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Home > MD Providers > Cardiologists

Dr. Timothy J. Shanahan, DO

(165 Ratings)

Specializes in: Cardiology (Heart Disease)

Philadelphia College of Osteopathic Medicine (2000)

100 Brown Street Suite Ms1-200
Chestertown, MD 21620

(410) 822-5571

Dr. Timothy J. Shanahan, DO is a cardiologist in Chestertown, MD specializing in cardiology (heart disease). He graduated from Philadelphia College of Osteopathic Medicine in 2000 and has 26 years of experience. Dr. Timothy J. Shanahan, DO is affiliated with University of Maryland Medical System.

Office Locations

University of Maryland Medical System

100 Brown Street Suite Ms1-200
Chestertown, MD 21620

(410) 822-5571

(410) 810-7828

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University of Maryland Medical System

125 Shoreway Drive
Queenstown, MD 21658

(410) 827-3106

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500 Cadmus Lane Suite 211
Easton, MD 21601

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522 Idlewild Avenue
Easton, MD 21601

(410) 822-5571

(410) 822-3859

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Noteworthy Medicare Patient Procedures Performed by Dr. Timothy J. Shanahan, DO in 2023

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

Top 10%

By Volume:

cardiac stress testing

cardiac procedures

myocardial perfusion SPECT

nuclear scan

stress EKG

In 2023, Dr. Timothy J. Shanahan, DO performed more cardiac (heart) stress testing, cardiac procedures, myocardial perfusion SPECT, nuclear scan, and stress EKG procedures for Medicare patients than 90% of providers in related specialties within Maryland.

Top 25%

By Volume:

Doppler echocardiography

echocardiogram

ultrasound

By Affordability:

cardiac imaging

In 2012, among providers in related specialties within Maryland, Dr. Timothy J. Shanahan, DO performed more Doppler echocardiography, echocardiogram (echo), and ultrasound (sonogram) procedures for Medicare patients than 75% of them and he also had a list price for cardiac imaging 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. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2012 were cardiac procedures, hospital care, inpatient care and stress testing.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

ambulatory monitoring	32
cardiac procedures	782
cardioversion	11
doctor visit	1069
hospital care	479
inpatient care	479
nuclear scan	167
stress testing	396
ultrasound (sonogram)	368
vascular procedures	14

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2013 were cardiac procedures, stress testing, hospital care and inpatient care.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

cardiac procedures	1054
cardioversion	20
catheterization	16
diagnostic procedures	16
doctor visit	1001
hospital care	500
inpatient care	500
minimally invasive procedures	31
nuclear scan	262
stress testing	543
ultrasound (sonogram)	495

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	979
Female	858

**Ethnicity**
Non-Hispanic White	1552
Black	256
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	632
From 75 to 84	649
85 and over	381
Less than 65	175

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2013

Hypertension	75
High Cholesterol	72
Stroke	10
Ischemic Heart Disease	62
Depression	22
Chronic Kidney Disease	35
Asthma	10
Osteoperosis	8
Atrial Fibrilation	32
Heart Failure	43
Chronic Obstructive Pulmonary Disease	23
Diabetes	40
Dementia	13
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2014 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

cardiac procedures	1093
cardioversion	20
doctor visit	996
hospital care	403
inpatient care	403
minimally invasive procedures	19
nuclear scan	250
stress testing	364
ultrasound (sonogram)	729

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	1041
Female	950

**Ethnicity**
Non-Hispanic White	1666
Black	301
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	681
From 75 to 84	717
85 and over	395
Less than 65	198

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2014

Hypertension	75
High Cholesterol	71
Stroke	13
Ischemic Heart Disease	59
Depression	22
Chronic Kidney Disease	36
Asthma	10
Osteoperosis	7
Atrial Fibrilation	31
Heart Failure	42
Chronic Obstructive Pulmonary Disease	25
Diabetes	42
Dementia	14
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2015 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

cardiac procedures	1044
catheterization	12
diagnostic procedures	12
doctor visit	934
hospital care	362
inpatient care	362
minimally invasive procedures	12
nuclear scan	196
stress testing	291
ultrasound (sonogram)	741

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	2098
Female	2090

**Ethnicity**
Non-Hispanic White	3458
Black	640
Hispanic	0
Asian	0
Other	56
Native American	0

**Age**
From 65 to 74	1520
From 75 to 84	1376
85 and over	880
Less than 65	412

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2015

Hypertension	75
High Cholesterol	72
Stroke	13
Ischemic Heart Disease	57
Depression	26
Chronic Kidney Disease	37
Asthma	16
Osteoperosis	7
Atrial Fibrilation	30
Heart Failure	40
Chronic Obstructive Pulmonary Disease	26
Diabetes	40
Dementia	16
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2016 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

cardiac procedures	1047
doctor visit	921
hospital care	334
inpatient care	334
nuclear scan	230
stress testing	366
ultrasound (sonogram)	681

