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Dr. John E. Fassler, MD

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Specializes in: Adult Nephrology

1436 Riverchase Boulevard
Rock Hill, SC 29732

(803) 329-2636

Dr. John E. Fassler, MD is a nephrologist in Rock Hill, SC specializing in adult nephrology.

Office Locations

1436 Riverchase Boulevard
Rock Hill, SC 29732

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322 S Main Street
Lancaster, SC 29720

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In The News

“Dr. John Fassler of Nephrology Associates received the Volunteer of the Year Award from the National Kidney Foundation of South Carolina.”—"Local Newsmakers - July 20, 2008", Rock Hill Herald, July 2008

Noteworthy Medicare Patient Procedures Performed by Dr. John E. Fassler, MD in 2023

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

Top 25%

By Affordability:

lab tests

urine tests

In 2012, Dr. John E. Fassler, MD had a list price for lab tests, and urine tests that was lower than the list prices billed to Medicare by 75% of providers in related specialties within South Carolina. 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 E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2012 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	284
doctor visit	1257
hospital care	727
inpatient care	727
lab tests	81

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2013 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	254
doctor visit	1133
hospital care	859
inpatient care	859
lab tests	78

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	593
Female	629

**Ethnicity**
Non-Hispanic White	747
Black	456
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	433
From 75 to 84	353
85 and over	148
Less than 65	288

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2013

Hypertension	75
High Cholesterol	67
Stroke	9
Ischemic Heart Disease	59
Depression	17
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	6
Atrial Fibrilation	17
Heart Failure	44
Chronic Obstructive Pulmonary Disease	27
Diabetes	60
Dementia	15
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2014 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	257
doctor visit	1114
hospital care	771
inpatient care	771
lab tests	86
preventive care	21
vaccines	21

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	617
Female	628

**Ethnicity**
Non-Hispanic White	785
Black	437
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	456
From 75 to 84	360
85 and over	140
Less than 65	289

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2014

Hypertension	75
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	59
Depression	21
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	4
Atrial Fibrilation	17
Heart Failure	42
Chronic Obstructive Pulmonary Disease	28
Diabetes	60
Dementia	16
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2015 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	292
doctor visit	996
hospital care	686
inpatient care	686
lab tests	97

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	1150
Female	1196

**Ethnicity**
Non-Hispanic White	1432
Black	878
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	854
From 75 to 84	672
85 and over	264
Less than 65	556

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2015

Hypertension	75
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	54
Depression	20
Chronic Kidney Disease	75
Asthma	17
Osteoperosis	4
Atrial Fibrilation	18
Heart Failure	40
Chronic Obstructive Pulmonary Disease	26
Diabetes	60
Dementia	14
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2016 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	306
doctor visit	929
hospital care	692
inpatient care	692
lab tests	89

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	544
Female	537

**Ethnicity**
Non-Hispanic White	683
Black	373
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	382
From 75 to 84	328
85 and over	118
Less than 65	253

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2016

Hypertension	75
High Cholesterol	69
Stroke	9
Ischemic Heart Disease	56
Depression	19
Chronic Kidney Disease	75
Asthma	31
Osteoperosis	5
Atrial Fibrilation	20
Heart Failure	42
Chronic Obstructive Pulmonary Disease	30
Diabetes	61
Dementia	16
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2017 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	333
doctor visit	961
hospital care	639
inpatient care	625
lab tests	94
outpatient care	14

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	530
Female	552

**Ethnicity**
Non-Hispanic White	669
Black	381
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	386
From 75 to 84	359
85 and over	108
Less than 65	229

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2017

Hypertension	75
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	57
Depression	18
Chronic Kidney Disease	75
Asthma	6
Osteoperosis	4
Atrial Fibrilation	19
Heart Failure	42
Chronic Obstructive Pulmonary Disease	28
Diabetes	63
Dementia	17
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2018 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	313
doctor visit	1004
hospital care	665
inpatient care	665
lab tests	120

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	567
Female	594

**Ethnicity**
Non-Hispanic White	731
Black	390
Hispanic	13
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	390
From 75 to 84	384
85 and over	142
Less than 65	245

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2018

Hypertension	75
High Cholesterol	73
Stroke	9
Ischemic Heart Disease	57
Depression	21
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	5
Atrial Fibrilation	18
Heart Failure	41
Chronic Obstructive Pulmonary Disease	25
Diabetes	61
Dementia	18
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2019 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	315
doctor visit	1200
hemofiltration	35
hospital care	623
inpatient care	623
lab tests	96

