In 2012, Dr. Douglas P. Duffy, MD, Ofc had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Wisconsin. 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. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2012 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

dialysis	591
doctor visit	81
hemofiltration	73
hospital care	867
inpatient care	867

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2013 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

apheresis	95
dialysis	580
doctor visit	69
hemofiltration	98
hospital care	606
inpatient care	606

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	166
Female	147

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

**Age**
From 65 to 74	107
From 75 to 84	85
85 and over	40
Less than 65	81

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2013

Hypertension	75
High Cholesterol	70
Stroke	7
Ischemic Heart Disease	68
Depression	32
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	12
Atrial Fibrilation	29
Heart Failure	65
Chronic Obstructive Pulmonary Disease	29
Diabetes	60
Dementia	13
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2014 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

blood draw	19
dialysis	601
doctor visit	160
hemofiltration	101
hospital care	672
inpatient care	672

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	186
Female	163

**Ethnicity**
Non-Hispanic White	313
Black	0
Hispanic	0
Asian	0
Other	0
Native American	17

**Age**
From 65 to 74	117
From 75 to 84	91
85 and over	41
Less than 65	100

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2014

Hypertension	75
High Cholesterol	70
Stroke	9
Ischemic Heart Disease	59
Depression	34
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	9
Atrial Fibrilation	29
Heart Failure	57
Chronic Obstructive Pulmonary Disease	30
Diabetes	59
Dementia	11
Cancer	16

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2015 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

blood draw	24
dialysis	355
doctor visit	132
hemofiltration	76
hospital care	732
inpatient care	732
lab tests	13
preventive care	13
vaccines	13

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	352
Female	330

**Ethnicity**
Non-Hispanic White	622
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	204
From 75 to 84	184
85 and over	106
Less than 65	188

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2015

Hypertension	75
High Cholesterol	68
Stroke	13
Ischemic Heart Disease	58
Depression	33
Chronic Kidney Disease	75
Asthma	19
Osteoperosis	11
Atrial Fibrilation	30
Heart Failure	50
Chronic Obstructive Pulmonary Disease	31
Diabetes	53
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2016 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

blood draw	53
dialysis	122
doctor visit	135
hospital care	493
inpatient care	493
lab tests	85

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	122
Female	107

**Age**
From 65 to 74	80
From 75 to 84	69
85 and over	23
Less than 65	57

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2016

Hypertension	75
High Cholesterol	66
Stroke	12
Ischemic Heart Disease	57
Depression	30
Chronic Kidney Disease	75
Asthma	28
Osteoperosis	12
Atrial Fibrilation	23
Heart Failure	50
Chronic Obstructive Pulmonary Disease	27
Diabetes	56
Dementia	19
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2017 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

blood draw	52
dialysis	263
doctor visit	132
hospital care	505
inpatient care	505
lab tests	102

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	142
Female	121

**Ethnicity**
Non-Hispanic White	243
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	87
85 and over	29
Less than 65	61

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2017

Hypertension	75
High Cholesterol	65
Stroke	10
Ischemic Heart Disease	61
Depression	33
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	14
Atrial Fibrilation	25
Heart Failure	57
Chronic Obstructive Pulmonary Disease	29
Diabetes	58
Dementia	25
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2018 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

dialysis	353
hemofiltration	79
hospital care	422
inpatient care	422

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	106
Female	93

**Ethnicity**
Non-Hispanic White	173
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	51
85 and over	22
Less than 65	62

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2018

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	74
Depression	41
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	13
Atrial Fibrilation	34
Heart Failure	75
Chronic Obstructive Pulmonary Disease	32
Diabetes	69
Dementia	22
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2019 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

dialysis	91
doctor visit	12
hospital care	304
inpatient care	304

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	96
Female	85

**Ethnicity**
Non-Hispanic White	134
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	62
From 75 to 84	45
85 and over	16
Less than 65	58

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2019

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	72
Depression	38
Chronic Kidney Disease	75
Asthma	15
Osteoperosis	11
Atrial Fibrilation	27
Heart Failure	63
Chronic Obstructive Pulmonary Disease	38
Diabetes	69
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2020 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

dialysis	53
hospital care	148
inpatient care	148

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	52
Female	41

**Ethnicity**
Non-Hispanic White	74
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	31
From 75 to 84	28
85 and over	14
Less than 65	20

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2020

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	48
Chronic Kidney Disease	75
Asthma	13
Osteoperosis	0
Atrial Fibrilation	39
Heart Failure	74
Chronic Obstructive Pulmonary Disease	30
Diabetes	68
Dementia	22
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2021 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

dialysis	203
doctor visit	23
hemofiltration	63
hospital care	222
inpatient care	222

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	77
Female	70

**Ethnicity**
Non-Hispanic White	114
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	53
From 75 to 84	0
85 and over	0
Less than 65	49

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2021

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	73
Depression	39
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	11
Atrial Fibrilation	30
Heart Failure	71
Chronic Obstructive Pulmonary Disease	34
Diabetes	69
Dementia	17
Cancer	18

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI during 2022 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

dialysis	55
doctor visit	19
hospital care	87
inpatient care	87

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	39
Female	41

**Ethnicity**
Non-Hispanic White	69
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	32
From 75 to 84	19
85 and over	12
Less than 65	17

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2022

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	56
Depression	41
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	41
Heart Failure	59
Chronic Obstructive Pulmonary Disease	43
Diabetes	56
Dementia	18
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Douglas P. Duffy, MD, Ofc for Medicare patients.

The highest averages for the top procedures that Dr. Douglas P. Duffy, MD, Ofc treated as a nephrologist in Marshfield, WI were hospital care, inpatient care, dialysis and apheresis.

apheresis	95
blood draw	37
dialysis	297
doctor visit	84
hemofiltration	81
hospital care	459
inpatient care	459
lab tests	66
preventive care	13
vaccines	13

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc.

**Gender**
Male	121
Female	108

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	185
Native American / Alaskan Native	1
Hispanic	0
Other	0

**Age**
75 to 84	59
85 and over	27
Less than 65	63
65 to 74	76

Average of Total of Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Douglas P. Duffy, MD, Ofc treated were chronic kidney disease, hypertension, high cholesterol and ischemic heart disease.

Hypertension	68
High Cholesterol	64
Stroke	8
Ischemic Heart Disease	59
Depression	33
Chronic Kidney Disease	68
Asthma	11
Osteoporosis	8
Heart Failure	56
Chronic Obstructive Pulmonary Disease	29
Diabetes	56
Atrial Fibrillation	27
Dementia	16
Cancer	13

Education & Training

He has a state license in North Dakota.

Licensed In: North Dakota

Ratings & Reviews

Dr. Douglas P. Duffy, MD, Ofc has a good overall rating with an average of 3.0 out of 5 stars based on 2 ratings. We collect ratings and reviews of Dr. Douglas P. Duffy, MD, Ofc from all over the web to help you find the right in Marshfield, WI.

Overall Rating

(2 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. Douglas P. Duffy, MD, Ofc. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Shire North American Group Inc	$77 GATTEX $77
Questcor Pharmaceuticals	$17 ACTHAR $17

**Types of Payments**
Food and Beverage	$77
Education	$17

Biography

Dr. Douglas Duffy has obtained a license to practice in North Dakota.

Select Year:

Dr. Douglas P. Duffy, MD, Ofc

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Douglas P. Duffy, MD, Ofc in 2023

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. Douglas P. Duffy, MD, Ofc in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Douglas P. Duffy, MD, Ofc From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

Other Providers in Marshfield, WI