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	1357
Female	1549

**Ethnicity**
Non-Hispanic White	2364
Black	470
Hispanic	15
Asian	0
Other	43
Native American	0

**Age**
From 65 to 74	1029
From 75 to 84	989
85 and over	550
Less than 65	338

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2016

Hypertension	75
High Cholesterol	69
Stroke	12
Ischemic Heart Disease	55
Depression	30
Chronic Kidney Disease	41
Asthma	29
Osteoperosis	8
Atrial Fibrilation	25
Heart Failure	34
Chronic Obstructive Pulmonary Disease	26
Diabetes	41
Dementia	16
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2017 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

cardiac procedures	1384
doctor visit	861
hospital care	249
inpatient care	249
minimally invasive procedures	13
nuclear scan	294
stress testing	645
ultrasound (sonogram)	739

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	1559
Female	1774

**Ethnicity**
Non-Hispanic White	2653
Black	600
Hispanic	0
Asian	0
Other	48
Native American	0

**Age**
From 65 to 74	1185
From 75 to 84	1149
85 and over	619
Less than 65	380

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2017

Hypertension	75
High Cholesterol	62
Stroke	12
Ischemic Heart Disease	56
Depression	33
Chronic Kidney Disease	42
Asthma	15
Osteoperosis	9
Atrial Fibrilation	25
Heart Failure	35
Chronic Obstructive Pulmonary Disease	28
Diabetes	42
Dementia	19
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2018 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

cardiac procedures	1361
doctor visit	796
hospital care	220
inpatient care	220
nuclear scan	264
stress testing	569
ultrasound (sonogram)	792

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	1403
Female	1587

**Ethnicity**
Non-Hispanic White	2455
Black	442
Hispanic	28
Asian	0
Other	51
Native American	0

**Age**
From 65 to 74	1035
From 75 to 84	1082
85 and over	535
Less than 65	338

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2018

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	58
Depression	33
Chronic Kidney Disease	43
Asthma	12
Osteoperosis	9
Atrial Fibrilation	25
Heart Failure	34
Chronic Obstructive Pulmonary Disease	25
Diabetes	42
Dementia	18
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2019 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

ambulatory monitoring	20
cardiac procedures	1591
doctor visit	770
hospital care	157
inpatient care	157
nuclear scan	301
stress testing	663
ultrasound (sonogram)	908

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	1374
Female	1573

**Ethnicity**
Non-Hispanic White	2390
Black	465
Hispanic	0
Asian	0
Other	57
Native American	0

**Age**
From 65 to 74	1044
From 75 to 84	1069
85 and over	531
Less than 65	303

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2019

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	54
Depression	31
Chronic Kidney Disease	45
Asthma	12
Osteoperosis	12
Atrial Fibrilation	24
Heart Failure	34
Chronic Obstructive Pulmonary Disease	25
Diabetes	40
Dementia	19
Cancer	17

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2020 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

cardiac procedures	1196
doctor visit	790
hospital care	37
inpatient care	37
nuclear scan	247
stress testing	509
ultrasound (sonogram)	687

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	1045
Female	1075

**Ethnicity**
Non-Hispanic White	1702
Black	337
Hispanic	0
Asian	0
Other	58
Native American	0

**Age**
From 65 to 74	801
From 75 to 84	771
85 and over	355
Less than 65	193

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2020

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	55
Depression	28
Chronic Kidney Disease	45
Asthma	12
Osteoperosis	10
Atrial Fibrilation	26
Heart Failure	34
Chronic Obstructive Pulmonary Disease	24
Diabetes	40
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2021 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

cardiac procedures	1422
doctor visit	1011
hospital care	50
inpatient care	50
nuclear scan	268
stress testing	558
ultrasound (sonogram)	864

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	1102
Female	1194

**Ethnicity**
Non-Hispanic White	1901
Black	314
Hispanic	0
Asian	0
Other	59
Native American	0

**Age**
From 65 to 74	899
From 75 to 84	854
85 and over	336
Less than 65	207

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2021

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	53
Depression	24
Chronic Kidney Disease	41
Asthma	10
Osteoperosis	10
Atrial Fibrilation	24
Heart Failure	31
Chronic Obstructive Pulmonary Disease	19
Diabetes	37
Dementia	14
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2022 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

cardiac procedures	1051
doctor visit	1113
hospital care	71
inpatient care	71
nuclear scan	238
stress testing	496
ultrasound (sonogram)	555

