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Dr. Willis J. Rieker JR., MD

(Dr. Willis John Rieker Jr., M.D.)

(No ratings)

Specializes in: Cytopathology

Loyola University Chicago, Stritch School of Medicine (1984)

1969 W Hart Road
Beloit, WI 53511

(608) 362-7444

Dr. Willis J. Rieker JR., MD is a cytopathologist in Beloit, WI specializing in cytopathology. He graduated from Loyola University Chicago, Stritch School of Medicine in 1984 and has 42 years of experience. Dr. Willis J. Rieker JR., MD is affiliated with Beloit Health System and HART ROAD PATHOLOGY, SC.

Office Locations

1969 W Hart Road
Beloit, WI 53511

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Noteworthy Medicare Patient Procedures Performed by Dr. Willis J. Rieker JR., MD in 2023

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

Top 5%

By Volume:

intraoperative pathology consultation

lab tests

In 2023, Dr. Willis J. Rieker JR., MD performed more intraoperative pathology consultation, and lab tests procedures for Medicare patients than 95% of providers in related specialties within Wisconsin.

Top 10%

By Volume:

concentrated smear of non-gynecologic specimen

In 2023, Dr. Willis J. Rieker JR., MD performed more concentrated smear (cytospin) of non-gynecologic specimen procedures for Medicare patients than 90% of providers in related specialties within Wisconsin.

Top 25%

By Affordability:

consultation

immunohistochemistry test

intraoperative pathology consultation

In 2012, Dr. Willis J. Rieker JR., MD had a list price for consultation, immunohistochemistry (IHC) test, and intraoperative pathology consultation 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. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2012 were lab tests, consultation and cytology.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	181
cytology	41
lab tests	313

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2013 were lab tests, consultation and cytology.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	113
cytology	26
lab tests	349

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	328
Female	366

**Ethnicity**
Non-Hispanic White	651
Black	29
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	286
From 75 to 84	236
85 and over	90
Less than 65	82

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2013

Hypertension	70
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	35
Depression	19
Chronic Kidney Disease	21
Asthma	9
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Dementia	9
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2014 were lab tests, consultation and cytology.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	153
cytology	18
lab tests	483

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	376
Female	460

**Ethnicity**
Non-Hispanic White	769
Black	39
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	344
From 75 to 84	305
85 and over	96
Less than 65	91

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2014

Hypertension	72
High Cholesterol	67
Stroke	3
Ischemic Heart Disease	38
Depression	17
Chronic Kidney Disease	23
Asthma	10
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	7
Cancer	16

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2015 were lab tests, consultation and cytology.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	132
cytology	27
lab tests	422

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	686
Female	760

**Ethnicity**
Non-Hispanic White	1320
Black	82
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	594
From 75 to 84	476
85 and over	170
Less than 65	206

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2015

Hypertension	75
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	36
Depression	22
Chronic Kidney Disease	23
Asthma	14
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2016 were lab tests, consultation and cytology.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	164
cytology	59
lab tests	587

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	448
Female	436

**Ethnicity**
Non-Hispanic White	804
Black	43
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	376
From 75 to 84	293
85 and over	116
Less than 65	99

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2016

Hypertension	73
High Cholesterol	60
Stroke	4
Ischemic Heart Disease	38
Depression	21
Chronic Kidney Disease	29
Asthma	19
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	10
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2017 were lab tests and consultation.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	84
lab tests	501

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	258
Female	285

**Ethnicity**
Non-Hispanic White	478
Black	33
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	237
From 75 to 84	170
85 and over	69
Less than 65	67

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2017

Hypertension	71
High Cholesterol	53
Stroke	4
Ischemic Heart Disease	36
Depression	20
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	8
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2018 were lab tests, consultation and cytology.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	121
cytology	118
lab tests	638

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	354
Female	349

**Ethnicity**
Non-Hispanic White	637
Black	35
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	316
From 75 to 84	220
85 and over	83
Less than 65	84

