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Home > CA Providers > Diagnostic Radiologists

Dr. Patricia A. Niemeyer, MD

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Specializes in: Diagnostic Radiology

280 Sierra College Drive Suite 120
Grass Valley, CA 95945

(530) 477-4480

Dr. Patricia A. Niemeyer, MD is a diagnostic radiologist in Grass Valley, CA specializing in diagnostic radiology.

Office Locations

280 Sierra College Drive Suite 120
Grass Valley, CA 95945

(530) 477-4480

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Noteworthy Medicare Patient Procedures Performed by Dr. Patricia A. Niemeyer, MD in 2023

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

Top 5%

By Affordability:

abdominal MRI

In 2023, Dr. Patricia A. Niemeyer, MD had a list price for abdominal MRI that was lower than the list prices billed to Medicare by 95% of providers in related specialties within California. 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 Volume:

CT scan

By Affordability:

retroperitoneal ultrasound

soft tissue ultrasound

thoracic imaging

vascular imaging

vascular procedures

In 2023, among providers in related specialties within California, Dr. Patricia A. Niemeyer, MD performed more CT scan procedures for Medicare patients than 90% of them and she also had a list price for abdominal imaging, leg imaging, neck ultrasound, pelvic CT scan, retroperitoneal ultrasound, soft tissue ultrasound, thoracic (chest) imaging, vascular imaging, and vascular procedures that was lower than the list prices billed to Medicare by 90% 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 25%

By Volume:

abdominal imaging

brain imaging

carotid duplex ultrasound

chest CT scan

lower extremity venous duplex

pelvic CT scan

tibia and fibula X-ray

ultrasound

vascular procedures

vascular ultrasound

By Affordability:

carotid duplex ultrasound

carotid ultrasound

chest CT scan

chest X-ray

complete abdominal ultrasound

limited abdominal ultrasound

lower extremity venous ultrasound

lower extremity venous duplex

lumbar spine CT scan

maxillofacial CT scan

targeted breast ultrasound

thoracic spine CT scan

ultrasound

vascular studies

vascular ultrasound

venous duplex ultrasound

venous ultrasound

In 2012, among providers in related specialties within California, Dr. Patricia A. Niemeyer, MD performed more abdominal imaging, brain imaging (neuroimaging), carotid duplex ultrasound, chest CT scan, lower extremity venous duplex, pelvic CT scan, tibia and fibula (lower leg) X-ray, ultrasound (sonogram), vascular procedures, and vascular ultrasound procedures for Medicare patients than 75% of them and she also had a list price for abdominal CT scan, abdominal ultrasound, bone imaging, brain MRI, breast procedures, breast ultrasound, carotid duplex ultrasound, carotid ultrasound, chest CT scan, chest X-ray, complete abdominal ultrasound, CT scan, duplex ultrasound, foot imaging, head/brain CT scan, leg CT scan, limited abdominal ultrasound, lower extremity (leg) venous ultrasound, lower extremity venous duplex, lumbar spine (low-back) CT scan, maxillofacial (jaw/face) CT scan, neck CT scan, neck imaging, pelvic imaging, rib X-ray, spine CT scan, spine X-ray, targeted breast ultrasound, thoracic spine (mid-back) CT scan, ultrasound (sonogram), vascular studies, vascular ultrasound, venous duplex ultrasound, and venous ultrasound 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. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA during 2012 were X-rays, thoracic (chest) imaging, breast procedures and women's imaging.

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

abdominal imaging	41
brain imaging (neuroimaging)	54
breast procedures	115
CT scan	82
diagnostic imaging	20
pelvic imaging	28
preventive care	95
thoracic (chest) imaging	228
women's imaging	115
X-rays	356

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA during 2013 were X-rays, thoracic (chest) imaging, breast procedures and women's imaging.

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

brain imaging (neuroimaging)	22
breast procedures	92
CT scan	22
diagnostic imaging	14
hip imaging	14
musculoskeletal imaging	28
preventive care	78
thoracic (chest) imaging	121
women's imaging	92
X-rays	241

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Male	168
Female	333

**Ethnicity**
Non-Hispanic White	382
Black	30
Hispanic	47
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	219
From 75 to 84	133
85 and over	72
Less than 65	77

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2013

Hypertension	67
High Cholesterol	53
Stroke	8
Ischemic Heart Disease	38
Depression	29
Chronic Kidney Disease	34
Asthma	11
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	25
Chronic Obstructive Pulmonary Disease	21
Diabetes	31
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA during 2014 were X-rays, thoracic (chest) imaging, breast procedures and preventive care.

