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Dr. Marshall Scott Irby, MD

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Specializes in: Adult Pulmonology

2810 Armand Street
Monroe, LA 71201

(318) 322-5864

Dr. Marshall Scott Irby, MD is a pulmonologist in Monroe, LA specializing in adult pulmonology.

Office Locations

2810 Armand Street
Monroe, LA 71201

(318) 322-5864

(318) 322-5992

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Noteworthy Medicare Patient Procedures Performed by Dr. Marshall Scott Irby, MD in 2023

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

Top 10%

By Volume:

pulmonary function test

In 2023, Dr. Marshall Scott Irby, MD performed more pulmonary function test (PFT) procedures for Medicare patients than 90% of providers in related specialties within Louisiana.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2012 were pulmonary testing, X-rays, thoracic (chest) imaging and sleep study.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	184
doctor visit	1324
preventive care	166
pulmonary testing	632
sleep study	433
thoracic (chest) imaging	544
vaccines	166
X-rays	544

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2013 were pulmonary testing, sleep study, X-rays and thoracic (chest) imaging.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	211
doctor visit	1268
preventive care	85
pulmonary testing	710
sleep study	531
thoracic (chest) imaging	448
vaccines	85
X-rays	448

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	395
Female	440

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

**Age**
From 65 to 74	393
From 75 to 84	237
85 and over	48
Less than 65	157

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2013

Hypertension	75
High Cholesterol	59
Stroke	6
Ischemic Heart Disease	58
Depression	21
Chronic Kidney Disease	25
Asthma	21
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	32
Chronic Obstructive Pulmonary Disease	46
Diabetes	39
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2014 were sleep study, pulmonary testing, X-rays and thoracic (chest) imaging.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	290
doctor visit	1212
preventive care	134
pulmonary testing	547
sleep study	669
thoracic (chest) imaging	361
vaccines	134
X-rays	361

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	406
Female	482

**Ethnicity**
Non-Hispanic White	705
Black	172
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	398
From 75 to 84	242
85 and over	67
Less than 65	181

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2014

Hypertension	75
High Cholesterol	60
Stroke	6
Ischemic Heart Disease	55
Depression	21
Chronic Kidney Disease	24
Asthma	18
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	29
Chronic Obstructive Pulmonary Disease	43
Diabetes	39
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2015 were sleep study, pulmonary testing, airway management and X-rays.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	278
doctor visit	1173
preventive care	93
pulmonary testing	472
sleep study	674
thoracic (chest) imaging	243
vaccines	93
X-rays	243

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	840
Female	976

**Ethnicity**
Non-Hispanic White	1430
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	806
From 75 to 84	540
85 and over	108
Less than 65	362

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2015

Hypertension	75
High Cholesterol	62
Stroke	6
Ischemic Heart Disease	54
Depression	21
Chronic Kidney Disease	29
Asthma	33
Osteoperosis	7
Atrial Fibrilation	16
Heart Failure	29
Chronic Obstructive Pulmonary Disease	42
Diabetes	37
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2016 were sleep study, pulmonary testing, airway management and X-rays.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	322
doctor visit	1210
pulmonary testing	576
sleep study	683
thoracic (chest) imaging	228
X-rays	228

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	437
Female	501

**Ethnicity**
Non-Hispanic White	724
Black	200
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	456
From 75 to 84	253
85 and over	51
Less than 65	178

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2016

Hypertension	75
High Cholesterol	62
Stroke	7
Ischemic Heart Disease	54
Depression	20
Chronic Kidney Disease	35
Asthma	45
Osteoperosis	7
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	40
Diabetes	40
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2017 were pulmonary testing, sleep study, airway management and X-rays.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	313
doctor visit	1347
pulmonary testing	647
sleep study	602
thoracic (chest) imaging	207
X-rays	207

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	467
Female	505

**Ethnicity**
Non-Hispanic White	771
Black	188
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	457
From 75 to 84	287
85 and over	61
Less than 65	167

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2017

Hypertension	75
High Cholesterol	57
Stroke	6
Ischemic Heart Disease	55
Depression	19
Chronic Kidney Disease	35
Asthma	17
Osteoperosis	7
Atrial Fibrilation	17
Heart Failure	28
Chronic Obstructive Pulmonary Disease	43
Diabetes	37
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2018 were sleep study, airway management and pulmonary testing.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	330
doctor visit	1098
pulmonary testing	135
sleep study	644

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	428
Female	511

**Ethnicity**
Non-Hispanic White	736
Black	179
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	429
From 75 to 84	271
85 and over	68
Less than 65	171

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2018

Hypertension	75
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	55
Depression	20
Chronic Kidney Disease	37
Asthma	14
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	38
Diabetes	39
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2019 were sleep study, pulmonary testing and airway management.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	324
doctor visit	1194
pulmonary testing	598
sleep study	682

