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Prof. Claudius Mahr, DO

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Specializes in: Advanced Heart Failure and Transplant Cardiology and Adult Cardiology

Midwestern University, Chicago College of Osteopathic Medicine

Professional interests include: cardiomyopathy, left ventricular assist device (LVAD), arrhythmias (irregular heartbeats), and more.

11970 North Central Expressway Suite 210
Dallas, TX 75243

(972) 940-9500

Prof. Claudius Mahr, DO is a cardiologist in Dallas, TX specializing in advanced heart failure and transplant cardiology and adult cardiology. He graduated from Midwestern University, Chicago College of Osteopathic Medicine. Prof. Claudius Mahr, DO is affiliated with Medical City Healthcare, CARDIOLOGY SPECIALISTS OF NORTH TEXAS PLLC and Medical City Heart Hospital Medical City Dallas Hospital Medical City Plano Medical City Arlington.

Office Locations

Medical City Heart Hospital Medical City Dallas Hospital Medical City Plano Medical City Arlington

11970 North Central Expressway Suite 210
Dallas, TX 75243

(972) 940-9500

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Some issues Prof. Claudius Mahr, DO can help you with:

Cardiac Catheterization

Cardiac catheterization is a procedure done to check on the health of the heart. A tiny, flexible tube called a catheter is inserted into a blood vessel through a very small opening, usually in the groin, and threaded through the blood vessel up to the heart. Once the catheter is in place, it can diagnose problems in the heart and perform certain corrective procedures.

A coronary catheter can be used to:

Take blood samples
Inject dye for an angiogram
Check for valve defects
Measure oxygen and pressure levels within the heart chambers
Take a biopsy
Perform a percutaneous coronary intervention, or procedure to clear blocked arteries
Widen narrowed valve openings

Because all of this can be accomplished without the need for open surgery, cardiac catheterization has become a popular option.

Heart Attack

A heart attack is a serious medical event that happens when the blood supplying oxygen to the heart is cut off, usually because of a blockage in an artery. This results in damage or death of part of the heart muscle. The heart can heal, but like any part of the body that was injured it leaves a scar. This scar tissue does not contract effectively, so the ability of the heart to pump is lowered after a heart attack.

A heart attack, sometimes called a myocardial infarction, can happen without warning. However there are certain factors that raise the risk of heart attack. Some of these are:

Age
Gender (most heart attack sufferers are male)
A family history of heart attacks
Smoking
Obesity
High cholesterol
High blood pressure
Diabetes
Unhealthy lifestyle choices (lack of exercise, poor diet, too much alcohol or stress)

Heart attacks typically feel like pain or pressure in the chest that can radiate out to the back, arm, or jaw. Some other symptoms can include fatigue or weakness, shortness of breath, sweating, and nausea.

Treatment aims to increase blood flow to the heart muscle by opening up blocked blood vessels. Medications are sometimes used to dissolve clots in the arteries. Aspirin and other medications such as Plavix can thin the blood and make clots less likely to form. Dilators can widen blood vessels to make room for more blood to flow. Doctors can also use a procedure called catheterization to look at the blood vessels around the heart directly, place stents, or widen vessels using angioplasty. In extreme cases bypass surgery can be used to help blood flow better. After recovery, it is important to lead a healthy lifestyle and take any prescribed medications in order to protect the heart.

Heart Problems

The heart is one of the most important organs in the body. This smooth muscle expands and contracts rhythmically an entire lifetime, pumping blood to the lungs and then to every other cell in the body. When heart problems occur, it becomes difficult for the body to get the nutrients and oxygen it needs via the blood. So while there are a variety of illnesses and disorders that affect the heart, most of them cause weakness, exhaustion and shortness of breath. The most common heart conditions include heart disease, angina, arrhythmia, and valve disorders.

Heart disease is the leading cause of death in the United States for both men and women. This includes coronary artery disease, heart attacks, congestive heart failure, and congenital heart disease. Some conditions, such as genetics, cannot be controlled. But there are many other things one can do to lower their risk for heart disease. Controlling high blood pressure and cholesterol levels, reducing or stopping smoking, exercising more and losing weight if needed, and eating a diet low in sodium can all protect the heart.