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2018

Hypertension	74
High Cholesterol	61
Stroke	3
Ischemic Heart Disease	41
Depression	19
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	10
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2019 were lab tests, consultation and cytology.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	111
cytology	86
lab tests	828

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	378
Female	442

**Ethnicity**
Non-Hispanic White	739
Black	42
Hispanic	0
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	387
From 75 to 84	236
85 and over	103
Less than 65	94

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2019

Hypertension	74
High Cholesterol	63
Stroke	3
Ischemic Heart Disease	38
Depression	21
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	8
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2020 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	72
cytology	109
lab tests	742

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	339
Female	328

**Ethnicity**
Non-Hispanic White	610
Black	26
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	331
From 75 to 84	193
85 and over	74
Less than 65	69

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2020

Hypertension	71
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	43
Depression	20
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	22
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	8
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2021 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	75
cytology	117
lab tests	730

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	339
Female	328

**Ethnicity**
Non-Hispanic White	605
Black	24
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	314
From 75 to 84	229
85 and over	62
Less than 65	62

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2021

Hypertension	70
High Cholesterol	60
Stroke	4
Ischemic Heart Disease	39
Depression	17
Chronic Kidney Disease	36
Asthma	5
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	8
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI during 2022 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

consultation	89
cytology	197
lab tests	622

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	301
Female	341

**Ethnicity**
Non-Hispanic White	582
Black	26
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	320
From 75 to 84	215
85 and over	57
Less than 65	50

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2022

Hypertension	75
High Cholesterol	70
Stroke	5
Ischemic Heart Disease	25
Depression	15
Chronic Kidney Disease	22
Asthma	9
Osteoperosis	9
Atrial Fibrilation	19
Heart Failure	12
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Dementia	4
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Willis J. Rieker JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. Willis J. Rieker JR., MD treated as a cytopathologist in Beloit, WI were lab tests, consultation and cytology.

consultation	117
cytology	79
lab tests	565

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Willis J. Rieker JR., MD.

**Gender**
Male	346
Female	372

**Ethnicity**
Black / African American	34
Asian / Pacific Islander	0
Non-Hispanic White	654
Native American / Alaskan Native	0
Hispanic	7
Other	4

**Age**
75 to 84	233
85 and over	83
Less than 65	82
65 to 74	318

Average of Total of Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Willis J. Rieker JR., MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	65
High Cholesterol	56
Stroke	3
Ischemic Heart Disease	33
Depression	17
Chronic Kidney Disease	25
Asthma	8
Osteoporosis	6
Heart Failure	15
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Atrial Fibrillation	12
Dementia	7
Cancer	13

Education & Training

Dr. Willis J. Rieker JR., MD graduated from Loyola University Chicago, Stritch School of Medicine in 1984. He completed residency at Pathology, Medical Center Aurora, CO. He is certified by the American Board of Pathology and has a state license in Illinois.

Medical School: Loyola University Chicago, Stritch School of Medicine (1984)

Residency: Pathology, Medical Center Aurora, CO (1988)

Board Certification: American Board of Pathology

Licensed In: Illinois

Affiliations & Hospitals

Dr. Willis J. Rieker JR., MD is associated with these hospitals and organizations:

Beloit Health System

HART ROAD PATHOLOGY, SC

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Willis J. Rieker JR., MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$39 XIFAXAN $39
Synergy Pharmaceuticals Inc	$17 Trulance $17

**Types of Payments**
Food and Beverage	$57

Biography

Dr. Willis Rieker sees patients in Beloit, WI. His medical specialty is cytopathology. Dr. Rieker is professionally affiliated with Beloit Health System. He graduated from Loyola University Chicago, Stritch School of Medicine.

Select Year:

Dr. Willis J. Rieker JR., MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Willis J. Rieker JR., MD in 2023

By Volume:

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. Willis J. Rieker JR., MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Willis J. Rieker JR., MD 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. Willis J. Rieker JR., MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Beloit, WI