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	456
Female	502

**Ethnicity**
Non-Hispanic White	769
Black	166
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	466
From 75 to 84	285
85 and over	65
Less than 65	142

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2019

Hypertension	75
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	56
Depression	18
Chronic Kidney Disease	37
Asthma	16
Osteoperosis	7
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	36
Diabetes	40
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2020 were sleep study, pulmonary testing and airway management.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	199
doctor visit	701
pulmonary testing	334
sleep study	436

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	310
Female	333

**Ethnicity**
Non-Hispanic White	541
Black	90
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	313
From 75 to 84	202
85 and over	40
Less than 65	88

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2020

Hypertension	75
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	58
Depression	19
Chronic Kidney Disease	38
Asthma	12
Osteoperosis	7
Atrial Fibrilation	19
Heart Failure	28
Chronic Obstructive Pulmonary Disease	32
Diabetes	38
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2021 were sleep study, pulmonary testing and airway management.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	172
doctor visit	891
pulmonary testing	408
sleep study	428

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	309
Female	348

**Ethnicity**
Non-Hispanic White	547
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	314
From 75 to 84	210
85 and over	43
Less than 65	90

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2021

Hypertension	75
High Cholesterol	65
Stroke	7
Ischemic Heart Disease	56
Depression	17
Chronic Kidney Disease	37
Asthma	14
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	28
Chronic Obstructive Pulmonary Disease	37
Diabetes	36
Dementia	10
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA during 2022 were pulmonary testing, sleep study and airway management.

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

airway management	105
doctor visit	982
pulmonary testing	444
sleep study	237

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	303
Female	300

**Ethnicity**
Non-Hispanic White	516
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	294
From 75 to 84	208
85 and over	45
Less than 65	56

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	49
Depression	19
Chronic Kidney Disease	24
Asthma	22
Osteoperosis	14
Atrial Fibrilation	28
Heart Failure	23
Chronic Obstructive Pulmonary Disease	44
Diabetes	38
Dementia	6
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Marshall Scott Irby, MD for Medicare patients.

The highest averages for the top procedures that Dr. Marshall Scott Irby, MD treated as a pulmonologist in Monroe, LA were sleep study, pulmonary testing, X-rays and thoracic (chest) imaging.

airway management	248
doctor visit	1127
preventive care	119
pulmonary testing	500
sleep study	547
thoracic (chest) imaging	338
vaccines	119
X-rays	338

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Marshall Scott Irby, MD.

**Gender**
Male	395
Female	445

**Ethnicity**
Black / African American	90
Asian / Pacific Islander	0
Non-Hispanic White	674
Native American / Alaskan Native	0
Hispanic	0
Other	1

**Age**
75 to 84	248
85 and over	54
Less than 65	144
65 to 74	393

Average of Total of Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Marshall Scott Irby, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic obstructive pulmonary disease.

Hypertension	68
High Cholesterol	57
Stroke	6
Ischemic Heart Disease	50
Depression	17
Chronic Kidney Disease	29
Asthma	19
Osteoporosis	7
Heart Failure	25
Chronic Obstructive Pulmonary Disease	36
Diabetes	34
Atrial Fibrillation	15
Dementia	8
Cancer	10

Education & Training

He has a state license in Louisiana.

Licensed In: Louisiana

Ratings & Reviews

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General Payments

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

**Payments by Company**
FOREST PHARMACEUTICALS, INC.	$5,115 DALIRESP $2,792	TUDORZA $2,321	BYSTOLIC $1
GlaxoSmithKline, LLC.	$2,385 TRELEGY ELLIPTA $1,040	ANORO $577	BREO $388	INCRUSE $209	ANORO ELLIPTA $90	Other $83
AstraZeneca Pharmaceuticals LP	$1,409 FASENRA $717	SYMBICORT $226	BEVESPI AEROSPHERE $121	TEZSPIRE $115	BREZTRI $109	Other $122
Boehringer Ingelheim Pharmaceuticals, Inc.	$1,159 SPIRIVA RESPIMAT $645	COMBIVENT RESPIMAT $200	STIOLTO $96	STRIVERDI RESPIMAT $73	OFEV $38	Other $105
Mylan Specialty L.P.	$975 Perforomist $564	Yupelri $362	$50
Other	$2,793 Prolastin-C $617	ACTHAR $519	Brovana $329	The Vest System Model 105 Home Care $224	Prolastin-C Liquid $202	Other $902

**Types of Payments**
Food and Beverage	$8,912
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$4,700
Education	$214
Travel and Lodging	$10

Biography

Dr. Marshall Irby sees patients in Monroe, LA. His medical specialty is adult pulmonology. Dr. Irby has obtained a license to practice in Louisiana.

Select Year:

Dr. Marshall Scott Irby, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Marshall Scott Irby, MD in 2023

By Volume:

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. Marshall Scott Irby, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Scott Irby, 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. Marshall Scott Irby, MD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

Other Providers in Monroe, LA