In 2023, among providers in related specialties within Montana, Dr. John J. Mazur, MD performed more flu shot, and pulse oximetry procedures for Medicare patients than 95% of them and he also had a list price for oximetry, oxygen saturation test, and pulse oximetry 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.

Top 10%

By Volume:

pulmonary testing

In 2023, Dr. John J. Mazur, MD performed more pulmonary testing procedures for Medicare patients than 90% of providers in related specialties within Montana.

Top 25%

By Volume:

bronchoscopy

In 2012, Dr. John J. Mazur, MD performed more bronchoscopy procedures for Medicare patients than 75% of providers in related specialties within Montana.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2012 were pulmonary testing, lab tests, hospital care and inpatient care.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

aspiration	13
blood draw	167
bronchoscopy	56
diagnostic procedures	28
doctor visit	692
hospital care	257
inpatient care	257
lab tests	284
minimally invasive procedures	28
minor procedures	13
preventive care	42
pulmonary testing	461
vaccines	42

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2013 were pulmonary testing, lab tests, blood draw and hospital care.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

blood draw	226
bronchoscopy	60
diagnostic procedures	15
doctor visit	694
hospital care	187
inpatient care	187
lab tests	457
minimally invasive procedures	31
preventive care	36
pulmonary testing	475
vaccines	36

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	206
Female	223

**Ethnicity**
Non-Hispanic White	388
Black	0
Hispanic	0
Asian	0
Other	0
Native American	28

**Age**
From 65 to 74	184
From 75 to 84	151
85 and over	50
Less than 65	44

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2013

Hypertension	64
High Cholesterol	43
Stroke	7
Ischemic Heart Disease	40
Depression	28
Chronic Kidney Disease	35
Asthma	20
Osteoperosis	11
Atrial Fibrilation	18
Heart Failure	31
Chronic Obstructive Pulmonary Disease	58
Diabetes	37
Dementia	8
Cancer	17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2014 were pulmonary testing, hospital care, inpatient care and bronchoscopy.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

bronchoscopy	33
catheterization	13
diagnostic procedures	13
doctor visit	767
hospital care	101
inpatient care	101
minimally invasive procedures	13
preventive care	32
pulmonary testing	571
vaccines	32

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	211
Female	250

**Ethnicity**
Non-Hispanic White	415
Black	0
Hispanic	0
Asian	0
Other	0
Native American	28

**Age**
From 65 to 74	190
From 75 to 84	163
85 and over	61
Less than 65	47

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2014

Hypertension	71
High Cholesterol	51
Stroke	6
Ischemic Heart Disease	43
Depression	27
Chronic Kidney Disease	33
Asthma	24
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	31
Chronic Obstructive Pulmonary Disease	60
Diabetes	33
Dementia	10
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2015 were pulmonary testing, preventive care, vaccines and hospital care.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

bronchoscopy	34
catheterization	13
diagnostic procedures	12
doctor visit	791
hospital care	146
inpatient care	146
minimally invasive procedures	12
preventive care	230
pulmonary testing	580
vaccines	230

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	500
Female	496

**Ethnicity**
Non-Hispanic White	876
Black	0
Hispanic	0
Asian	0
Other	0
Native American	84

**Age**
From 65 to 74	424
From 75 to 84	326
85 and over	132
Less than 65	114

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2015

Hypertension	67
High Cholesterol	47
Stroke	8
Ischemic Heart Disease	47
Depression	27
Chronic Kidney Disease	39
Asthma	44
Osteoperosis	9
Atrial Fibrilation	19
Heart Failure	28
Chronic Obstructive Pulmonary Disease	59
Diabetes	34
Dementia	9
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2016 were pulmonary testing, hospital care, inpatient care and preventive care.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

bronchoscopy	42
diagnostic procedures	18
doctor visit	737
hospital care	127
inpatient care	127
minimally invasive procedures	31
preventive care	57
pulmonary testing	483
vaccines	57

