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Dr. Katy Lease Lonergan II, MD

Accepting New Patients

(No ratings)

Specializes in: Hospital Medicine (Hospitalist) and Adult Cardiology
Johns Hopkins University School of Medicine (1977 - 2002)
Professional interests include: women's heart disease, cardiac imaging, diabetes, and more.
8611 Hillcrest Road 2nd Floor
Dallas, TX 75225

Dr. Katy Lease Lonergan II, MD is a hospitalist in Dallas, TX specializing in hospital medicine (hospitalist) and adult cardiology. She graduated from Johns Hopkins University School of Medicine in 2002 and has 24 years of experience. Dr. Katy Lease Lonergan II, MD is affiliated with UT Southwestern Medical Center.

View Doctor's Full Profile (214) 692-3135

Office Locations

2001 Inwood Road 5th Floor, West Campus Building 3
Dallas, TX 75390
(214) 645-8000
open_in_new
5323 Harry Hines Boulevard
Dallas, TX 75390
open_in_new
8611 Hillcrest Road 2nd Floor
Dallas, TX 75225
(214) 692-3135
open_in_new

Some issues Dr. Katy Lease Lonergan II, MD can help you with:

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.

Noteworthy Medicare Patient Procedures Performed by Dr. Katy Lease Lonergan II, MD in 2024

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

Top 25%

By Volume:

Doppler echocardiography
echocardiogram
ultrasound

By Affordability:

minimally invasive procedures
myocardial perfusion SPECT
nuclear scan
nuclear stress test
SPECT scan

In 2012, among providers in related specialties within Texas, Dr. Katy Lease Lonergan II, MD performed more Doppler echocardiography, echocardiogram (echo), and ultrasound (sonogram) procedures for Medicare patients than 75% of them and she also had a list price for minimally invasive procedures, myocardial perfusion SPECT, nuclear scan, nuclear stress test (myocardial perfusion imaging), and SPECT scan that was lower than the list prices billed to Medicare by 75% 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. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2012 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 337
doctor visit 159
hospital care 119
inpatient care 119
minimally invasive procedures 11
stress testing 71
ultrasound (sonogram) 300

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2013 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 602
doctor visit 91
hospital care 384
inpatient care 372
lab tests 15
minimally invasive procedures 19
nuclear scan 36
stress testing 59
ultrasound (sonogram) 566

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 441
Female 444
Ethnicity
Non-Hispanic White 484
Black 260
Hispanic 112
Asian 0
Other 0
Native American 0
Age
From 65 to 74 320
From 75 to 84 218
85 and over 79
Less than 65 268

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2013

Hypertension 75
High Cholesterol 71
Stroke 16
Ischemic Heart Disease 61
Depression 38
Chronic Kidney Disease 54
Asthma 16
Osteoperosis 13
Atrial Fibrilation 27
Heart Failure 59
Chronic Obstructive Pulmonary Disease 28
Diabetes 50
Dementia 16
Cancer 13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2014 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

blood draw 28
cardiac procedures 667
doctor visit 193
hospital care 135
inpatient care 135
lab tests 40
minimally invasive procedures 16
nuclear scan 48
stress testing 76
ultrasound (sonogram) 619

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 519
Female 522
Ethnicity
Non-Hispanic White 624
Black 270
Hispanic 107
Asian 22
Other 0
Native American 0
Age
From 65 to 74 410
From 75 to 84 271
85 and over 86
Less than 65 274

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2014

Hypertension 75
High Cholesterol 68
Stroke 12
Ischemic Heart Disease 59
Depression 35
Chronic Kidney Disease 52
Asthma 15
Osteoperosis 14
Atrial Fibrilation 28
Heart Failure 51
Chronic Obstructive Pulmonary Disease 27
Diabetes 43
Dementia 12
Cancer 16

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2015 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

blood draw 29
cardiac procedures 542
doctor visit 255
hospital care 222
inpatient care 222
lab tests 82
minimally invasive procedures 14
nuclear scan 50
stress testing 63
ultrasound (sonogram) 492

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 1614
Female 1700
Ethnicity
Non-Hispanic White 1754
Black 942
Hispanic 502
Asian 78
Other 0
Native American 0
Age
From 65 to 74 1294
From 75 to 84 806
85 and over 296
Less than 65 918

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2015

Hypertension 75
High Cholesterol 67
Stroke 14
Ischemic Heart Disease 55
Depression 39
Chronic Kidney Disease 55
Asthma 22
Osteoperosis 13
Atrial Fibrilation 23
Heart Failure 48
Chronic Obstructive Pulmonary Disease 29
Diabetes 46
Dementia 17
Cancer 17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2016 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 618
doctor visit 293
hospital care 129
inpatient care 129
lab tests 98
minimally invasive procedures 16
nuclear scan 64
stress testing 84
ultrasound (sonogram) 554