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	1192
Female	1287

**Ethnicity**
Non-Hispanic White	2067
Black	328
Hispanic	0
Asian	0
Other	63
Native American	0

**Age**
From 65 to 74	939
From 75 to 84	943
85 and over	388
Less than 65	209

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2022

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	43
Depression	27
Chronic Kidney Disease	30
Asthma	14
Osteoperosis	14
Atrial Fibrilation	32
Heart Failure	29
Chronic Obstructive Pulmonary Disease	24
Diabetes	39
Dementia	10
Cancer	18

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD during 2023 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

cardiac procedures	1266
doctor visit	1003
hospital care	90
inpatient care	90
nuclear scan	272
stress testing	596
ultrasound (sonogram)	670

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	1259
Female	1240

**Ethnicity**
Non-Hispanic White	2122
Black	288
Hispanic	0
Asian	0
Other	64
Native American	0

**Age**
From 65 to 74	928
From 75 to 84	1003
85 and over	376
Less than 65	192

Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO in 2023

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	44
Depression	24
Chronic Kidney Disease	31
Asthma	13
Osteoperosis	15
Atrial Fibrilation	35
Heart Failure	29
Chronic Obstructive Pulmonary Disease	23
Diabetes	38
Dementia	10
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Timothy J. Shanahan, DO for Medicare patients.

The highest averages for the top procedures that Dr. Timothy J. Shanahan, DO treated as a cardiologist in Chestertown, MD were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

ambulatory monitoring	26
cardiac procedures	1190
cardioversion	17
catheterization	14
diagnostic procedures	14
doctor visit	938
hospital care	246
inpatient care	246
minimally invasive procedures	18
nuclear scan	249
stress testing	499
ultrasound (sonogram)	685
vascular procedures	14

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Timothy J. Shanahan, DO.

**Gender**
Male	1200
Female	1264

**Ethnicity**
Black / African American	370
Asian / Pacific Islander	0
Non-Hispanic White	2027
Hispanic	3
Native American / Alaskan Native	0
Other	42

**Age**
75 to 84	883
85 and over	445
Less than 65	245
65 to 74	891

Average of Total of Conditions of Medicare patients treated by Dr. Timothy J. Shanahan, DO From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Timothy J. Shanahan, DO treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	68
High Cholesterol	66
Stroke	11
Ischemic Heart Disease	49
Depression	25
Chronic Kidney Disease	35
Asthma	12
Osteoporosis	9
Heart Failure	32
Chronic Obstructive Pulmonary Disease	22
Diabetes	36
Atrial Fibrillation	25
Cancer	14
Dementia	13

Education & Training

Dr. Timothy J. Shanahan, DO graduated from Philadelphia College of Osteopathic Medicine in 2000. He completed residency at St. Luke's Cornwall Hospital. He is certified by the Board Certification: American Osteopathic Association - Cardiology and has a state license in Maryland.

Medical School: Philadelphia College of Osteopathic Medicine (2000)

Residency: St. Luke's Cornwall Hospital (2003)

Board Certification: Board Certification: American Osteopathic Association - Cardiology

Licensed In: Maryland

Affiliations & Hospitals

Dr. Timothy J. Shanahan, DO is associated with these hospitals and organizations:

University of Maryland Medical System

Ratings & Reviews

Dr. Timothy J. Shanahan, DO has an exceptional overall rating with an average of 4.8 out of 5 stars based on 165 ratings. We collect ratings and reviews of Dr. Timothy J. Shanahan, DO from all over the web to help you find the right in Chestertown, MD.

4.8

Overall Rating

(165 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Medtronic Vascular, Inc.	$10,074 Patient Management - Data Connectivity Solutions $3,085	Cardiac Diagnostics and Monitoring $1,911	Cardiac Resynchronization Therapy - CRT $1,490	Evera $359	Pacemakers $354	Other $2,876
Amgen Inc.	$649 Repatha $455	EVENITY $85	Prolia $67	Corlanor $24	$18
AstraZeneca Pharmaceuticals LP	$397 BRILINTA $157	FARXIGA $141	ANDEXXA $99
Janssen Pharmaceuticals, Inc	$354 XARELTO $320	INVOKANA $32	$3
SANOFI-AVENTIS U.S. LLC	$243 PRALUENT $183	MULTAQ $60
Other	$2,091 JARDIANCE $217	VERQUVO $153	ELIQUIS $128	Ampere RF Ablation Generator $125	ENTRESTO $111	Other $1,356

**Types of Payments**
Food and Beverage	$7,963
Travel and Lodging	$5,729
Education	$116

Biography

Dr. Timothy Shanahan's specialty is cardiology (heart disease). He is rated highly by his patients. Dr. Shanahan studied medicine at Philadelphia College of Osteopathic Medicine. He is professionally affiliated with the University of Maryland Medical System.