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Dr. Sarah S. Nielsen, DO

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Specializes in: Diagnostic Radiology

Michigan State University College of Osteopathic Medicine (2000)

2727 Plaza Drive
Wausau, WI 54401

(715) 212-3901

Dr. Sarah S. Nielsen, DO is a diagnostic radiologist in Wausau, WI specializing in diagnostic radiology. She graduated from Michigan State University College of Osteopathic Medicine in 2000 and has 26 years of experience. Dr. Sarah S. Nielsen, DO is affiliated with MCHS HOSPITALS INC and MARSHFIELD CLINIC INC.

Office Locations

2727 Plaza Drive
Wausau, WI 54401

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Noteworthy Medicare Patient Procedures Performed by Dr. Sarah S. Nielsen, DO in 2024

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

Top 5%

By Volume:

breast imaging

mammogram

screening mammogram

targeted breast ultrasound

In 2024, Dr. Sarah S. Nielsen, DO performed more breast imaging, mammogram (breast X-ray), screening mammogram, and targeted breast ultrasound procedures for Medicare patients than 95% of providers in related specialties within Wisconsin.

Top 10%

By Volume:

2-D diagnostic mammogram

In 2024, Dr. Sarah S. Nielsen, DO performed more 2-D diagnostic mammogram procedures for Medicare patients than 90% of providers in related specialties within Wisconsin.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2012 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	2061
diagnostic imaging	288
diagnostic procedures	41
excision	21
image guided procedures	52
minimally invasive procedures	52
minor procedures	41
open surgery	21
preventive care	1644
thoracic (chest) imaging	15
ultrasound (sonogram)	77
women's imaging	2009
X-rays	1947

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2013 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	2584
diagnostic imaging	318
diagnostic procedures	47
excision	12
image guided procedures	47
minimally invasive procedures	47
minor procedures	47
musculoskeletal imaging	14
open surgery	12
preventive care	2112
thoracic (chest) imaging	42
ultrasound (sonogram)	107
women's imaging	2537
X-rays	2486

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	84
Female	2389

**Ethnicity**
Non-Hispanic White	2388
Black	0
Hispanic	0
Asian	30
Other	17
Native American	24

**Age**
From 65 to 74	1300
From 75 to 84	620
85 and over	141
Less than 65	412

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2013

Hypertension	58
High Cholesterol	57
Stroke	1
Ischemic Heart Disease	17
Depression	22
Chronic Kidney Disease	21
Asthma	6
Osteoperosis	9
Atrial Fibrilation	5
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	23
Dementia	4
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2014 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	2880
diagnostic imaging	337
diagnostic procedures	66
image guided procedures	66
minimally invasive procedures	66
minor procedures	66
preventive care	2334
thoracic (chest) imaging	25
ultrasound (sonogram)	143
women's imaging	2814
X-rays	2696

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	83
Female	2540

**Ethnicity**
Non-Hispanic White	2510
Black	0
Hispanic	0
Asian	30
Other	28
Native American	35

**Age**
From 65 to 74	1430
From 75 to 84	638
85 and over	134
Less than 65	421

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2014

Hypertension	57
High Cholesterol	56
Stroke	1
Ischemic Heart Disease	18
Depression	23
Chronic Kidney Disease	18
Asthma	6
Osteoperosis	9
Atrial Fibrilation	5
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	24
Dementia	3
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2015 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	2480
diagnostic imaging	189
diagnostic procedures	19
image guided procedures	19
minimally invasive procedures	19
minor procedures	19
musculoskeletal imaging	17
preventive care	2092
thoracic (chest) imaging	20
ultrasound (sonogram)	180
women's imaging	2461
X-rays	2318

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	148
Female	4556

**Ethnicity**
Non-Hispanic White	4474
Black	0
Hispanic	0
Asian	58
Other	48
Native American	100

**Age**
From 65 to 74	2564
From 75 to 84	1194
85 and over	234
Less than 65	712

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2015

Hypertension	56
High Cholesterol	53
Stroke	2
Ischemic Heart Disease	19
Depression	22
Chronic Kidney Disease	21
Asthma	9
Osteoperosis	11
Atrial Fibrilation	6
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	22
Dementia	3
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2016 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	2673
diagnostic imaging	196
diagnostic procedures	33
image guided procedures	33
minimally invasive procedures	33
minor procedures	33
preventive care	2174
ultrasound (sonogram)	270
women's imaging	2640
X-rays	2370

