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Dr. Thomas B. Cahill JR., MD

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Specializes in: Adult Cardiology

St. Louis University School of Medicine (1978)

Three Saint Elizabeth Boulevard Suite 2800
O'Fallon, IL 62269

(618) 233-6044

Dr. Thomas B. Cahill JR., MD is a cardiologist in Sparta, IL specializing in adult cardiology. He graduated from St. Louis University School of Medicine in 1978 and has 48 years of experience. Dr. Thomas B. Cahill JR., MD is affiliated with Sparta Community Hospital, ST JOSEPHS HOSPITAL BREESE OF THE HOSPITAL SISTERS OF THE THIRD ORDE, HSHS HOLY FAMILY HOSPITAL INC, ST ELIZABETHS HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER and PRAIRIE CARDIOVASCULAR CONSULTANTS LTD.

Office Locations

205 S. Burns Avenue
Sparta, IL 62286

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Three Saint Elizabeth Boulevard Suite 2800
O'Fallon, IL 62269

(618) 233-6044

(833) 973-4218

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In The News

“Cardiologist Thomas Cahill, MD, recently became a "Diplomate of the Certification Board of Nuclear Cardiology" after passing the recertification examination in December.”—"Dr. Cahill Earns Recertification in Nuclear Cardiology", Moultrie County News-Progress, March 2016

Noteworthy Medicare Patient Procedures Performed by Dr. Thomas B. Cahill JR., MD in 2023

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

Top 25%

By Affordability:

cardiac imaging

hospital care

inpatient care

inpatient hospital care

In 2012, Dr. Thomas B. Cahill JR., MD had a list price for cardiac imaging, hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Illinois. 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. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2012 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

ambulatory monitoring	198
blood draw	1293
cardiac procedures	3570
cardioversion	34
doctor visit	2373
hospital care	1680
inpatient care	1680
lab tests	12
minimally invasive procedures	63
nuclear scan	782
stress testing	1706
ultrasound (sonogram)	1717

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2013 were cardiac procedures, hospital care, inpatient care and stress testing.

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

blood draw	264
cardiac procedures	1077
doctor visit	683
hospital care	634
inpatient care	597
nuclear scan	159
outpatient care	37
stress testing	590
ultrasound (sonogram)	527

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	697
Female	782

**Ethnicity**
Non-Hispanic White	1420
Black	37
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	511
From 75 to 84	482
85 and over	296
Less than 65	190

Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD in 2013

Hypertension	75
High Cholesterol	72
Stroke	7
Ischemic Heart Disease	70
Depression	30
Chronic Kidney Disease	34
Asthma	12
Osteoperosis	9
Atrial Fibrilation	29
Heart Failure	47
Chronic Obstructive Pulmonary Disease	32
Diabetes	38
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2014 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

cardiac procedures	2004
cardioversion	18
doctor visit	1354
hospital care	1342
inpatient care	1236
nuclear scan	275
outpatient care	106
stress testing	992
ultrasound (sonogram)	1088

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	743
Female	953

**Ethnicity**
Non-Hispanic White	1653
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	574
From 75 to 84	548
85 and over	331
Less than 65	243

Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	67
Depression	34
Chronic Kidney Disease	34
Asthma	11
Osteoperosis	10
Atrial Fibrilation	26
Heart Failure	45
Chronic Obstructive Pulmonary Disease	31
Diabetes	36
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2015 were cardiac procedures, hospital care, inpatient care and stress testing.

