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Dr. John O. Ranker, MD

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Specializes in: Adult Nephrology

University of Cincinnati College of Medicine (2003)

7007 Lighthouse Way
Perrysburg, OH 43551

(419) 874-3246

Dr. John O. Ranker, MD is a nephrologist in Perrysburg, OH specializing in adult nephrology. He graduated from University of Cincinnati College of Medicine in 2003 and has 23 years of experience. Dr. John O. Ranker, MD is affiliated with Mercy Health - St. Vincent Medical Center, Mercy Health, Mercy Health - St. Anne Hospital, Mercy Health - St. Charles Hospital and Mercy Health - Perrysburg Hospital.

Office Locations

1103 Village Square Drive Suite 205
Perrysburg, OH 43551

(419) 874-3246

(419) 874-8475

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Mercy Health - Perrysburg Hospital

7007 Lighthouse Way
Perrysburg, OH 43551

(419) 874-3246

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Noteworthy Medicare Patient Procedures Performed by Dr. John O. Ranker, MD in 2023

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

Top 25%

By Affordability:

hemodialysis

In 2012, Dr. John O. Ranker, MD had a list price for hemodialysis that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Ohio. 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. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2012 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	73
doctor visit	824
hospital care	897
inpatient care	897

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2013 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	132
doctor visit	840
hospital care	993
inpatient care	993

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Male	375
Female	360

**Ethnicity**
Non-Hispanic White	637
Black	49
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	231
From 75 to 84	239
85 and over	102
Less than 65	163

Conditions of Medicare patients treated by Dr. John O. Ranker, MD in 2013

Hypertension	75
High Cholesterol	67
Stroke	11
Ischemic Heart Disease	59
Depression	31
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	7
Atrial Fibrilation	22
Heart Failure	50
Chronic Obstructive Pulmonary Disease	33
Diabetes	65
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2014 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	122
doctor visit	795
hospital care	1102
inpatient care	1102

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Male	427
Female	383

**Ethnicity**
Non-Hispanic White	715
Black	48
Hispanic	34
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	233
From 75 to 84	268
85 and over	128
Less than 65	181

Conditions of Medicare patients treated by Dr. John O. Ranker, MD in 2014

Hypertension	75
High Cholesterol	71
Stroke	11
Ischemic Heart Disease	60
Depression	31
Chronic Kidney Disease	75
Asthma	12
Osteoperosis	9
Atrial Fibrilation	22
Heart Failure	54
Chronic Obstructive Pulmonary Disease	35
Diabetes	65
Dementia	13
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2015 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	81
doctor visit	655
hospital care	712
inpatient care	712

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Male	604
Female	556

**Ethnicity**
Non-Hispanic White	1054
Black	44
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	352
From 75 to 84	388
85 and over	162
Less than 65	258

Conditions of Medicare patients treated by Dr. John O. Ranker, MD in 2015

Hypertension	75
High Cholesterol	74
Stroke	13
Ischemic Heart Disease	56
Depression	29
Chronic Kidney Disease	75
Asthma	24
Osteoperosis	7
Atrial Fibrilation	23
Heart Failure	50
Chronic Obstructive Pulmonary Disease	35
Diabetes	61
Dementia	12
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2016 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	82
doctor visit	689
hospital care	826
inpatient care	826

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Male	314
Female	317

**Ethnicity**
Non-Hispanic White	572
Black	27
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	208
From 75 to 84	214
85 and over	101
Less than 65	108

Conditions of Medicare patients treated by Dr. John O. Ranker, MD in 2016

Hypertension	75
High Cholesterol	74
Stroke	8
Ischemic Heart Disease	57
Depression	30
Chronic Kidney Disease	75
Asthma	32
Osteoperosis	6
Atrial Fibrilation	23
Heart Failure	51
Chronic Obstructive Pulmonary Disease	31
Diabetes	59
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2017 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	124
doctor visit	668
hospital care	1022
inpatient care	1022

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Male	354
Female	338

**Ethnicity**
Non-Hispanic White	612
Black	39
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	215
From 75 to 84	230
85 and over	121
Less than 65	126

Conditions of Medicare patients treated by Dr. John O. Ranker, MD in 2017

Hypertension	75
High Cholesterol	73
Stroke	9
Ischemic Heart Disease	57
Depression	29
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	8
Atrial Fibrilation	25
Heart Failure	51
Chronic Obstructive Pulmonary Disease	33
Diabetes	60
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2018 were hospital care, inpatient care, dialysis and outpatient care.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	124
doctor visit	611
hospital care	993
inpatient care	952
outpatient care	41

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Male	357
Female	326

**Ethnicity**
Non-Hispanic White	616
Black	32
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	243
85 and over	114
Less than 65	119

