In 2023, Dr. Margaret Mary Sullivan, MD had a list price for 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 95% of providers in related specialties within Texas. 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 25%

By Affordability:

cardiac imaging

cardiac procedures

In 2012, Dr. Margaret Mary Sullivan, MD had a list price for cardiac imaging, and cardiac procedures that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Texas. 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. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2012 were cardiac procedures, ultrasound (sonogram), ambulatory monitoring and stress testing.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	116
cardiac procedures	540
doctor visit	1361
hospital care	12
inpatient care	12
nuclear scan	80
stress testing	115
ultrasound (sonogram)	344

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2013 were cardiac procedures, ultrasound (sonogram), ambulatory monitoring and stress testing.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	97
cardiac procedures	521
doctor visit	1196
nuclear scan	72
stress testing	96
ultrasound (sonogram)	352
vascular procedures	78

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	261
Female	369

**Ethnicity**
Non-Hispanic White	491
Black	75
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	248
From 75 to 84	185
85 and over	108
Less than 65	89

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2013

Hypertension	75
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	46
Depression	24
Chronic Kidney Disease	28
Asthma	6
Osteoperosis	10
Atrial Fibrilation	18
Heart Failure	38
Chronic Obstructive Pulmonary Disease	18
Diabetes	41
Dementia	17
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2014 were cardiac procedures, ultrasound (sonogram), stress testing and ambulatory monitoring.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	72
cardiac procedures	461
doctor visit	1263
nuclear scan	68
stress testing	92
ultrasound (sonogram)	321
vascular procedures	64

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	218
Female	355

**Ethnicity**
Non-Hispanic White	445
Black	0
Hispanic	64
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	234
From 75 to 84	189
85 and over	96
Less than 65	54

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2014

Hypertension	75
High Cholesterol	70
Stroke	6
Ischemic Heart Disease	52
Depression	23
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	10
Atrial Fibrilation	23
Heart Failure	37
Chronic Obstructive Pulmonary Disease	14
Diabetes	40
Dementia	15
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2015 were cardiac procedures, ultrasound (sonogram), stress testing and ambulatory monitoring.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	52
cardiac procedures	373
doctor visit	1107
nuclear scan	47
stress testing	80
ultrasound (sonogram)	274
vascular procedures	33

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	486
Female	648

**Ethnicity**
Non-Hispanic White	914
Black	0
Hispanic	112
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	466
From 75 to 84	406
85 and over	182
Less than 65	80

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2015

Hypertension	75
High Cholesterol	72
Stroke	9
Ischemic Heart Disease	55
Depression	25
Chronic Kidney Disease	38
Asthma	14
Osteoperosis	9
Atrial Fibrilation	25
Heart Failure	41
Chronic Obstructive Pulmonary Disease	19
Diabetes	42
Dementia	16
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2016 were cardiac procedures, ultrasound (sonogram), stress testing and ambulatory monitoring.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	38
cardiac procedures	355
doctor visit	1043
hospital care	13
inpatient care	13
nuclear scan	35
stress testing	60
ultrasound (sonogram)	282
vascular procedures	13

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	246
Female	327

**Ethnicity**
Non-Hispanic White	455
Black	0
Hispanic	64
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	227
From 75 to 84	193
85 and over	103
Less than 65	50

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2016

Hypertension	75
High Cholesterol	69
Stroke	8
Ischemic Heart Disease	53
Depression	24
Chronic Kidney Disease	40
Asthma	19
Osteoperosis	6
Atrial Fibrilation	23
Heart Failure	38
Chronic Obstructive Pulmonary Disease	19
Diabetes	42
Dementia	16
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2017 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	41
cardiac procedures	376
doctor visit	1026
hospital care	15
inpatient care	15
nuclear scan	46
stress testing	82
ultrasound (sonogram)	289
vascular procedures	12

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	275
Female	321

**Ethnicity**
Non-Hispanic White	476
Black	0
Hispanic	59
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	213
85 and over	104
Less than 65	63

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2017

Hypertension	75
High Cholesterol	53
Stroke	9
Ischemic Heart Disease	55
Depression	29
Chronic Kidney Disease	41
Asthma	6
Osteoperosis	6
Atrial Fibrilation	22
Heart Failure	40
Chronic Obstructive Pulmonary Disease	19
Diabetes	42
Dementia	16
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2018 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	35
cardiac procedures	403
doctor visit	1073
hospital care	47
inpatient care	47
nuclear scan	40
stress testing	74
ultrasound (sonogram)	328
vascular procedures	13

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	276
Female	347

**Ethnicity**
Non-Hispanic White	508
Black	0
Hispanic	65
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	230
From 75 to 84	236
85 and over	109
Less than 65	48

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2018

Hypertension	75
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	57
Depression	30
Chronic Kidney Disease	39
Asthma	6
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	40
Chronic Obstructive Pulmonary Disease	20
Diabetes	41
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2019 were cardiac procedures, ultrasound (sonogram), stress testing and ambulatory monitoring.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	68
cardiac procedures	460
doctor visit	1129
nuclear scan	37
stress testing	81
ultrasound (sonogram)	355

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	279
Female	320

**Ethnicity**
Non-Hispanic White	478
Black	0
Hispanic	66
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	230
From 75 to 84	223
85 and over	103
Less than 65	43