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

cardiac procedures	1692
cardioversion	19
doctor visit	1495
hospital care	1465
inpatient care	1355
nuclear scan	196
outpatient care	110
stress testing	916
ultrasound (sonogram)	859

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	1600
Female	1862

**Ethnicity**
Non-Hispanic White	3380
Black	30
Hispanic	0
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	1218
From 75 to 84	1124
85 and over	588
Less than 65	532

Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	66
Depression	36
Chronic Kidney Disease	39
Asthma	22
Osteoperosis	9
Atrial Fibrilation	26
Heart Failure	46
Chronic Obstructive Pulmonary Disease	34
Diabetes	40
Dementia	15
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2016 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

cardiac procedures	1604
cardioversion	28
doctor visit	1557
hospital care	1395
inpatient care	1323
nuclear scan	214
outpatient care	72
stress testing	835
ultrasound (sonogram)	860

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	843
Female	1150

**Ethnicity**
Non-Hispanic White	1932
Black	23
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	755
From 75 to 84	614
85 and over	325
Less than 65	299

Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	66
Depression	34
Chronic Kidney Disease	46
Asthma	37
Osteoperosis	10
Atrial Fibrilation	26
Heart Failure	48
Chronic Obstructive Pulmonary Disease	35
Diabetes	40
Dementia	18
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2017 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

cardiac procedures	1160
cardioversion	23
doctor visit	1464
hospital care	758
inpatient care	699
nuclear scan	162
outpatient care	59
stress testing	569
ultrasound (sonogram)	648

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	1043
Female	1331

**Ethnicity**
Non-Hispanic White	2299
Black	30
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	831
From 75 to 84	693
85 and over	453
Less than 65	397

Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD in 2017

Hypertension	75
High Cholesterol	68
Stroke	8
Ischemic Heart Disease	64
Depression	35
Chronic Kidney Disease	47
Asthma	10
Osteoperosis	8
Atrial Fibrilation	23
Heart Failure	48
Chronic Obstructive Pulmonary Disease	32
Diabetes	39
Dementia	20
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2018 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

cardiac procedures	833
doctor visit	853
hospital care	600
inpatient care	569
nuclear scan	130
outpatient care	31
stress testing	402
ultrasound (sonogram)	464

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	822
Female	1018

**Ethnicity**
Non-Hispanic White	1764
Black	46
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	656
From 75 to 84	550
85 and over	343
Less than 65	291

Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	65
Depression	31
Chronic Kidney Disease	47
Asthma	7
Osteoperosis	9
Atrial Fibrilation	27
Heart Failure	51
Chronic Obstructive Pulmonary Disease	31
Diabetes	42
Dementia	22
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2019 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

ambulatory monitoring	13
cardiac procedures	592
doctor visit	549
hospital care	415
inpatient care	415
nuclear scan	81
stress testing	195
ultrasound (sonogram)	384

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	472
Female	629

**Ethnicity**
Non-Hispanic White	936
Black	134
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	383
From 75 to 84	341
85 and over	205
Less than 65	172

Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	65
Depression	32
Chronic Kidney Disease	55
Asthma	10
Osteoperosis	9
Atrial Fibrilation	29
Heart Failure	50
Chronic Obstructive Pulmonary Disease	33
Diabetes	42
Dementia	20
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2020 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

cardiac procedures	593
doctor visit	583
hospital care	386
inpatient care	386
nuclear scan	85
stress testing	181
ultrasound (sonogram)	412

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	747
Female	850

**Ethnicity**
Non-Hispanic White	1374
Black	180
Hispanic	0
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	583
From 75 to 84	485
85 and over	308
Less than 65	221

Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	65
Depression	33
Chronic Kidney Disease	53
Asthma	10
Osteoperosis	7
Atrial Fibrilation	29
Heart Failure	47
Chronic Obstructive Pulmonary Disease	30
Diabetes	41
Dementia	23
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2021 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

cardiac procedures	594
doctor visit	798
hospital care	321
inpatient care	321
nuclear scan	115
stress testing	231
ultrasound (sonogram)	363

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	691
Female	876

**Ethnicity**
Non-Hispanic White	1369
Black	152
Hispanic	0
Asian	0
Other	27
Native American	0

**Age**
From 65 to 74	578
From 75 to 84	496
85 and over	288
Less than 65	205

Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	62
Depression	31
Chronic Kidney Disease	54
Asthma	9
Osteoperosis	9
Atrial Fibrilation	26
Heart Failure	45
Chronic Obstructive Pulmonary Disease	27
Diabetes	38
Dementia	19
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL during 2022 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

cardiac procedures	597
doctor visit	831
hospital care	422
inpatient care	422
nuclear scan	87
stress testing	209
ultrasound (sonogram)	388

