In 2023, among providers in related specialties within Mississippi, Dr. Mark N. Klein, MD performed more tunneled central line removal procedures for Medicare patients than 95% of them and he also had a list price for device removal, hemodialysis, and tunneled central line removal that was lower than the list prices billed to Medicare by 95% of them. 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. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2012 were hospital care, inpatient care, blood draw and dialysis.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

angioplasty	57
blood draw	441
dialysis	274
dialysis access procedures	86
doctor visit	345
hospital care	861
inpatient care	861
minimally invasive procedures	21
thrombectomy (blood clot removal)	21
vascular procedures	86
X-rays	65

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2013 were hospital care, inpatient care, dialysis and blood draw.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

angioplasty	41
blood draw	320
dialysis	424
dialysis access procedures	57
doctor visit	251
hospital care	773
inpatient care	773
minimally invasive procedures	12
thrombectomy (blood clot removal)	12
vascular procedures	57
X-rays	45

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	305
Female	291

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

**Age**
From 65 to 74	184
From 75 to 84	161
85 and over	61
Less than 65	190

Conditions of Medicare patients treated by Dr. Mark N. Klein, MD in 2013

Hypertension	75
High Cholesterol	55
Stroke	10
Ischemic Heart Disease	54
Depression	24
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	6
Atrial Fibrilation	16
Heart Failure	60
Chronic Obstructive Pulmonary Disease	27
Diabetes	61
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2014 were hospital care, inpatient care, dialysis and blood draw.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

angioplasty	55
blood draw	66
dialysis	342
dialysis access procedures	64
doctor visit	316
hospital care	857
inpatient care	857
preventive care	13
vaccines	13
vascular procedures	64
X-rays	64

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	317
Female	318

**Ethnicity**
Non-Hispanic White	326
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	179
From 75 to 84	166
85 and over	69
Less than 65	221

Conditions of Medicare patients treated by Dr. Mark N. Klein, MD in 2014

Hypertension	75
High Cholesterol	58
Stroke	14
Ischemic Heart Disease	54
Depression	29
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	7
Atrial Fibrilation	19
Heart Failure	55
Chronic Obstructive Pulmonary Disease	27
Diabetes	62
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2015 were hospital care, inpatient care, dialysis and vascular procedures.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

angioplasty	101
device removal	16
dialysis	307
dialysis access procedures	164
doctor visit	271
hospital care	819
inpatient care	819
minimally invasive procedures	39
thrombectomy (blood clot removal)	39
vascular procedures	164
X-rays	125

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	640
Female	682

**Ethnicity**
Non-Hispanic White	0
Black	684
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	358
From 75 to 84	336
85 and over	126
Less than 65	502

Conditions of Medicare patients treated by Dr. Mark N. Klein, MD in 2015

Hypertension	75
High Cholesterol	57
Stroke	12
Ischemic Heart Disease	56
Depression	25
Chronic Kidney Disease	75
Asthma	14
Osteoperosis	7
Atrial Fibrilation	18
Heart Failure	56
Chronic Obstructive Pulmonary Disease	23
Diabetes	66
Dementia	19
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2016 were hospital care, inpatient care, dialysis and vascular procedures.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

angioplasty	62
dialysis	238
dialysis access procedures	90
doctor visit	316
hospital care	686
inpatient care	686
minimally invasive procedures	13
thrombectomy (blood clot removal)	13
vascular procedures	90
X-rays	77

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	318
Female	312

**Ethnicity**
Non-Hispanic White	0
Black	337
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	180
From 75 to 84	165
85 and over	59
Less than 65	226

Conditions of Medicare patients treated by Dr. Mark N. Klein, MD in 2016

Hypertension	75
High Cholesterol	58
Stroke	12
Ischemic Heart Disease	56
Depression	26
Chronic Kidney Disease	75
Asthma	27
Osteoperosis	5
Atrial Fibrilation	17
Heart Failure	59
Chronic Obstructive Pulmonary Disease	27
Diabetes	66
Dementia	22
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2017 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

dialysis	257
doctor visit	295
hospital care	632
inpatient care	632

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	328
Female	299

**Ethnicity**
Non-Hispanic White	0
Black	343
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	170
85 and over	57
Less than 65	211

Conditions of Medicare patients treated by Dr. Mark N. Klein, MD in 2017

Hypertension	75
High Cholesterol	56
Stroke	12
Ischemic Heart Disease	56
Depression	30
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	4
Atrial Fibrilation	18
Heart Failure	59
Chronic Obstructive Pulmonary Disease	24
Diabetes	70
Dementia	19
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2018 were hospital care, inpatient care, dialysis and device removal.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

device removal	18
dialysis	157
doctor visit	314
hospital care	542
inpatient care	542

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	311
Female	309

**Ethnicity**
Non-Hispanic White	274
Black	329
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	201
From 75 to 84	143
85 and over	53
Less than 65	223