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	21
Female	2193

**Ethnicity**
Non-Hispanic White	2104
Black	0
Hispanic	0
Asian	0
Other	35
Native American	42

**Age**
From 65 to 74	1280
From 75 to 84	501
85 and over	99
Less than 65	334

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2016

Hypertension	56
High Cholesterol	50
Stroke	1
Ischemic Heart Disease	17
Depression	21
Chronic Kidney Disease	23
Asthma	12
Osteoperosis	9
Atrial Fibrilation	6
Heart Failure	8
Chronic Obstructive Pulmonary Disease	9
Diabetes	23
Dementia	3
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2017 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	3433
diagnostic imaging	173
diagnostic procedures	17
image guided procedures	17
minimally invasive procedures	17
minor procedures	17
preventive care	2999
ultrasound (sonogram)	244
women's imaging	3416
X-rays	3172

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	26
Female	2555

**Ethnicity**
Non-Hispanic White	2476
Black	0
Hispanic	0
Asian	19
Other	44
Native American	27

**Age**
From 65 to 74	1452
From 75 to 84	666
85 and over	91
Less than 65	372

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2017

Hypertension	54
High Cholesterol	45
Stroke	1
Ischemic Heart Disease	16
Depression	21
Chronic Kidney Disease	22
Asthma	6
Osteoperosis	10
Atrial Fibrilation	5
Heart Failure	8
Chronic Obstructive Pulmonary Disease	9
Diabetes	20
Dementia	3
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2018 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	2591
diagnostic imaging	132
diagnostic procedures	15
image guided procedures	26
minimally invasive procedures	26
minor procedures	15
preventive care	2275
ultrasound (sonogram)	158
women's imaging	2565
X-rays	2407

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	16
Female	2330

**Ethnicity**
Non-Hispanic White	2243
Black	0
Hispanic	0
Asian	24
Other	42
Native American	19

**Age**
From 65 to 74	1406
From 75 to 84	554
85 and over	79
Less than 65	307

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2018

Hypertension	53
High Cholesterol	50
Stroke	1
Ischemic Heart Disease	17
Depression	22
Chronic Kidney Disease	25
Asthma	4
Osteoperosis	10
Atrial Fibrilation	6
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	22
Dementia	3
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2019 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	2631
diagnostic imaging	139
diagnostic procedures	13
image guided procedures	13
minimally invasive procedures	13
minor procedures	13
preventive care	2289
ultrasound (sonogram)	190
women's imaging	2618
X-rays	2428

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	28
Female	2433

**Ethnicity**
Non-Hispanic White	2351
Black	0
Hispanic	0
Asian	28
Other	49
Native American	19

**Age**
From 65 to 74	1468
From 75 to 84	597
85 and over	67
Less than 65	329

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2019

Hypertension	51
High Cholesterol	48
Stroke	1
Ischemic Heart Disease	18
Depression	21
Chronic Kidney Disease	24
Asthma	5
Osteoperosis	11
Atrial Fibrilation	6
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	20
Dementia	3
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2020 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

abdominal imaging	23
breast procedures	2374
CT scan	50
diagnostic imaging	124
diagnostic procedures	21
image guided procedures	21
minimally invasive procedures	21
minor procedures	21
pelvic imaging	23
preventive care	2033
thoracic (chest) imaging	27
ultrasound (sonogram)	196
women's imaging	2353
X-rays	2157

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	69
Female	2011

**Ethnicity**
Non-Hispanic White	1977
Black	0
Hispanic	0
Asian	29
Other	40
Native American	18

**Age**
From 65 to 74	1244
From 75 to 84	547
85 and over	65
Less than 65	224

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2020

Hypertension	49
High Cholesterol	44
Stroke	1
Ischemic Heart Disease	17
Depression	19
Chronic Kidney Disease	25
Asthma	4
Osteoperosis	10
Atrial Fibrilation	6
Heart Failure	8
Chronic Obstructive Pulmonary Disease	6
Diabetes	20
Dementia	3
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2021 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

abdominal imaging	28
breast procedures	1955
CT scan	58
diagnostic imaging	142
diagnostic procedures	35
image guided procedures	35
minimally invasive procedures	35
minor procedures	35
MRI (magnetic resonance imaging)	14
pelvic imaging	42
preventive care	1568
thoracic (chest) imaging	30
ultrasound (sonogram)	210
women's imaging	1920
X-rays	1710

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	88
Female	1596

**Ethnicity**
Non-Hispanic White	1597
Black	0
Hispanic	0
Asian	22
Other	42
Native American	0

**Age**
From 65 to 74	992
From 75 to 84	421
85 and over	65
Less than 65	206

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2021

Hypertension	53
High Cholesterol	48
Stroke	2
Ischemic Heart Disease	18
Depression	21
Chronic Kidney Disease	25
Asthma	5
Osteoperosis	11
Atrial Fibrilation	6
Heart Failure	8
Chronic Obstructive Pulmonary Disease	6
Diabetes	20
Dementia	2
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2022 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	1702
CT scan	27
diagnostic imaging	81
diagnostic procedures	18
image guided procedures	18
minimally invasive procedures	18
minor procedures	18
preventive care	1467
thoracic (chest) imaging	27
ultrasound (sonogram)	136
women's imaging	1684
X-rays	1548

