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Home > WI Providers

Dr. Peter Haan Johnson, MD

Accepting New Patients

(465 Ratings)

Specializes in: Adult Oncology and Adult Hematology

University of Kentucky College of Medicine

721 American Avenue Suite 108
Waukesha, WI 53188

(262) 928-5350

Dr. Peter Haan Johnson, MD is an oncologist in Milwaukee, WI specializing in adult oncology and adult hematology. He graduated from University of Kentucky College of Medicine. Dr. Peter Haan Johnson, MD is affiliated with Ascension.

Office Locations

Ascension

2350 N Lake Drive Suite 100
Milwaukee, WI 53211

(414) 298-7250

(414) 298-7251

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2845 Greenbrier Rd Green
Bay, WI 54311

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721 American Avenue Suite 108
Waukesha, WI 53188

(262) 928-5350

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	533
hospital care	171
inpatient care	171

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	498
hospital care	226
inpatient care	226

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	77
Female	168

**Age**
From 65 to 74	121
From 75 to 84	78
85 and over	24
Less than 65	22

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2013

Hypertension	56
High Cholesterol	49
Stroke	8
Ischemic Heart Disease	47
Depression	21
Chronic Kidney Disease	29
Asthma	11
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	22
Diabetes	24
Dementia	9
Cancer	62

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	473
hospital care	207
inpatient care	207

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	77
Female	179

**Ethnicity**
Non-Hispanic White	245
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	86
85 and over	27
Less than 65	20

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2014

Hypertension	60
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	36
Depression	17
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	23
Dementia	7
Cancer	56

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	490
hospital care	192
inpatient care	192

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	180
Female	372

**Ethnicity**
Non-Hispanic White	514
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	180
85 and over	54
Less than 65	40

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2015

Hypertension	64
High Cholesterol	50
Stroke	5
Ischemic Heart Disease	33
Depression	18
Chronic Kidney Disease	29
Asthma	14
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	16
Chronic Obstructive Pulmonary Disease	16
Diabetes	23
Dementia	6
Cancer	56

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	635
hospital care	210
inpatient care	210

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	100
Female	216

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

**Age**
From 65 to 74	149
From 75 to 84	100
85 and over	37
Less than 65	30

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2016

Hypertension	64
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	34
Depression	21
Chronic Kidney Disease	30
Asthma	22
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	7
Cancer	53

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	337
hospital care	90
inpatient care	90

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	69
Female	130

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

**Age**
From 65 to 74	95
From 75 to 84	52
85 and over	25
Less than 65	27

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2017

Hypertension	67
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	40
Depression	17
Chronic Kidney Disease	37
Asthma	12
Osteoperosis	12
Atrial Fibrilation	8
Heart Failure	15
Chronic Obstructive Pulmonary Disease	18
Diabetes	30
Dementia	11
Cancer	55

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	486
hospital care	164
inpatient care	164

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	70
Female	89

**Ethnicity**
Non-Hispanic White	102
Black	44
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	41
85 and over	15
Less than 65	22

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2018

Hypertension	65
High Cholesterol	61
Stroke	7
Ischemic Heart Disease	50
Depression	26
Chronic Kidney Disease	41
Asthma	10
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	22
Chronic Obstructive Pulmonary Disease	23
Diabetes	29
Dementia	16
Cancer	52

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	566
hospital care	173
inpatient care	173

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	83
Female	115

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

**Age**
From 65 to 74	106
From 75 to 84	49
85 and over	22
Less than 65	21

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2019

Hypertension	69
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	47
Depression	23
Chronic Kidney Disease	38
Asthma	9
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	21
Diabetes	26
Dementia	15
Cancer	53

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	493
hospital care	98
inpatient care	98

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	78
Female	121

**Ethnicity**
Non-Hispanic White	145
Black	43
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	48
85 and over	21
Less than 65	25

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2020

Hypertension	63
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	41
Depression	28
Chronic Kidney Disease	41
Asthma	8
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	18
Diabetes	31
Dementia	15
Cancer	54

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	506
hospital care	52
inpatient care	52

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	73
Female	114

**Ethnicity**
Non-Hispanic White	134
Black	41
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	103
From 75 to 84	46
85 and over	17
Less than 65	21

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2021

Hypertension	66
High Cholesterol	55
Stroke	7
Ischemic Heart Disease	48
Depression	27
Chronic Kidney Disease	37
Asthma	9
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Dementia	9
Cancer	48

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	454
hospital care	17
inpatient care	17

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	76
Female	120

**Ethnicity**
Non-Hispanic White	145
Black	34
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	100
From 75 to 84	57
85 and over	23
Less than 65	16

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2022

Hypertension	69
High Cholesterol	68
Stroke	8
Ischemic Heart Disease	24
Depression	21
Chronic Kidney Disease	23
Asthma	12
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	12
Chronic Obstructive Pulmonary Disease	22
Diabetes	24
Dementia	0
Cancer	54

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI during 2023 were hospital care and inpatient care.

