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Dr. Mark Blackwelder, MD

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Specializes in: Internal Medicine (Adult Medicine)

Louisiana State University School of Medicine in Shreveport (1985)

1200 South Farmerville Street
Ruston, LA 71270

(318) 251-6188

Dr. Mark Blackwelder, MD is an internist in Ruston, LA specializing in internal medicine (adult medicine). He graduated from Louisiana State University School of Medicine in Shreveport in 1985 and has 40 years of experience. Dr. Mark Blackwelder, MD is affiliated with Northern Louisiana Medical Center and GREEN CLINIC LLC.

Office Locations

1200 South Farmerville Street
Ruston, LA 71270

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Noteworthy Medicare Patient Procedures Performed by Dr. Mark Blackwelder, MD in 2023

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

Top 5%

By Volume:

inpatient hospital care

In 2023, Dr. Mark Blackwelder, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 95% of providers in related specialties within Louisiana.

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2013 were hospital care, inpatient care, nursing home care and lab tests.

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

doctor visit	1136
hospital care	1083
inpatient care	1042
lab tests	159
minimally invasive procedures	25
nursing home care	375
outpatient care	41
preventive care	133
vaccines	133

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	208
Female	275

**Ethnicity**
Non-Hispanic White	335
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	184
From 75 to 84	141
85 and over	119
Less than 65	39

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

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2013 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	75
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	41
Depression	14
Chronic Kidney Disease	31
Asthma	5
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	17
Diabetes	48
Dementia	21
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2014 were hospital care, inpatient care, nursing home care and lab tests.

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

doctor visit	1073
hospital care	617
inpatient care	617
lab tests	171
minimally invasive procedures	23
nursing home care	302
preventive care	170
vaccines	170

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	187
Female	247

**Ethnicity**
Non-Hispanic White	304
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	193
From 75 to 84	110
85 and over	99
Less than 65	32

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

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2014 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	70
High Cholesterol	51
Stroke	7
Ischemic Heart Disease	37
Depression	12
Chronic Kidney Disease	27
Asthma	3
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	12
Diabetes	47
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2015 were hospital care, inpatient care, nursing home care and preventive care.

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

doctor visit	1041
hospital care	747
inpatient care	747
lab tests	151
minimally invasive procedures	22
nursing home care	311
preventive care	207
vaccines	207

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	360
Female	498

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

**Age**
From 65 to 74	418
From 75 to 84	220
85 and over	180
Less than 65	40

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

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2015 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	71
High Cholesterol	47
Stroke	7
Ischemic Heart Disease	37
Depression	16
Chronic Kidney Disease	31
Asthma	7
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	25
Chronic Obstructive Pulmonary Disease	10
Diabetes	46
Dementia	17
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2016 were hospital care, inpatient care, nursing home care and preventive care.

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

doctor visit	1139
hospital care	814
inpatient care	798
lab tests	142
nursing home care	348
outpatient care	16
preventive care	210
vaccines	210

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	193
Female	236

**Ethnicity**
Non-Hispanic White	288
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	209
From 75 to 84	113
85 and over	83
Less than 65	24

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

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2016 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	70
High Cholesterol	55
Stroke	8
Ischemic Heart Disease	36
Depression	16
Chronic Kidney Disease	48
Asthma	14
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	24
Chronic Obstructive Pulmonary Disease	12
Diabetes	48
Dementia	20
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2017 were hospital care, inpatient care, preventive care and vaccines.

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

breathing treatment	11
doctor visit	1093
hospital care	2420
inpatient care	2406
lab tests	106
nursing home care	119
outpatient care	14
preventive care	156
vaccines	156

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	272
Female	314

**Ethnicity**
Non-Hispanic White	377
Black	197
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	254
From 75 to 84	157
85 and over	113
Less than 65	62

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

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2017 were hypertension, chronic kidney disease, high cholesterol and diabetes.

Hypertension	75
High Cholesterol	58
Stroke	11
Ischemic Heart Disease	40
Depression	22
Chronic Kidney Disease	58
Asthma	5
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	34
Chronic Obstructive Pulmonary Disease	20
Diabetes	53
Dementia	30
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2018 were hospital care, inpatient care, nursing home care and preventive care.

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

doctor visit	973
hospital care	2797
inpatient care	2797
lab tests	85
nursing home care	139
preventive care	94
vaccines	94

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	325
Female	335

**Ethnicity**
Non-Hispanic White	440
Black	209
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	287
From 75 to 84	192
85 and over	104
Less than 65	77

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

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2018 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	75
High Cholesterol	61
Stroke	11
Ischemic Heart Disease	41
Depression	24
Chronic Kidney Disease	53
Asthma	5
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	33
Chronic Obstructive Pulmonary Disease	23
Diabetes	48
Dementia	34
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2019 were hospital care, inpatient care, preventive care and vaccines.

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

doctor visit	854
hospital care	2483
inpatient care	2469
nursing home care	103
outpatient care	14
preventive care	125
vaccines	125

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	304
Female	319

**Ethnicity**
Non-Hispanic White	405
Black	203
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	235
From 75 to 84	185
85 and over	118
Less than 65	85

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

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2019 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	75
High Cholesterol	60
Stroke	11
Ischemic Heart Disease	43
Depression	24
Chronic Kidney Disease	55
Asthma	4
Osteoperosis	9
Atrial Fibrilation	19
Heart Failure	37
Chronic Obstructive Pulmonary Disease	22
Diabetes	52
Dementia	36
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2020 were hospital care, inpatient care, preventive care and vaccines.