Angina is a squeezing type of chest pain that happens when the muscles around the heart don't get enough oxygen. It can be regular or infrequent. Usually, angina is caused by coronary heart disease. However, not all chest pain is angina. Chest pain can also be caused by a lung infection or panic attack, for example, so it is important to have any sudden pain checked.

Arrhythmia is the word for when the heart beats too fast, too slow, or irregularly with skipped beats. It can feel frightening, and depending on the type it can be dangerous, but in most cases arrhythmia is not serious and can be treated. It is very common, especially in older adults.

Heart valve problems can happen in any one of the the heart's four valves that keep blood flowing where it needs to go. Babies can be born with problems in their heart valves, or valves can be damaged by infections. The valves can stiffen and become less mobile, or they can stop closing properly and 'leak' when the heart beats. Valve problems can usually be repaired surgically.

In The News

“By Thursday, Holland was progressing in his recovery, according to Dr. Claudius Mahr, his cardiologist at the UW Medicine Heart Institute.”—"An Alaska man receives a heart transplant after missing his first opportunity due to severe weather", CNN, April 2023

“"Patients have to reliably be able to get to us when there is a donor available," said Dr. Claudius Mahr, Holland's cardiologist with University of Washington Medical Center.”—"A state of waiting", Anchorage Daily News, March 2023

“"He got a great heart and he's doing as would be expected this close after surgery," said Dr. Claudius Mahr, Holland's cardiologist.”—"Alaska man who missed his transplant surgery in December has received a new heart", Anchorage Daily News, January 2023

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2013 were hospital care and inpatient care.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

doctor visit	212
hospital care	243
inpatient care	243

2013 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	49
Female	24

**Ethnicity**
Non-Hispanic White	43
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	29
From 75 to 84	0
85 and over	0
Less than 65	33

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2013

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2013 were heart failure, high cholesterol, hypertension and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	41
Chronic Kidney Disease	74
Asthma	16
Osteoperosis	0
Atrial Fibrilation	36
Heart Failure	75
Chronic Obstructive Pulmonary Disease	23
Diabetes	55
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2014 were hospital care and inpatient care.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

doctor visit	57
hospital care	245
inpatient care	245

2014 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	65
Female	27

**Ethnicity**
Non-Hispanic White	67
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	39
From 75 to 84	0
85 and over	0
Less than 65	38

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2014

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2014 were chronic kidney disease, heart failure, hypertension and ischemic heart disease.

Hypertension	75
High Cholesterol	65
Stroke	17
Ischemic Heart Disease	75
Depression	39
Chronic Kidney Disease	75
Asthma	14
Osteoperosis	0
Atrial Fibrilation	35
Heart Failure	75
Chronic Obstructive Pulmonary Disease	14
Diabetes	52
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2015 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

cardiac procedures	30
catheterization	30
diagnostic procedures	59
doctor visit	39
hospital care	462
inpatient care	462
minimally invasive procedures	30

2015 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	184
Female	50

**Ethnicity**
Non-Hispanic White	174
Black	34
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	106
From 75 to 84	28
85 and over	0
Less than 65	100

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2015

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2015 were chronic kidney disease, heart failure, hypertension and ischemic heart disease.

Hypertension	75
High Cholesterol	68
Stroke	19
Ischemic Heart Disease	75
Depression	32
Chronic Kidney Disease	75
Asthma	16
Osteoperosis	0
Atrial Fibrilation	36
Heart Failure	75
Chronic Obstructive Pulmonary Disease	19
Diabetes	52
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2016 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

cardiac procedures	28
catheterization	28
diagnostic procedures	56
doctor visit	82
hospital care	320
inpatient care	320
minimally invasive procedures	28

2016 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	105
Female	35

**Ethnicity**
Non-Hispanic White	106
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	58
From 75 to 84	0
85 and over	0
Less than 65	49

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2016

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2016 were chronic kidney disease, heart failure, hypertension and ischemic heart disease.

Hypertension	75
High Cholesterol	66
Stroke	16
Ischemic Heart Disease	75
Depression	38
Chronic Kidney Disease	75
Asthma	28
Osteoperosis	0
Atrial Fibrilation	40
Heart Failure	75
Chronic Obstructive Pulmonary Disease	27
Diabetes	49
Dementia	19
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2017 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

cardiac procedures	32
catheterization	32
diagnostic procedures	61
doctor visit	106
hospital care	295
inpatient care	295
minimally invasive procedures	32

2017 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	99
Female	37

**Ethnicity**
Non-Hispanic White	104
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	58
From 75 to 84	0
85 and over	0
Less than 65	52

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2017

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2017 were chronic kidney disease, heart failure, hypertension and ischemic heart disease.