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	227
Female	246

**Ethnicity**
Non-Hispanic White	424
Black	0
Hispanic	0
Asian	0
Other	0
Native American	32

**Age**
From 65 to 74	201
From 75 to 84	176
85 and over	54
Less than 65	42

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2016

Hypertension	69
High Cholesterol	50
Stroke	5
Ischemic Heart Disease	44
Depression	27
Chronic Kidney Disease	32
Asthma	64
Osteoperosis	7
Atrial Fibrilation	17
Heart Failure	24
Chronic Obstructive Pulmonary Disease	60
Diabetes	30
Dementia	11
Cancer	18

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2017 were pulmonary testing, preventive care, vaccines and hospital care.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

aspiration	14
bronchoscopy	82
diagnostic procedures	33
doctor visit	876
hospital care	84
inpatient care	84
minimally invasive procedures	51
minor procedures	14
preventive care	97
pulmonary testing	695
vaccines	97

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	225
Female	254

**Ethnicity**
Non-Hispanic White	442
Black	0
Hispanic	0
Asian	0
Other	0
Native American	23

**Age**
From 65 to 74	206
From 75 to 84	165
85 and over	70
Less than 65	38

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2017

Hypertension	71
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	50
Depression	26
Chronic Kidney Disease	32
Asthma	29
Osteoperosis	11
Atrial Fibrilation	20
Heart Failure	26
Chronic Obstructive Pulmonary Disease	61
Diabetes	30
Dementia	10
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2018 were pulmonary testing, bronchoscopy, preventive care and vaccines.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

aspiration	15
breathing treatment	15
bronchoscopy	81
diagnostic procedures	33
doctor visit	981
hospital care	53
inpatient care	53
minimally invasive procedures	51
minor procedures	15
preventive care	78
pulmonary testing	632
vaccines	78

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	244
Female	255

**Ethnicity**
Non-Hispanic White	463
Black	0
Hispanic	0
Asian	0
Other	0
Native American	22

**Age**
From 65 to 74	219
From 75 to 84	179
85 and over	58
Less than 65	43

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2018

Hypertension	68
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	57
Depression	28
Chronic Kidney Disease	31
Asthma	28
Osteoperosis	14
Atrial Fibrilation	15
Heart Failure	28
Chronic Obstructive Pulmonary Disease	56
Diabetes	29
Dementia	9
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2019 were pulmonary testing, bronchoscopy, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

aspiration	27
bronchoscopy	97
diagnostic procedures	67
doctor visit	948
hospital care	57
inpatient care	57
minimally invasive procedures	67
minor procedures	27
preventive care	13
pulmonary testing	499
vaccines	13

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	264
Female	281

**Ethnicity**
Non-Hispanic White	498
Black	0
Hispanic	0
Asian	0
Other	11
Native American	25

**Age**
From 65 to 74	215
From 75 to 84	207
85 and over	72
Less than 65	51

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2019

Hypertension	68
High Cholesterol	55
Stroke	5
Ischemic Heart Disease	63
Depression	30
Chronic Kidney Disease	35
Asthma	30
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	31
Chronic Obstructive Pulmonary Disease	60
Diabetes	31
Dementia	9
Cancer	18

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2020 were pulmonary testing and breathing treatment.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

breathing treatment	20
doctor visit	840
pulmonary testing	406

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	232
Female	229

**Ethnicity**
Non-Hispanic White	425
Black	0
Hispanic	0
Asian	0
Other	0
Native American	19

**Age**
From 65 to 74	195
From 75 to 84	178
85 and over	60
Less than 65	28

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2020

Hypertension	68
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	59
Depression	24
Chronic Kidney Disease	35
Asthma	34
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	26
Chronic Obstructive Pulmonary Disease	55
Diabetes	29
Dementia	8
Cancer	17

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2021 were pulmonary testing, bronchoscopy, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

aspiration	11
bronchoscopy	37
diagnostic procedures	26
doctor visit	931
minimally invasive procedures	26
minor procedures	11
pulmonary testing	560

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	237
Female	276

**Ethnicity**
Non-Hispanic White	491
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	219
From 75 to 84	204
85 and over	65
Less than 65	25