Conditions of Medicare patients treated by Dr. Mark N. Klein, MD in 2018

Hypertension	75
High Cholesterol	58
Stroke	11
Ischemic Heart Disease	52
Depression	26
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	4
Atrial Fibrilation	14
Heart Failure	55
Chronic Obstructive Pulmonary Disease	21
Diabetes	65
Dementia	21
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2019 were hospital care, inpatient care, dialysis and device removal.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

device removal	29
dialysis	176
doctor visit	276
hospital care	489
inpatient care	489

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	299
Female	331

**Ethnicity**
Non-Hispanic White	262
Black	349
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	209
From 75 to 84	141
85 and over	52
Less than 65	228

Conditions of Medicare patients treated by Dr. Mark N. Klein, MD in 2019

Hypertension	75
High Cholesterol	64
Stroke	12
Ischemic Heart Disease	56
Depression	32
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	5
Atrial Fibrilation	16
Heart Failure	56
Chronic Obstructive Pulmonary Disease	24
Diabetes	68
Dementia	18
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2020 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

device removal	24
dialysis	217
doctor visit	321
hemofiltration	34
hospital care	550
inpatient care	550

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	324
Female	353

**Ethnicity**
Non-Hispanic White	285
Black	376
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	220
From 75 to 84	171
85 and over	60
Less than 65	226

Conditions of Medicare patients treated by Dr. Mark N. Klein, MD in 2020

Hypertension	75
High Cholesterol	65
Stroke	12
Ischemic Heart Disease	53
Depression	31
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	59
Chronic Obstructive Pulmonary Disease	21
Diabetes	68
Dementia	17
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2021 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

device removal	11
dialysis	226
doctor visit	303
hemofiltration	43
hospital care	483
inpatient care	483

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	275
Female	312

**Ethnicity**
Non-Hispanic White	270
Black	303
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	168
85 and over	65
Less than 65	165

Conditions of Medicare patients treated by Dr. Mark N. Klein, MD in 2021

Hypertension	75
High Cholesterol	65
Stroke	11
Ischemic Heart Disease	50
Depression	24
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	6
Atrial Fibrilation	16
Heart Failure	51
Chronic Obstructive Pulmonary Disease	21
Diabetes	67
Dementia	20
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS during 2022 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

device removal	14
dialysis	174
doctor visit	315
hemofiltration	35
hospital care	625
inpatient care	625

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	262
Female	286

**Ethnicity**
Non-Hispanic White	271
Black	265
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	168
From 75 to 84	162
85 and over	68
Less than 65	150

Conditions of Medicare patients treated by Dr. Mark N. Klein, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	21
Ischemic Heart Disease	42
Depression	30
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	8
Atrial Fibrilation	30
Heart Failure	52
Chronic Obstructive Pulmonary Disease	26
Diabetes	65
Dementia	16
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mark N. Klein, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark N. Klein, MD treated as a nephrologist in Flowood, MS were inpatient care, hospital care, blood draw and dialysis.

angioplasty	63
blood draw	275
device removal	18
dialysis	253
dialysis access procedures	92
doctor visit	302
hemofiltration	37
hospital care	665
inpatient care	665
minimally invasive procedures	21
preventive care	13
thrombectomy (blood clot removal)	21
vaccines	13
vascular procedures	92
X-rays	75

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mark N. Klein, MD.

**Gender**
Male	307
Female	317

**Ethnicity**
Black / African American	271
Asian / Pacific Islander	0
Non-Hispanic White	180
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	162
85 and over	60
Less than 65	212
65 to 74	188

Average of Total of Conditions of Medicare patients treated by Dr. Mark N. Klein, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	55
Stroke	11
Ischemic Heart Disease	48
Depression	25
Chronic Kidney Disease	68
Asthma	9
Osteoporosis	5
Heart Failure	51
Chronic Obstructive Pulmonary Disease	21
Diabetes	59
Atrial Fibrillation	16
Dementia	17
Cancer	10

Education & Training

He has a state license in Mississippi.

Licensed In: Mississippi

Ratings & Reviews

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General Payments

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

**Payments by Company**
Otsuka America Pharmaceutical, Inc.	$609 SAMSCA $365	JYNARQUE $244
Fresenius USA Marketing, Inc.	$557 Velphoro $471	Dialyzers $17	Not Product Related $17	$52
Amgen Inc.	$490 Parsabiv $329	Sensipar $115	Tavneos $46
W. L. Gore & Associates, Inc.	$272 GORE ACUSEAL Vascular Graft $272
Keryx Biopharmaceuticals, Inc.	$267 Auryxia $267
Other	$2,716 ACTHAR $430	VELTASSA $310	Auryxia $207	Kerendia $187	KRYSTEXXA $174	Other $1,408