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	564
Female	586

**Ethnicity**
Non-Hispanic White	755
Black	354
Hispanic	12
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	373
From 75 to 84	396
85 and over	141
Less than 65	240

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2019

Hypertension	75
High Cholesterol	72
Stroke	11
Ischemic Heart Disease	57
Depression	21
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	6
Atrial Fibrilation	19
Heart Failure	40
Chronic Obstructive Pulmonary Disease	26
Diabetes	61
Dementia	20
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2020 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	250
doctor visit	906
hospital care	333
inpatient care	333
lab tests	79
preventive care	11
vaccines	11

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	482
Female	496

**Ethnicity**
Non-Hispanic White	627
Black	323
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	330
From 75 to 84	331
85 and over	115
Less than 65	202

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2020

Hypertension	75
High Cholesterol	71
Stroke	9
Ischemic Heart Disease	54
Depression	19
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	5
Atrial Fibrilation	19
Heart Failure	36
Chronic Obstructive Pulmonary Disease	21
Diabetes	60
Dementia	18
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2021 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	190
doctor visit	914
hospital care	228
inpatient care	228
lab tests	79

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	396
Female	412

**Ethnicity**
Non-Hispanic White	553
Black	233
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	291
85 and over	103
Less than 65	136

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2021

Hypertension	75
High Cholesterol	71
Stroke	8
Ischemic Heart Disease	53
Depression	19
Chronic Kidney Disease	75
Asthma	6
Osteoperosis	6
Atrial Fibrilation	19
Heart Failure	39
Chronic Obstructive Pulmonary Disease	21
Diabetes	61
Dementia	19
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC during 2022 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

dialysis	60
doctor visit	775
hospital care	124
inpatient care	124
lab tests	53

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	340
Female	335

**Ethnicity**
Non-Hispanic White	456
Black	196
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	227
From 75 to 84	265
85 and over	85
Less than 65	98

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	44
Depression	19
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	11
Atrial Fibrilation	27
Heart Failure	34
Chronic Obstructive Pulmonary Disease	24
Diabetes	59
Dementia	12
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John E. Fassler, MD for Medicare patients.

The highest averages for the top procedures that Dr. John E. Fassler, MD treated as a nephrologist in Rock Hill, SC were hospital care, inpatient care, dialysis and lab tests.

dialysis	259
doctor visit	1017
hemofiltration	35
hospital care	577
inpatient care	575
lab tests	86
outpatient care	14
preventive care	16
vaccines	16

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John E. Fassler, MD.

**Gender**
Male	525
Female	542

**Ethnicity**
Black / African American	365
Asian / Pacific Islander	1
Non-Hispanic White	676
Native American / Alaskan Native	0
Hispanic	4
Other	1

**Age**
75 to 84	339
85 and over	124
Less than 65	230
65 to 74	373

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

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

Hypertension	68
High Cholesterol	63
Stroke	8
Ischemic Heart Disease	50
Depression	17
Chronic Kidney Disease	68
Asthma	9
Osteoporosis	5
Heart Failure	36
Chronic Obstructive Pulmonary Disease	23
Diabetes	55
Atrial Fibrillation	17
Dementia	15
Cancer	10

Education & Training

He has a state license in South Carolina.

Licensed In: South Carolina

Ratings & Reviews

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General Payments

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

**Payments by Company**
Mallinckrodt LLC	$267 ACTHAR $267
CALLIDITAS THERAPEUTICS US INC.	$115 TARPEYO $115
Janssen Biotech, Inc.	$100 ZYTIGA $100
Veloxis Pharmaceuticals, Inc.	$96 Envarsus $96
Questcor Pharmaceuticals	$90 ACTHAR $90
Other	$354 Auryxia $75	Velphoro $63	FARXIGA $33	SAMSCA $29	Sensipar $29	Other $124

**Types of Payments**
Food and Beverage	$755
Education	$267

Biography

Dr. John Fassler, who practices in Rock Hill, SC and Lancaster, SC, is a medical specialist in adult nephrology. Dr. Fassler attended medical school at Ohio State University College of Medicine.

Select Year:

Dr. John E. Fassler, MD

Office Locations

In The News

Noteworthy Medicare Patient Procedures Performed by Dr. John E. Fassler, MD 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. John E. Fassler, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John E. Fassler, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John E. Fassler, 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. John E. Fassler, MD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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