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2021

Hypertension	69
High Cholesterol	59
Stroke	3
Ischemic Heart Disease	50
Depression	25
Chronic Kidney Disease	33
Asthma	33
Osteoperosis	15
Atrial Fibrilation	19
Heart Failure	24
Chronic Obstructive Pulmonary Disease	56
Diabetes	29
Dementia	8
Cancer	20

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT during 2022 were pulmonary testing, bronchoscopy, minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

aspiration	14
bronchoscopy	64
diagnostic procedures	41
doctor visit	912
minimally invasive procedures	41
minor procedures	14
pulmonary testing	457

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	235
Female	278

**Ethnicity**
Non-Hispanic White	481
Black	0
Hispanic	0
Asian	0
Other	0
Native American	19

**Age**
From 65 to 74	212
From 75 to 84	207
85 and over	62
Less than 65	32

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2022

Hypertension	75
High Cholesterol	74
Stroke	6
Ischemic Heart Disease	42
Depression	22
Chronic Kidney Disease	22
Asthma	37
Osteoperosis	16
Atrial Fibrilation	24
Heart Failure	19
Chronic Obstructive Pulmonary Disease	61
Diabetes	29
Dementia	4
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John J. Mazur, MD for Medicare patients.

The highest averages for the top procedures that Dr. John J. Mazur, MD treated as a pulmonologist in Great Falls, MT were pulmonary testing, lab tests, blood draw and inpatient care.

aspiration	15
blood draw	196
bronchoscopy	58
catheterization	13
diagnostic procedures	28
doctor visit	833
hospital care	126
inpatient care	126
lab tests	370
minimally invasive procedures	35
minor procedures	15
preventive care	73
pulmonary testing	529
vaccines	73

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John J. Mazur, MD.

**Gender**
Male	234
Female	253

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	445
Native American / Alaskan Native	25
Hispanic	0
Other	1

**Age**
75 to 84	177
85 and over	62
Less than 65	42
65 to 74	205

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

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

Hypertension	62
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	45
Depression	24
Chronic Kidney Disease	29
Asthma	31
Osteoporosis	10
Heart Failure	24
Chronic Obstructive Pulmonary Disease	53
Diabetes	28
Atrial Fibrillation	16
Dementia	7
Cancer	15

Education & Training

He has a state license in Montana.

Licensed In: Montana

Ratings & Reviews

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General Payments

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

**Payments by Company**
Pulmonx Corporation	$3,064 ZEPHYR DELIVERY CATHETER $2,763	PULMONX CHARTIS TABLET CONSOLE $160	Zephyr Endobronchial Valve $141
AstraZeneca Pharmaceuticals LP	$1,988 FASENRA $584	SYMBICORT $493	BRILINTA $300	BREZTRI $225	CRESTOR $214	Other $171
Olympus Corporation of the Americas	$1,192 Endoscopy Products $1,192
Actelion Pharmaceuticals US, Inc.	$1,186 OPSUMIT $389	UPTRAVI $312	OPSUMIT MACITENTAN $266	VENTAVIS ILOPROST $74	VELETRI EPOPROSTENOL $16	Other $128
GlaxoSmithKline, LLC.	$975 TRELEGY ELLIPTA $452	NUCALA $154	BREO $124	ANORO $114	ANORO ELLIPTA $86	Other $45
Other	$4,817 ACTHAR $505	XOLAIR $399	ORENITRAM $329	XARELTO $312	OFEV $302	Other $2,969

**Types of Payments**
Food and Beverage	$9,152
Travel and Lodging	$3,714
Education	$355

Research Payments

Dr. John J. Mazur, MD has received 2 research payments totaling $1,784.

Biography

Dr. John Mazur sees patients in Great Falls, MT. His medical specialty is adult pulmonology. He studied medicine at the University of Michigan Medical School.

Select Year:

Dr. John J. Mazur, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. John J. Mazur, MD in 2023

By Volume:

By Affordability:

By Volume:

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. John J. Mazur, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John J. Mazur, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John J. Mazur, 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 J. Mazur, MD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Research Payments

Biography

Other Providers in Great Falls, MT