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

breast procedures	32
preventive care	32
thoracic (chest) imaging	34
women's imaging	32
X-rays	66

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Male	72
Female	128

**Ethnicity**
Non-Hispanic White	154
Black	11
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	87
From 75 to 84	59
85 and over	28
Less than 65	26

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2014

Hypertension	69
High Cholesterol	54
Stroke	9
Ischemic Heart Disease	32
Depression	26
Chronic Kidney Disease	33
Asthma	9
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	28
Chronic Obstructive Pulmonary Disease	20
Diabetes	37
Dementia	13
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA during 2016 were X-rays, breast procedures, women's imaging and preventive care.

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

breast procedures	86
diagnostic imaging	13
preventive care	56
thoracic (chest) imaging	39
ultrasound (sonogram)	17
women's imaging	86
X-rays	108

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Male	90
Female	179

**Ethnicity**
Non-Hispanic White	192
Black	17
Hispanic	19
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	71
85 and over	37
Less than 65	38

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2016

Hypertension	65
High Cholesterol	57
Stroke	6
Ischemic Heart Disease	25
Depression	21
Chronic Kidney Disease	34
Asthma	20
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	8
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA during 2017 were thoracic (chest) imaging, X-rays, CT scan and abdominal imaging.

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

abdominal imaging	130
brain imaging (neuroimaging)	80
breast procedures	15
CT scan	201
MRI (magnetic resonance imaging)	12
musculoskeletal imaging	13
pelvic imaging	97
preventive care	15
thoracic (chest) imaging	295
ultrasound (sonogram)	89
vascular procedures	56
women's imaging	15
X-rays	287

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Male	366
Female	517

**Ethnicity**
Non-Hispanic White	638
Black	61
Hispanic	77
Asian	77
Other	0
Native American	0

**Age**
From 65 to 74	322
From 75 to 84	263
85 and over	159
Less than 65	139

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2017

Hypertension	73
High Cholesterol	57
Stroke	8
Ischemic Heart Disease	37
Depression	30
Chronic Kidney Disease	48
Asthma	13
Osteoperosis	13
Atrial Fibrilation	17
Heart Failure	26
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Dementia	16
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA during 2018 were CT scan, abdominal imaging, brain imaging (neuroimaging) and pelvic imaging.

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

abdominal imaging	152
brain imaging (neuroimaging)	148
CT scan	321
MRI (magnetic resonance imaging)	36
musculoskeletal imaging	27
pelvic imaging	112
spinal procedures	18
thoracic (chest) imaging	79
ultrasound (sonogram)	73
vascular procedures	33
X-rays	41

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Male	660
Female	866

**Ethnicity**
Non-Hispanic White	1131
Black	50
Hispanic	105
Asian	188
Other	0
Native American	0

**Age**
From 65 to 74	460
From 75 to 84	546
85 and over	396
Less than 65	124

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2018

Hypertension	75
High Cholesterol	65
Stroke	12
Ischemic Heart Disease	46
Depression	30
Chronic Kidney Disease	50
Asthma	11
Osteoperosis	13
Atrial Fibrilation	26
Heart Failure	39
Chronic Obstructive Pulmonary Disease	21
Diabetes	37
Dementia	24
Cancer	20

Medicare Procedure and Patient Information

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Male	82
Female	86

**Ethnicity**
Non-Hispanic White	119
Black	0
Hispanic	0
Asian	32
Other	0
Native American	0

**Age**
From 65 to 74	40
From 75 to 84	57
85 and over	58
Less than 65	13

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2019

Hypertension	75
High Cholesterol	65
Stroke	15
Ischemic Heart Disease	54
Depression	35
Chronic Kidney Disease	52
Asthma	11
Osteoperosis	16
Atrial Fibrilation	25
Heart Failure	41
Chronic Obstructive Pulmonary Disease	0
Diabetes	42
Dementia	34
Cancer	25

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA during 2020 were X-rays, CT scan, women's imaging and breast procedures.

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

abdominal imaging	90
brain imaging (neuroimaging)	65
breast procedures	114
CT scan	134
diagnostic imaging	11
MRI (magnetic resonance imaging)	15
musculoskeletal imaging	70
pelvic imaging	56
preventive care	103
spinal procedures	13
thoracic (chest) imaging	15
ultrasound (sonogram)	51
vascular procedures	17
women's imaging	114
X-rays	184

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Male	258
Female	476

**Ethnicity**
Non-Hispanic White	443
Black	16
Hispanic	195
Asian	65
Other	15
Native American	0

**Age**
From 65 to 74	299
From 75 to 84	240
85 and over	123
Less than 65	72

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2020

Hypertension	73
High Cholesterol	67
Stroke	8
Ischemic Heart Disease	40
Depression	19
Chronic Kidney Disease	38
Asthma	11
Osteoperosis	15
Atrial Fibrilation	15
Heart Failure	27
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA during 2021 were X-rays, CT scan, women's imaging and breast procedures.