Hypertension	75
High Cholesterol	63
Stroke	18
Ischemic Heart Disease	75
Depression	31
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	38
Heart Failure	75
Chronic Obstructive Pulmonary Disease	24
Diabetes	45
Dementia	15
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2018 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

cardiac procedures	35
catheterization	35
diagnostic procedures	70
doctor visit	317
hospital care	346
inpatient care	346
minimally invasive procedures	35

2018 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	130
Female	40

**Ethnicity**
Non-Hispanic White	127
Black	14
Hispanic	0
Asian	15
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	0
85 and over	0
Less than 65	66

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2018

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2018 were chronic kidney disease, heart failure, hypertension and ischemic heart disease.

Hypertension	75
High Cholesterol	65
Stroke	16
Ischemic Heart Disease	75
Depression	31
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	6
Atrial Fibrilation	42
Heart Failure	75
Chronic Obstructive Pulmonary Disease	24
Diabetes	54
Dementia	15
Cancer	7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2019 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

cardiac procedures	29
catheterization	29
diagnostic procedures	60
doctor visit	356
hospital care	261
inpatient care	261
minimally invasive procedures	29

2019 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	118
Female	44

**Ethnicity**
Non-Hispanic White	123
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	0
85 and over	0
Less than 65	62

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2019

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2019 were heart failure, hypertension, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	60
Stroke	12
Ischemic Heart Disease	75
Depression	25
Chronic Kidney Disease	73
Asthma	8
Osteoperosis	0
Atrial Fibrilation	35
Heart Failure	75
Chronic Obstructive Pulmonary Disease	17
Diabetes	46
Dementia	12
Cancer	7

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2020 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

cardiac procedures	20
catheterization	20
diagnostic procedures	40
doctor visit	306
hospital care	177
inpatient care	177
minimally invasive procedures	20

2020 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	142
Female	93

**Ethnicity**
Non-Hispanic White	188
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	44
85 and over	13
Less than 65	58

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2020

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2020 were hypertension, heart failure, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	66
Stroke	9
Ischemic Heart Disease	67
Depression	27
Chronic Kidney Disease	66
Asthma	8
Osteoperosis	6
Atrial Fibrilation	32
Heart Failure	73
Chronic Obstructive Pulmonary Disease	15
Diabetes	42
Dementia	14
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2021 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

cardiac procedures	28
catheterization	28
diagnostic procedures	56
doctor visit	460
hospital care	144
inpatient care	144
minimally invasive procedures	28

2021 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	240
Female	163

**Ethnicity**
Non-Hispanic White	333
Black	18
Hispanic	0
Asian	17
Other	17
Native American	0

**Age**
From 65 to 74	191
From 75 to 84	99
85 and over	31
Less than 65	82

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2021

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2021 were hypertension, high cholesterol, ischemic heart disease and heart failure.

Hypertension	73
High Cholesterol	66
Stroke	10
Ischemic Heart Disease	63
Depression	25
Chronic Kidney Disease	54
Asthma	8
Osteoperosis	10
Atrial Fibrilation	33
Heart Failure	61
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	10
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2022 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

cardiac procedures	28
catheterization	28
diagnostic procedures	56
doctor visit	439
hospital care	162
inpatient care	162
minimally invasive procedures	28

2022 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	296
Female	212

**Ethnicity**
Non-Hispanic White	419
Black	19
Hispanic	0
Asian	25
Other	20
Native American	0

**Age**
From 65 to 74	226
From 75 to 84	150
85 and over	48
Less than 65	84

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2022

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2022 were high cholesterol, hypertension, heart failure and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	52
Depression	25
Chronic Kidney Disease	41
Asthma	14
Osteoperosis	16
Atrial Fibrilation	48
Heart Failure	64
Chronic Obstructive Pulmonary Disease	17
Diabetes	32
Dementia	9
Cancer	20

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX during 2023 were hospital care and inpatient care.