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	772
Female	894

**Ethnicity**
Non-Hispanic White	1459
Black	149
Hispanic	0
Asian	0
Other	34
Native American	0

**Age**
From 65 to 74	594
From 75 to 84	551
85 and over	358
Less than 65	163

Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	19
Ischemic Heart Disease	55
Depression	28
Chronic Kidney Disease	41
Asthma	10
Osteoperosis	11
Atrial Fibrilation	39
Heart Failure	42
Chronic Obstructive Pulmonary Disease	29
Diabetes	39
Dementia	17
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Thomas B. Cahill JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. Thomas B. Cahill JR., MD treated as a cardiologist in Sparta, IL were cardiac procedures, hospital care, inpatient care and blood draw.

ambulatory monitoring	105
blood draw	778
cardiac procedures	1301
cardioversion	24
doctor visit	1140
hospital care	856
inpatient care	818
lab tests	12
minimally invasive procedures	63
nuclear scan	207
outpatient care	69
stress testing	620
ultrasound (sonogram)	700

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Thomas B. Cahill JR., MD.

**Gender**
Male	766
Female	940

**Ethnicity**
Black / African American	72
Asian / Pacific Islander	0
Non-Hispanic White	1598
Native American / Alaskan Native	0
Hispanic	4
Other	10

**Age**
75 to 84	534
85 and over	317
Less than 65	246
65 to 74	607

Average of Total of Conditions of Medicare patients treated by Dr. Thomas B. Cahill JR., MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Thomas B. Cahill JR., MD treated were hypertension, high cholesterol, ischemic heart disease and heart failure.

Hypertension	68
High Cholesterol	67
Stroke	9
Ischemic Heart Disease	58
Depression	29
Chronic Kidney Disease	40
Asthma	12
Osteoporosis	8
Heart Failure	42
Chronic Obstructive Pulmonary Disease	28
Diabetes	35
Atrial Fibrillation	25
Dementia	16
Cancer	12

Education & Training

Dr. Thomas B. Cahill JR., MD graduated from St. Louis University School of Medicine in 1978. He is certified by the Certifications: American Board of Internal Medicine and has a state license in Illinois.

Medical School: St. Louis University School of Medicine (1978)

Board Certification: Certifications: American Board of Internal Medicine

Licensed In: Illinois

Affiliations & Hospitals

Dr. Thomas B. Cahill JR., MD is associated with these hospitals and organizations:

Sparta Community Hospital

ST JOSEPHS HOSPITAL BREESE OF THE HOSPITAL SISTERS OF THE THIRD ORDE

HSHS HOLY FAMILY HOSPITAL INC

ST ELIZABETHS HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER

PRAIRIE CARDIOVASCULAR CONSULTANTS LTD

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General Payments

These charts describe general payments received by Dr. Thomas B. Cahill JR., MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Janssen Pharmaceuticals, Inc	$435 XARELTO $413	INVOKANA $22
E.R. Squibb & Sons, L.L.C.	$292 ELIQUIS $292
Novartis Pharmaceuticals Corporation	$217 ENTRESTO $166	NON BRAND $36	LEQVIO $15
Boehringer Ingelheim Pharmaceuticals, Inc.	$171 Pradaxa $87	Praxbind $59	JARDIANCE $14	COMBIVENT RESPIMAT $11
Daiichi Sankyo Inc.	$137 SAVAYSA $106	Welchol $12	Azor $11	MOVANTIK $5	Benicar $2
Other	$824 BRILINTA $110	SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER $77	LifeVest $74	VELTASSA $51	NORTHERA $50	Other $463

**Types of Payments**
Food and Beverage	$1,910
Education	$166

Research Payments

Dr. Thomas B. Cahill JR., MD has received 41 research payments totaling $7,754.

Biography

Dr. Thomas Cahill is a specialist in adult cardiology. He is professionally affiliated with Sparta Community Hospital. Dr. Cahill attended medical school at St. Louis University School of Medicine.