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 772
Female 757
Ethnicity
Non-Hispanic White 844
Black 418
Hispanic 201
Asian 41
Other 0
Native American 0
Age
From 65 to 74 625
From 75 to 84 384
85 and over 140
Less than 65 380

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2016

Hypertension 75
High Cholesterol 70
Stroke 11
Ischemic Heart Disease 57
Depression 35
Chronic Kidney Disease 59
Asthma 30
Osteoperosis 13
Atrial Fibrilation 24
Heart Failure 49
Chronic Obstructive Pulmonary Disease 27
Diabetes 47
Dementia 18
Cancer 16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2017 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 572
doctor visit 310
hospital care 256
inpatient care 256
lab tests 69
minimally invasive procedures 17
nuclear scan 66
stress testing 96
ultrasound (sonogram) 506

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 1118
Female 1159
Ethnicity
Non-Hispanic White 1219
Black 642
Hispanic 317
Asian 55
Other 0
Native American 0
Age
From 65 to 74 950
From 75 to 84 548
85 and over 193
Less than 65 586

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2017

Hypertension 75
High Cholesterol 64
Stroke 10
Ischemic Heart Disease 58
Depression 38
Chronic Kidney Disease 59
Asthma 16
Osteoperosis 16
Atrial Fibrilation 21
Heart Failure 48
Chronic Obstructive Pulmonary Disease 28
Diabetes 47
Dementia 20
Cancer 16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2018 were cardiac procedures, ultrasound (sonogram), stress testing and lab tests.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 566
doctor visit 383
lab tests 78
minimally invasive procedures 14
nuclear scan 67
stress testing 93
ultrasound (sonogram) 499

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 684
Female 690
Ethnicity
Non-Hispanic White 536
Black 498
Hispanic 294
Asian 31
Other 0
Native American 0
Age
From 65 to 74 552
From 75 to 84 283
85 and over 107
Less than 65 432

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2018

Hypertension 75
High Cholesterol 70
Stroke 9
Ischemic Heart Disease 57
Depression 39
Chronic Kidney Disease 60
Asthma 13
Osteoperosis 14
Atrial Fibrilation 19
Heart Failure 50
Chronic Obstructive Pulmonary Disease 25
Diabetes 49
Dementia 20
Cancer 14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2019 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 719
doctor visit 421
hospital care 74
inpatient care 74
lab tests 62
minimally invasive procedures 14
nuclear scan 63
stress testing 95
ultrasound (sonogram) 656

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 1015
Female 1062
Ethnicity
Non-Hispanic White 1357
Black 401
Hispanic 223
Asian 46
Other 0
Native American 0
Age
From 65 to 74 904
From 75 to 84 581
85 and over 188
Less than 65 404

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2019

Hypertension 75
High Cholesterol 71
Stroke 10
Ischemic Heart Disease 60
Depression 38
Chronic Kidney Disease 60
Asthma 11
Osteoperosis 18
Atrial Fibrilation 22
Heart Failure 47
Chronic Obstructive Pulmonary Disease 24
Diabetes 43
Dementia 23
Cancer 17

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2020 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 489
doctor visit 321
hospital care 54
inpatient care 54
minimally invasive procedures 13
nuclear scan 32
stress testing 32
ultrasound (sonogram) 457

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 614
Female 540
Ethnicity
Non-Hispanic White 627
Black 299
Hispanic 166
Asian 36
Other 0
Native American 0
Age
From 65 to 74 477
From 75 to 84 287
85 and over 106
Less than 65 284

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2020

Hypertension 75
High Cholesterol 70
Stroke 11
Ischemic Heart Disease 58
Depression 38
Chronic Kidney Disease 58
Asthma 12
Osteoperosis 16
Atrial Fibrilation 20
Heart Failure 48
Chronic Obstructive Pulmonary Disease 23
Diabetes 47
Dementia 23
Cancer 17

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2021 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 547
doctor visit 321
hospital care 62
inpatient care 62
lab tests 35
minimally invasive procedures 12
nuclear scan 51
stress testing 63
ultrasound (sonogram) 496

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 1127
Female 1106
Ethnicity
Non-Hispanic White 1348
Black 466
Hispanic 284
Asian 71
Other 0
Native American 0
Age
From 65 to 74 967
From 75 to 84 610
85 and over 216
Less than 65 440

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2021

Hypertension 75
High Cholesterol 71
Stroke 10
Ischemic Heart Disease 54
Depression 34
Chronic Kidney Disease 56
Asthma 12
Osteoperosis 16
Atrial Fibrilation 22
Heart Failure 44
Chronic Obstructive Pulmonary Disease 22
Diabetes 43
Dementia 22
Cancer 18