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

doctor visit	148
hospital care	156
inpatient care	156

2023 Medicare Patient Data

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	202
Female	144

**Ethnicity**
Non-Hispanic White	276
Black	0
Hispanic	12
Asian	27
Other	18
Native American	0

**Age**
From 65 to 74	157
From 75 to 84	100
85 and over	33
Less than 65	56

Conditions of Medicare patients treated by Prof. Claudius Mahr, DO in 2023

The most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated during 2023 were high cholesterol, hypertension, heart failure and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	55
Depression	28
Chronic Kidney Disease	46
Asthma	13
Osteoperosis	20
Atrial Fibrilation	50
Heart Failure	62
Chronic Obstructive Pulmonary Disease	18
Diabetes	40
Dementia	11
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Prof. Claudius Mahr, DO for Medicare patients.

The highest averages for the top procedures that Prof. Claudius Mahr, DO treated as a cardiologist in Dallas, TX were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

cardiac procedures	28
catheterization	28
diagnostic procedures	57
doctor visit	229
hospital care	255
inpatient care	255
minimally invasive procedures	28

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Prof. Claudius Mahr, DO.

**Gender**
Male	148
Female	79

**Ethnicity**
Black / African American	11
Asian / Pacific Islander	7
Non-Hispanic White	178
Hispanic	2
Native American / Alaskan Native	0
Other	5

**Age**
85 and over	11
75 to 84	38
Less than 65	61
65 to 74	102

Average of Total of Conditions of Medicare patients treated by Prof. Claudius Mahr, DO From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Prof. Claudius Mahr, DO treated were hypertension, heart failure, ischemic heart disease and high cholesterol.

Hypertension	74
High Cholesterol	67
Stroke	13
Ischemic Heart Disease	69
Depression	31
Chronic Kidney Disease	66
Asthma	12
Osteoporosis	5
Heart Failure	71
Chronic Obstructive Pulmonary Disease	19
Diabetes	45
Atrial Fibrillation	38
Cancer	8
Dementia	9

Education & Training

Prof. Claudius Mahr, DO graduated from Midwestern University, Chicago College of Osteopathic Medicine. He completed residency at Northwestern University Affiliated Hospitals. He has a state license in Washington.

Medical School: Midwestern University, Chicago College of Osteopathic Medicine

Residency: Northwestern University Affiliated Hospitals

Licensed In: Washington

Affiliations & Hospitals

Prof. Claudius Mahr, DO is associated with these hospitals and organizations:

Medical City Healthcare

CARDIOLOGY SPECIALISTS OF NORTH TEXAS PLLC

Medical City Heart Hospital Medical City Dallas Hospital Medical City Plano Medical City Arlington

Ratings & Reviews

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General Payments

These charts describe general payments received by Prof. Claudius Mahr, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
ABIOMED	$54,004 Impella $54,004
Medtronic Vascular, Inc.	$52,600 HeartWare HVAD $47,296	$5,304
HeartWare, Inc.	$37,838 HeartWare HVAD $19,524	HeartWare Ventricular Assist System $18,314
Medtronic, Inc.	$10,435 HeartWare HVAD $7,685	$2,750
Abbott Laboratories	$4,512 HeartMate 3 Left Ventricular Dev $1,624	THORATEC HEARTMATE 3 LVAS IMPLANT KIT $812	HeartMate Touch $701	HeartMate 3 Left Ventricular Assist Device $473	Circulatory Support $462	Other $441
Other	$4,642 HeartMate III R and D $2,614	MCS Multiple Products General $435	HeartMate II $362	HeartMate PHP $173	LUNGguard $171	Other $888

**Types of Payments**
Travel and Lodging	$97,799
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$24,042
Consulting Fee	$22,664
Food and Beverage	$18,778
Entertainment	$749

Research Payments

Prof. Claudius Mahr, DO has received 58 research payments totaling $172,736.

Biography

Dr. Claudius Mahr's medical specialty is adult cardiology and advanced heart failure and transplant cardiology. His areas of expertise include the following: arrhythmias (irregular heartbeats), advanced heart failure, and second opinions. After completing medical school at Midwestern University, Chicago College of Osteopathic Medicine, he performed his residency at a hospital affiliated with Northwestern University. Dr. Mahr (or staff) is conversant in Spanish and German. He is affiliated with Medical City Healthcare.