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	56
Depression	28
Chronic Kidney Disease	44
Asthma	8
Osteoperosis	9
Atrial Fibrilation	24
Heart Failure	45
Chronic Obstructive Pulmonary Disease	23
Diabetes	44
Dementia	21
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2020 were cardiac procedures, ultrasound (sonogram), stress testing and ambulatory monitoring.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	53
cardiac procedures	351
doctor visit	914
nuclear scan	40
stress testing	58
ultrasound (sonogram)	258
vascular procedures	12

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	236
Female	258

**Ethnicity**
Non-Hispanic White	402
Black	0
Hispanic	51
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	184
From 75 to 84	199
85 and over	85
Less than 65	26

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	56
Depression	31
Chronic Kidney Disease	47
Asthma	9
Osteoperosis	9
Atrial Fibrilation	27
Heart Failure	43
Chronic Obstructive Pulmonary Disease	21
Diabetes	43
Dementia	21
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2021 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	31
cardiac procedures	255
doctor visit	750
nuclear scan	31
stress testing	43
ultrasound (sonogram)	193
vascular procedures	11

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	205
Female	233

**Ethnicity**
Non-Hispanic White	374
Black	0
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	172
From 75 to 84	168
85 and over	73
Less than 65	25

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2021

Hypertension	75
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	54
Depression	26
Chronic Kidney Disease	46
Asthma	8
Osteoperosis	9
Atrial Fibrilation	26
Heart Failure	39
Chronic Obstructive Pulmonary Disease	21
Diabetes	44
Dementia	16
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2022 were cardiac procedures, ultrasound (sonogram), stress testing and ambulatory monitoring.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	30
cardiac procedures	261
doctor visit	613
nuclear scan	23
stress testing	45
ultrasound (sonogram)	208
vascular procedures	17

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	215
Female	237

**Ethnicity**
Non-Hispanic White	383
Black	0
Hispanic	40
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	180
From 75 to 84	170
85 and over	78
Less than 65	24

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	45
Depression	26
Chronic Kidney Disease	35
Asthma	9
Osteoperosis	14
Atrial Fibrilation	33
Heart Failure	36
Chronic Obstructive Pulmonary Disease	24
Diabetes	41
Dementia	12
Cancer	15

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX during 2023 were cardiac procedures, ultrasound (sonogram), stress testing and ambulatory monitoring.

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

ambulatory monitoring	21
cardiac procedures	210
doctor visit	585
nuclear scan	19
stress testing	47
ultrasound (sonogram)	170

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Male	206
Female	224

**Ethnicity**
Non-Hispanic White	376
Black	0
Hispanic	27
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	168
85 and over	69
Less than 65	17

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	46
Depression	23
Chronic Kidney Disease	34
Asthma	10
Osteoperosis	15
Atrial Fibrilation	30
Heart Failure	36
Chronic Obstructive Pulmonary Disease	22
Diabetes	39
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Margaret Mary Sullivan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Margaret Mary Sullivan, MD treated as a cardiologist in Ennis, TX were cardiac procedures, ultrasound (sonogram), stress testing and ambulatory monitoring.

ambulatory monitoring	54
cardiac procedures	380
doctor visit	1005
hospital care	21
inpatient care	21
nuclear scan	44
stress testing	72
ultrasound (sonogram)	281
vascular procedures	28

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Margaret Mary Sullivan, MD.

**Gender**
Female	303
Male	241

**Ethnicity**
Black / African American	6
Asian / Pacific Islander	0
Non-Hispanic White	441
Hispanic	48
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	92
75 to 84	195
Less than 65	43
65 to 74	213

Average of Total of Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Margaret Mary Sullivan, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	68
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	47
Depression	24
Chronic Kidney Disease	35
Asthma	8
Osteoporosis	8
Heart Failure	36
Chronic Obstructive Pulmonary Disease	18
Diabetes	38
Atrial Fibrillation	22
Dementia	14
Cancer	9

Education & Training

She has a state license in Texas.

Licensed In: Texas

Ratings & Reviews

Dr. Margaret Mary Sullivan, MD does not have any reviews yet, be the first to leave a review of Dr. Margaret Mary Sullivan, MD here: Leave a Review

(No ratings)

Leave a Review

General Payments

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

**Payments by Company**
Medtronic Vascular, Inc.	$3,913 Patient Management - Data Connectivity Solutions $2,394	Cardiac Diagnostics and Monitoring $1,433	Amplia MRI $63	Reveal LINQ $12	Micra $10
Amgen Inc.	$519 Corlanor $242	Repatha $238	Prolia $25	$14
AstraZeneca Pharmaceuticals LP	$518 BRILINTA $234	FARXIGA $129	CRESTOR $110	SYMBICORT $31	BYDUREON $14
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$443 LifeVest $443
E.R. Squibb & Sons, L.L.C.	$278 ELIQUIS $263	ONGLYZA $15
Other	$2,050 ELIQUIS $191	VERQUVO $171	ENTRESTO $164	JARDIANCE $152	Ozempic $143	Other $1,229

**Types of Payments**
Food and Beverage	$4,409
Travel and Lodging	$3,073
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$225
Education	$14

Biography

Dr. Margaret Sullivan's medical specialty is adult cardiology. Dr. Sullivan studied medicine at the University of Texas Health Science Center at San Antonio, School of Medicine.

Select Year:

Dr. Margaret Mary Sullivan, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Margaret Mary Sullivan, MD in 2023

By Affordability:

By Affordability:

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. Margaret Mary Sullivan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Margaret Mary Sullivan, MD From 2012 - 2023

Education & Training

Ratings & Reviews

General Payments

Biography

Other Providers in Ennis, TX