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

abdominal imaging	135
brain imaging (neuroimaging)	92
breast procedures	176
CT scan	187
diagnostic imaging	16
hip imaging	15
MRI (magnetic resonance imaging)	46
musculoskeletal imaging	113
pelvic imaging	85
preventive care	133
spinal procedures	30
thoracic (chest) imaging	24
ultrasound (sonogram)	107
vascular procedures	17
women's imaging	176
X-rays	260

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Male	389
Female	680

**Ethnicity**
Non-Hispanic White	641
Black	0
Hispanic	277
Asian	83
Other	43
Native American	0

**Age**
From 65 to 74	432
From 75 to 84	372
85 and over	153
Less than 65	112

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2021

Hypertension	75
High Cholesterol	71
Stroke	8
Ischemic Heart Disease	36
Depression	24
Chronic Kidney Disease	41
Asthma	11
Osteoperosis	15
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	15
Diabetes	37
Dementia	16
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA during 2022 were CT scan, X-rays, brain imaging (neuroimaging) and abdominal imaging.

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

abdominal imaging	72
brain imaging (neuroimaging)	74
breast procedures	69
CT scan	187
MRI (magnetic resonance imaging)	11
musculoskeletal imaging	40
pelvic imaging	59
preventive care	69
spinal procedures	31
thoracic (chest) imaging	34
ultrasound (sonogram)	13
women's imaging	69
X-rays	109

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Male	235
Female	347

**Ethnicity**
Non-Hispanic White	296
Black	0
Hispanic	244
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	242
From 75 to 84	152
85 and over	98
Less than 65	90

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	27
Depression	24
Chronic Kidney Disease	26
Asthma	12
Osteoperosis	20
Atrial Fibrilation	23
Heart Failure	22
Chronic Obstructive Pulmonary Disease	18
Diabetes	41
Dementia	14
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA during 2023 were CT scan, brain imaging (neuroimaging), abdominal imaging and X-rays.

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

abdominal imaging	554
brain imaging (neuroimaging)	575
breast procedures	204
CT scan	1353
diagnostic imaging	16
hip imaging	13
MRI (magnetic resonance imaging)	173
musculoskeletal imaging	255
neck imaging	29
pelvic imaging	436
preventive care	171
spinal procedures	239
thoracic (chest) imaging	241
ultrasound (sonogram)	449
vascular procedures	267
women's imaging	204
X-rays	534

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Male	1261
Female	1670

**Ethnicity**
Non-Hispanic White	1906
Black	0
Hispanic	840
Asian	79
Other	68
Native American	0

**Age**
From 65 to 74	1137
From 75 to 84	917
85 and over	558
Less than 65	319

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2023

Hypertension	75
High Cholesterol	70
Stroke	17
Ischemic Heart Disease	28
Depression	28
Chronic Kidney Disease	30
Asthma	14
Osteoperosis	20
Atrial Fibrilation	27
Heart Failure	26
Chronic Obstructive Pulmonary Disease	21
Diabetes	35
Dementia	14
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Patricia A. Niemeyer, MD for Medicare patients.

The highest averages for the top procedures that Dr. Patricia A. Niemeyer, MD treated as a diagnostic radiologist in Grass Valley, CA were CT scan, X-rays, abdominal imaging and brain imaging (neuroimaging).

abdominal imaging	167
brain imaging (neuroimaging)	138
breast procedures	100
CT scan	310
diagnostic imaging	15
hip imaging	14
MRI (magnetic resonance imaging)	48
musculoskeletal imaging	78
neck imaging	29
pelvic imaging	124
preventive care	83
spinal procedures	66
thoracic (chest) imaging	111
ultrasound (sonogram)	114
vascular procedures	78
women's imaging	100
X-rays	218

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Patricia A. Niemeyer, MD.

**Gender**
Female	480
Male	325

**Ethnicity**
Black / African American	16
Asian / Pacific Islander	54
Non-Hispanic White	536
Hispanic	165
Native American / Alaskan Native	0
Other	11

**Age**
85 and over	152
75 to 84	255
Less than 65	91
65 to 74	305

Average of Total of Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD From 2012 - 2023

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

Hypertension	65
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	35
Asthma	11
Osteoporosis	13
Heart Failure	25
Chronic Obstructive Pulmonary Disease	15
Diabetes	32
Atrial Fibrillation	17
Dementia	15
Cancer	14

Education & Training

She has a state license in Massachusetts.

Licensed In: Massachusetts

Ratings & Reviews

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General Payments

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

**Payments by Company**
EMD Serono, Inc.	$15 $15

**Types of Payments**
Food and Beverage	$15

Select Year:

Dr. Patricia A. Niemeyer, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Patricia A. Niemeyer, MD in 2023

By Affordability:

By Volume:

By Affordability:

By Volume:

By Affordability:

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. Patricia A. Niemeyer, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2014

Medicare Procedure and Patient Information

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patricia A. Niemeyer, 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. Patricia A. Niemeyer, MD From 2012 - 2023

Education & Training

Ratings & Reviews

General Payments

Biography

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