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	49
Female	1482

**Ethnicity**
Non-Hispanic White	1448
Black	0
Hispanic	0
Asian	31
Other	28
Native American	12

**Age**
From 65 to 74	888
From 75 to 84	406
85 and over	51
Less than 65	186

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2022

Hypertension	65
High Cholesterol	68
Stroke	2
Ischemic Heart Disease	13
Depression	19
Chronic Kidney Disease	18
Asthma	10
Osteoperosis	19
Atrial Fibrilation	10
Heart Failure	7
Chronic Obstructive Pulmonary Disease	8
Diabetes	20
Dementia	2
Cancer	15

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2023 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	2412
diagnostic imaging	100
diagnostic procedures	11
image guided procedures	11
minimally invasive procedures	11
minor procedures	11
preventive care	2149
ultrasound (sonogram)	152
women's imaging	2401
X-rays	2249

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	11
Female	1514

**Ethnicity**
Non-Hispanic White	1453
Black	0
Hispanic	0
Asian	17
Other	34
Native American	0

**Age**
From 65 to 74	871
From 75 to 84	455
85 and over	56
Less than 65	143

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2023

Hypertension	64
High Cholesterol	68
Stroke	2
Ischemic Heart Disease	12
Depression	17
Chronic Kidney Disease	20
Asthma	9
Osteoperosis	21
Atrial Fibrilation	9
Heart Failure	6
Chronic Obstructive Pulmonary Disease	9
Diabetes	20
Dementia	2
Cancer	15

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI during 2024 were breast procedures, women's imaging, X-rays and preventive care.

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

breast procedures	2698
diagnostic imaging	168
preventive care	2310
ultrasound (sonogram)	220
women's imaging	2698
X-rays	2478

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Male	24
Female	1570

**Ethnicity**
Non-Hispanic White	1503
Black	0
Hispanic	0
Asian	28
Other	41
Native American	11

**Age**
From 65 to 74	903
From 75 to 84	483
85 and over	56
Less than 65	152

Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO in 2024

Hypertension	62
High Cholesterol	68
Stroke	2
Ischemic Heart Disease	14
Depression	17
Chronic Kidney Disease	20
Asthma	9
Osteoperosis	22
Atrial Fibrilation	9
Heart Failure	7
Chronic Obstructive Pulmonary Disease	9
Diabetes	21
Dementia	2
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Sarah S. Nielsen, DO for Medicare patients.

The highest averages for the top procedures that Dr. Sarah S. Nielsen, DO treated as a diagnostic radiologist in Wausau, WI were breast procedures, women's imaging, X-rays and preventive care.

abdominal imaging	25
breast procedures	2498
CT scan	45
diagnostic imaging	183
diagnostic procedures	28
excision	16
image guided procedures	29
minimally invasive procedures	29
minor procedures	28
MRI (magnetic resonance imaging)	14
musculoskeletal imaging	15
open surgery	16
pelvic imaging	32
preventive care	2111
thoracic (chest) imaging	26
ultrasound (sonogram)	175
women's imaging	2470
X-rays	2305

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Sarah S. Nielsen, DO.

**Gender**
Female	2089
Male	49

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	24
Non-Hispanic White	2040
Hispanic	0
Native American / Alaskan Native	23
Other	34

**Age**
85 and over	87
75 to 84	544
Less than 65	292
65 to 74	1215

Average of Total of Conditions of Medicare patients treated by Dr. Sarah S. Nielsen, DO From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Sarah S. Nielsen, DO treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	52
High Cholesterol	50
Stroke	1
Ischemic Heart Disease	15
Depression	18
Chronic Kidney Disease	20
Asthma	6
Osteoporosis	11
Heart Failure	7
Chronic Obstructive Pulmonary Disease	7
Diabetes	19
Atrial Fibrillation	6
Cancer	10
Dementia	2

Education & Training

Dr. Sarah S. Nielsen, DO graduated from Michigan State University College of Osteopathic Medicine in 2000. She is certified by the Board Certification: American Osteopathic Association - Diagnostic Radiology and has a state license in Wisconsin.

Medical School: Michigan State University College of Osteopathic Medicine (2000)

Board Certification: Board Certification: American Osteopathic Association - Diagnostic Radiology

Licensed In: Wisconsin

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General Payments

These charts describe general payments received by Dr. Sarah S. Nielsen, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Bard Peripheral Vascular, Inc.	$5,775 Vascular $5,775
Allergan Inc.	$55 LINZESS $31	VRAYLAR $24
HOLOGIC INC	$30 tomosynthesis $30
Siemens Medical Solutions USA, Inc.	$15 XP - Special Products $15