Conditions of Medicare patients treated by Dr. John O. Ranker, MD in 2018

Hypertension	75
High Cholesterol	74
Stroke	11
Ischemic Heart Disease	56
Depression	32
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	8
Atrial Fibrilation	28
Heart Failure	51
Chronic Obstructive Pulmonary Disease	36
Diabetes	59
Dementia	19
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2019 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	121
doctor visit	691
hospital care	876
inpatient care	876

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Male	355
Female	319

**Ethnicity**
Non-Hispanic White	602
Black	32
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	226
From 75 to 84	236
85 and over	104
Less than 65	108

Conditions of Medicare patients treated by Dr. John O. Ranker, MD in 2019

Hypertension	75
High Cholesterol	72
Stroke	9
Ischemic Heart Disease	54
Depression	30
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	7
Atrial Fibrilation	24
Heart Failure	49
Chronic Obstructive Pulmonary Disease	30
Diabetes	60
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2020 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	69
doctor visit	564
hospital care	750
inpatient care	750

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Male	333
Female	292

**Ethnicity**
Non-Hispanic White	558
Black	24
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	225
From 75 to 84	211
85 and over	105
Less than 65	84

Conditions of Medicare patients treated by Dr. John O. Ranker, MD in 2020

Hypertension	75
High Cholesterol	73
Stroke	10
Ischemic Heart Disease	55
Depression	32
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	5
Atrial Fibrilation	25
Heart Failure	49
Chronic Obstructive Pulmonary Disease	33
Diabetes	61
Dementia	16
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2021 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	50
doctor visit	588
hospital care	728
inpatient care	728

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Male	331
Female	306

**Ethnicity**
Non-Hispanic White	572
Black	23
Hispanic	27
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	231
From 75 to 84	220
85 and over	108
Less than 65	78

Conditions of Medicare patients treated by Dr. John O. Ranker, MD in 2021

Hypertension	75
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	51
Depression	31
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	7
Atrial Fibrilation	22
Heart Failure	46
Chronic Obstructive Pulmonary Disease	26
Diabetes	58
Dementia	18
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH during 2022 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

dialysis	35
doctor visit	551
hospital care	575
inpatient care	575

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Male	286
Female	281

**Ethnicity**
Non-Hispanic White	522
Black	19
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	208
85 and over	97
Less than 65	57

Conditions of Medicare patients treated by Dr. John O. Ranker, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	41
Depression	28
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	11
Atrial Fibrilation	35
Heart Failure	40
Chronic Obstructive Pulmonary Disease	28
Diabetes	56
Dementia	10
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John O. Ranker, MD for Medicare patients.

The highest averages for the top procedures that Dr. John O. Ranker, MD treated as a nephrologist in Perrysburg, OH were hospital care, inpatient care, dialysis and outpatient care.

dialysis	92
doctor visit	679
hospital care	861
inpatient care	857
outpatient care	41

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John O. Ranker, MD.

**Gender**
Female	316
Male	339

**Ethnicity**
Black / African American	30
Asian / Pacific Islander	0
Non-Hispanic White	587
Hispanic	18
Native American / Alaskan Native	0
Other	1

**Age**
85 and over	103
75 to 84	223
Less than 65	116
65 to 74	212

Average of Total of Conditions of Medicare patients treated by Dr. John O. Ranker, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	66
Stroke	9
Ischemic Heart Disease	49
Depression	27
Chronic Kidney Disease	68
Asthma	12
Osteoporosis	6
Heart Failure	44
Chronic Obstructive Pulmonary Disease	29
Diabetes	54
Atrial Fibrillation	22
Dementia	13
Cancer	10

Education & Training

Dr. John O. Ranker, MD graduated from University of Cincinnati College of Medicine in 2003. He completed residency at University of Cincinnati Affiliated Hospitals. He is certified by the American Board of Internal Medicine (Internal Medicine, Nephrology) and has a state license in Ohio.

Medical School: University of Cincinnati College of Medicine (2003)

Residency: University of Cincinnati Affiliated Hospitals (2007)

Board Certification: American Board of Internal Medicine (Internal Medicine, Nephrology)

Licensed In: Ohio

Affiliations & Hospitals

Dr. John O. Ranker, MD is associated with these hospitals and organizations:

Mercy Health - St. Vincent Medical Center

Mercy Health

Mercy Health - St. Anne Hospital

Mercy Health - St. Charles Hospital

Mercy Health - Perrysburg Hospital

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General Payments

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

**Payments by Company**
Daiichi Sankyo Inc.	$19 Injectafer $19

**Types of Payments**
Food and Beverage	$19

Biography

Dr. John Ranker sees patients in Perrysburg, OH. His medical specialty is adult nephrology. Dr. Ranker's education and training includes medical school at the University of Cincinnati College of Medicine and residency at a hospital affiliated with the University of Cincinnati. His hospital/clinic affiliations include Mercy Health - St. Anne Hospital, Mercy Health - St. Vincent Medical Center, and Mercy Health - St. Charles Hospital.