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2022 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 487
doctor visit 312
nuclear scan 48
stress testing 61
ultrasound (sonogram) 439

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 580
Female 602
Ethnicity
Non-Hispanic White 755
Black 219
Hispanic 137
Asian 35
Other 0
Native American 0
Age
From 65 to 74 509
From 75 to 84 386
85 and over 121
Less than 65 166

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2022

Hypertension 75
High Cholesterol 75
Stroke 14
Ischemic Heart Disease 41
Depression 29
Chronic Kidney Disease 36
Asthma 13
Osteoperosis 22
Atrial Fibrilation 33
Heart Failure 37
Chronic Obstructive Pulmonary Disease 24
Diabetes 39
Dementia 15
Cancer 21

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2023 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 452
doctor visit 301
hospital care 97
inpatient care 97
nuclear scan 35
stress testing 52
ultrasound (sonogram) 417

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 614
Female 573
Ethnicity
Non-Hispanic White 857
Black 166
Hispanic 94
Asian 0
Other 39
Native American 0
Age
From 65 to 74 483
From 75 to 84 419
85 and over 143
Less than 65 142

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2023

Hypertension 75
High Cholesterol 75
Stroke 16
Ischemic Heart Disease 47
Depression 30
Chronic Kidney Disease 40
Asthma 16
Osteoperosis 24
Atrial Fibrilation 36
Heart Failure 38
Chronic Obstructive Pulmonary Disease 26
Diabetes 39
Dementia 17
Cancer 26

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX during 2024 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

cardiac procedures 420
doctor visit 358
minimally invasive procedures 14
nuclear scan 35
stress testing 48
ultrasound (sonogram) 385

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Male 523
Female 525
Ethnicity
Non-Hispanic White 588
Black 228
Hispanic 170
Asian 32
Other 0
Native American 0
Age
From 65 to 74 435
From 75 to 84 319
85 and over 120
Less than 65 174

Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD in 2024

Hypertension 75
High Cholesterol 75
Stroke 14
Ischemic Heart Disease 41
Depression 29
Chronic Kidney Disease 38
Asthma 15
Osteoperosis 19
Atrial Fibrilation 33
Heart Failure 38
Chronic Obstructive Pulmonary Disease 22
Diabetes 42
Dementia 14
Cancer 19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Katy Lease Lonergan II, MD for Medicare patients.

The highest averages for the top procedures that Dr. Katy Lease Lonergan II, MD treated as a hospitalist in Dallas, TX were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

blood draw 28
cardiac procedures 539
doctor visit 286
hospital care 153
inpatient care 152
lab tests 59
minimally invasive procedures 14
nuclear scan 49
stress testing 68
ultrasound (sonogram) 491

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Katy Lease Lonergan II, MD.

Gender
Female 744
Male 740
Ethnicity
Black / African American 369
Asian / Pacific Islander 34
Non-Hispanic White 845
Native American / Alaskan Native 0
Hispanic 200
Other 3
Age
75 to 84 393
85 and over 138
Less than 65 343
65 to 74 609

Average of Total of Conditions of Medicare patients treated by Dr. Katy Lease Lonergan II, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Katy Lease Lonergan II, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension 69
High Cholesterol 65
Stroke 11
Ischemic Heart Disease 49
Depression 32
Chronic Kidney Disease 48
Asthma 14
Osteoporosis 15
Heart Failure 42
Chronic Obstructive Pulmonary Disease 23
Diabetes 41
Atrial Fibrillation 23
Dementia 16
Cancer 16

Education & Training

Dr. Katy Lease Lonergan II, MD graduated from Johns Hopkins University School of Medicine in 2002. She completed residency at University of California, San Francisco (UCSF) Affiliated Hospitals. She has a state license in Texas.

Medical School: Johns Hopkins University School of Medicine (2002)

Residency: University of California, San Francisco (UCSF) Affiliated Hospitals (2004)

Licensed In: Texas

Ratings & Reviews

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General Payments

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

Payments by Company
Abbott Laboratories $911 Mitra Clip system
$911
Types of Payments
Travel and Lodging $667
Food and Beverage $244

Biography

Dr. Katy Lonergan is a specialist in adult cardiology and hospital medicine (hospitalist). In her practice, she is particularly interested in diabetes, women's heart disease, and cardiac imaging. Dr. Lonergan is professionally affiliated with UT Southwestern Medical Center. She studied medicine at Johns Hopkins University School of Medicine. For her residency, Dr. Lonergan trained at a hospital affiliated with the University of California, San Francisco (UCSF). Distinctions awarded to Dr. Lonergan include: Sarnoff Cardiovascular Research Foundation Fellowship and Research training for medical students. Dr. Lonergan welcomes new patients at her office inDallas, TX as reported by UT Southwestern Medical Center.

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