rachel Knopoff, M.D. in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rachel Knopoff, M.D. in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rachel Knopoff, M.D. in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rachel Knopoff, M.D. in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rachel Knopoff, M.D. in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rachel Knopoff, M.D. in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rachel Knopoff, M.D. in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Average Medicare Procedure Volume From 2013 - 2021

Average Medicare Patient Data From 2013 - 2021

Average of Total of Conditions of Medicare patients treated by Dr. Rachel Knopoff, M.D. From 2013 - 2021

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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