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

blood draw	12
doctor visit	709
hospital care	2492
inpatient care	2492
preventive care	79
vaccines	79

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	256
Female	292

**Ethnicity**
Non-Hispanic White	357
Black	178
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	223
From 75 to 84	167
85 and over	98
Less than 65	60

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

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2020 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	75
High Cholesterol	61
Stroke	11
Ischemic Heart Disease	40
Depression	23
Chronic Kidney Disease	55
Asthma	5
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	37
Chronic Obstructive Pulmonary Disease	22
Diabetes	55
Dementia	32
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2021 were hospital care, inpatient care, preventive care and vaccines.

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

doctor visit	651
hospital care	2455
inpatient care	2455
preventive care	24
vaccines	24

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	265
Female	290

**Ethnicity**
Non-Hispanic White	381
Black	154
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	230
From 75 to 84	177
85 and over	89
Less than 65	59

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

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2021 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	75
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	39
Depression	21
Chronic Kidney Disease	54
Asthma	5
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	33
Chronic Obstructive Pulmonary Disease	20
Diabetes	51
Dementia	31
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2022 were hospital care, inpatient care, preventive care and vaccines.

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

doctor visit	701
hospital care	2498
inpatient care	2498
preventive care	33
vaccines	33

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	255
Female	278

**Ethnicity**
Non-Hispanic White	370
Black	143
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	180
85 and over	105
Less than 65	38

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

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2022 were high cholesterol, hypertension, diabetes and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	19
Ischemic Heart Disease	35
Depression	19
Chronic Kidney Disease	34
Asthma	6
Osteoperosis	15
Atrial Fibrilation	32
Heart Failure	38
Chronic Obstructive Pulmonary Disease	25
Diabetes	50
Dementia	20
Cancer	17

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA during 2023 were hospital care, inpatient care, preventive care and vaccines.

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

doctor visit	724
hospital care	1932
inpatient care	1932
preventive care	13
vaccines	13

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	228
Female	265

**Ethnicity**
Non-Hispanic White	355
Black	119
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	196
From 75 to 84	184
85 and over	81
Less than 65	32

Conditions of Medicare patients treated by Dr. Mark Blackwelder, MD in 2023

The most common conditions of Medicare patients that Dr. Mark Blackwelder, MD treated during 2023 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	35
Depression	22
Chronic Kidney Disease	30
Asthma	10
Osteoperosis	16
Atrial Fibrilation	29
Heart Failure	32
Chronic Obstructive Pulmonary Disease	26
Diabetes	49
Dementia	19
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

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

The highest averages for the top procedures that Dr. Mark Blackwelder, MD treated as an internist in Ruston, LA were hospital care, inpatient care, nursing home care and lab tests.

blood draw	12
doctor visit	917
hospital care	1848
inpatient care	1841
lab tests	135
minimally invasive procedures	23
nursing home care	242
outpatient care	21
preventive care	113
vaccines	113

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Mark Blackwelder, MD.

**Gender**
Male	259
Female	304

**Ethnicity**
Black / African American	109
Asian / Pacific Islander	0
Non-Hispanic White	383
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	166
85 and over	108
Less than 65	49
65 to 74	239

Average of Total of Conditions of Medicare patients treated by Dr. Mark Blackwelder, MD From 2013 - 2023

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

Hypertension	73
High Cholesterol	60
Stroke	10
Ischemic Heart Disease	38
Depression	19
Chronic Kidney Disease	43
Asthma	6
Osteoporosis	11
Heart Failure	31
Chronic Obstructive Pulmonary Disease	19
Diabetes	49
Atrial Fibrillation	18
Cancer	12
Dementia	25

Education & Training

Dr. Mark Blackwelder, MD graduated from Louisiana State University School of Medicine in Shreveport in 1985. He has a state license in Louisiana.

Medical School: Louisiana State University School of Medicine in Shreveport (1985)

Licensed In: Louisiana

Affiliations & Hospitals

Dr. Mark Blackwelder, MD is associated with these hospitals and organizations:

Northern Louisiana Medical Center

GREEN CLINIC LLC

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$2,096 FARXIGA $1,810	BYDUREON $148	BYDUREON WEEKLY $43	BREZTRI $33	LOKELMA $29	Other $33
Novo Nordisk Inc	$1,863 Ozempic $529	Victoza $414	Tresiba $292	RYBELSUS $241	Saxenda $240	Other $147
Amgen Inc.	$788 Prolia $430	EVENITY $125	Repatha $120	Corlanor $15	$99
Lilly USA, LLC	$632 JARDIANCE $193	MOUNJARO $168	TRULICITY $105	ZEPBOUND $36	BASAGLAR $17	Other $113
Boehringer Ingelheim Pharmaceuticals, Inc.	$419 JARDIANCE $155	TRADJENTA $83	Spiriva $54	Pradaxa $33	SYNJARDY XR $33	Other $62
Other	$3,181 Kerendia $338	Contrave $147	ORBACTIV $125	ENTRESTO $109	TOUJEO $105	Other $2,357

**Types of Payments**
Food and Beverage	$8,863
Education	$117

Biography

Dr. Mark Blackwelder attended medical school at Louisiana State University School of Medicine in Shreveport. He is professionally affiliated with Northern Louisiana Medical Center.