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	448
hospital care	12
inpatient care	12

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	68
Female	126

**Ethnicity**
Non-Hispanic White	151
Black	28
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	59
85 and over	20
Less than 65	14

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2023

Hypertension	68
High Cholesterol	70
Stroke	0
Ischemic Heart Disease	25
Depression	19
Chronic Kidney Disease	23
Asthma	9
Osteoperosis	19
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	20
Diabetes	26
Dementia	6
Cancer	57

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

doctor visit	345

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Male	64
Female	105

**Ethnicity**
Non-Hispanic White	117
Black	34
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	53
85 and over	12
Less than 65	14

Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD in 2024

Hypertension	68
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	25
Depression	19
Chronic Kidney Disease	24
Asthma	9
Osteoperosis	22
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	23
Diabetes	33
Dementia	7
Cancer	56

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Peter Haan Johnson, MD for Medicare patients.

The highest averages for the top procedures that Dr. Peter Haan Johnson, MD treated as an oncologist in Milwaukee, WI were hospital care and inpatient care.

doctor visit	481
hospital care	134
inpatient care	134

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Peter Haan Johnson, MD.

**Gender**
Female	142
Male	78

**Ethnicity**
Black / African American	17
Asian / Pacific Islander	0
Non-Hispanic White	166
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	65
85 and over	22
Less than 65	20
65 to 74	111

Average of Total of Conditions of Medicare patients treated by Dr. Peter Haan Johnson, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Peter Haan Johnson, MD treated were hypertension, high cholesterol, cancer and ischemic heart disease.

Hypertension	59
High Cholesterol	53
Stroke	3
Ischemic Heart Disease	34
Depression	19
Chronic Kidney Disease	29
Asthma	10
Osteoporosis	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	17
Diabetes	24
Atrial Fibrillation	11
Dementia	8
Cancer	50

Education & Training

Dr. Peter Haan Johnson, MD graduated from University of Kentucky College of Medicine. He completed residency at Beth Israel Deaconess Medical Center. He is certified by the Certifications: The American Board of Internal Medicine - Hematology and has a state license in Texas.

Medical School: University of Kentucky College of Medicine

Residency: Beth Israel Deaconess Medical Center

Board Certification: Certifications: The American Board of Internal Medicine - Hematology

Licensed In: Texas

Affiliations & Hospitals

Dr. Peter Haan Johnson, MD is associated with these hospitals and organizations:

Ascension

Ratings & Reviews

Dr. Peter Haan Johnson, MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 465 ratings. We collect ratings and reviews of Dr. Peter Haan Johnson, MD from all over the web to help you find the right in Milwaukee, WI.

4.9

Overall Rating

(465 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
TESARO, Inc.	$111 ZEJULA $111
Genentech, Inc.	$99 Non-Covered Product $99
Genentech USA, Inc.	$19 TECENTRIQ $19
E.R. Squibb & Sons, L.L.C.	$17 OPDIVO $17
EISAI INC.	$15 Lenvima $15
Other	$35 ABILIFY MAINTENA $13	Venclexta $11	AmBisome $11

**Types of Payments**
Food and Beverage	$264
Education	$31

Research Payments

Dr. Peter Haan Johnson, MD has received 1 research payments totaling $77,789.

Biography

Dr. Peter Johnson's areas of specialization are adult hematology and adult oncology; he sees patients in Waukesha, WI and Milwaukee, WI. The average patient rating for Dr. Johnson is 5.0 stars (out of 5). After completing medical school at the University of Kentucky College of Medicine, he performed his residency at Beth Israel Deaconess Medical Center. His professional affiliations include Ascension Sacred Heart Rehabilitation Hospital and Ascension Columbia St. Mary's Hospital Ozaukee. Dr. Johnson has an open panel in Milwaukee, WI according to Ascension.