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Dr. William Clay Warnick, FACC, MD

Accepting New Patients

(89 Ratings)

Specializes in: Advanced Heart Failure and Transplant Cardiology

Drexel University College of Medicine

142 Wallace Avenue Suite 109
Downingtown, PA 19335

1-800-789-7366

Dr. William Clay Warnick, FACC, MD is a cardiologist in Downingtown, PA specializing in advanced heart failure and transplant cardiology. He graduated from Drexel University College of Medicine. Dr. William Clay Warnick, FACC, MD is affiliated with Cardiology Consultants of Philadelphia (CCP).

Office Locations

142 Wallace Avenue Suite 109
Downingtown, PA 19335

1-800-789-7366

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404 Mcfarlan Road
Kennett Square, PA 19348

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455 West Woodview Road Penn Medicine Southern Chester County
West Grove, PA 19390

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915 Old Fern Hill Road Building A, Suite 5
West Chester, PA 19380

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In The News

“In the course of this movement, congestive heart failure received the most attention as the number one cause for hospitalization in the US, says William Clay Warnick, MD, the medical director of...”—"Chester County Hospital introduces 'life-changing' implant for heart patients", Daily Local News, March 2021

“"This honor illustrates the hospital's tenacity and commitment to providing the highest level of care possible to our heart failure patient population," said W. Clay Warnick, MD, Medical Director,...”—"Chester County Hospital earns AHA award for heart care", Daily Local News, October 2020

Noteworthy Medicare Patient Procedures Performed by Dr. William Clay Warnick, FACC, MD in 2023

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

Top 5%

By Volume:

stress EKG

In 2023, Dr. William Clay Warnick, FACC, MD performed more stress EKG procedures for Medicare patients than 95% of providers in related specialties within Pennsylvania.

Top 10%

By Volume:

cardiac stress testing

cardiac procedures

Doppler echocardiography

In 2023, Dr. William Clay Warnick, FACC, MD performed more cardiac (heart) stress testing, cardiac procedures, and Doppler echocardiography procedures for Medicare patients than 90% of providers in related specialties within Pennsylvania.

Top 25%

By Volume:

echocardiogram

ultrasound

In 2012, Dr. William Clay Warnick, FACC, MD performed more echocardiogram (echo), and ultrasound (sonogram) procedures for Medicare patients than 75% of providers in related specialties within Pennsylvania.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2012 were lab tests, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	39
cardiac procedures	649
cardioversion	16
doctor visit	2210
hospital care	608
inpatient care	608
lab tests	821
minimally invasive procedures	15
nuclear scan	169
nursing home care	16
stress testing	361
ultrasound (sonogram)	318
vascular procedures	55

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2013 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	36
cardiac procedures	643
cardioversion	18
doctor visit	1366
hospital care	528
inpatient care	528
minimally invasive procedures	21
nuclear scan	149
stress testing	305
ultrasound (sonogram)	318
vascular procedures	16

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	791
Female	834

**Ethnicity**
Non-Hispanic White	1486
Black	85
Hispanic	0
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	665
From 75 to 84	517
85 and over	348
Less than 65	95

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	63
Depression	21
Chronic Kidney Disease	31
Asthma	8
Osteoperosis	8
Atrial Fibrilation	32
Heart Failure	35
Chronic Obstructive Pulmonary Disease	21
Diabetes	33
Dementia	14
Cancer	18

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2014 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	33
cardiac procedures	782
cardioversion	19
doctor visit	1396
hospital care	563
inpatient care	545
minimally invasive procedures	21
nuclear scan	180
outpatient care	18
stress testing	374
ultrasound (sonogram)	375

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	1011
Female	1068

**Ethnicity**
Non-Hispanic White	1850
Black	122
Hispanic	42
Asian	0
Other	39
Native American	0

**Age**
From 65 to 74	843
From 75 to 84	621
85 and over	457
Less than 65	158

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	63
Depression	25
Chronic Kidney Disease	33
Asthma	9
Osteoperosis	10
Atrial Fibrilation	31
Heart Failure	34
Chronic Obstructive Pulmonary Disease	22
Diabetes	35
Dementia	15
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2015 were cardiac procedures, hospital care, inpatient care and stress testing.

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	20
cardiac procedures	684
doctor visit	1498
hospital care	513
inpatient care	513
minimally invasive procedures	19
nuclear scan	160
stress testing	340
ultrasound (sonogram)	324

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	1854
Female	1786

**Ethnicity**
Non-Hispanic White	3280
Black	178
Hispanic	68
Asian	36
Other	78
Native American	0

**Age**
From 65 to 74	1514
From 75 to 84	1096
85 and over	762
Less than 65	268

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	64
Depression	25
Chronic Kidney Disease	35
Asthma	17
Osteoperosis	9
Atrial Fibrilation	29
Heart Failure	34
Chronic Obstructive Pulmonary Disease	22
Diabetes	34
Dementia	15
Cancer	16

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2016 were cardiac procedures, stress testing, hospital care and inpatient care.

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	16
cardiac procedures	715
doctor visit	1619
hospital care	402
inpatient care	402
minimally invasive procedures	23
nuclear scan	197
stress testing	436
ultrasound (sonogram)	286

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	942
Female	859

**Ethnicity**
Non-Hispanic White	1611
Black	82
Hispanic	40
Asian	0
Other	51
Native American	0

**Age**
From 65 to 74	795
From 75 to 84	587
85 and over	321
Less than 65	98

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	65
Depression	22
Chronic Kidney Disease	36
Asthma	22
Osteoperosis	8
Atrial Fibrilation	29
Heart Failure	31
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2017 were cardiac procedures, stress testing, hospital care and inpatient care.

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	31
cardiac procedures	536
cardioversion	12
doctor visit	1755
hospital care	262
inpatient care	262
nuclear scan	132
stress testing	281
ultrasound (sonogram)	224

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	954
Female	902

**Ethnicity**
Non-Hispanic White	1673
Black	84
Hispanic	32
Asian	18
Other	49
Native American	0

**Age**
From 65 to 74	776
From 75 to 84	637
85 and over	345
Less than 65	98

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2017

Hypertension	75
High Cholesterol	67
Stroke	11
Ischemic Heart Disease	63
Depression	24
Chronic Kidney Disease	36
Asthma	8
Osteoperosis	7
Atrial Fibrilation	31
Heart Failure	33
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2018 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	25
cardiac procedures	549
doctor visit	1949
hospital care	351
inpatient care	351
nuclear scan	106
stress testing	240
ultrasound (sonogram)	284

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	1053
Female	972

**Ethnicity**
Non-Hispanic White	1826
Black	95
Hispanic	26
Asian	17
Other	61
Native American	0

**Age**
From 65 to 74	866
From 75 to 84	705
85 and over	348
Less than 65	106

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2018

Hypertension	75
High Cholesterol	73
Stroke	10
Ischemic Heart Disease	59
Depression	23
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	8
Atrial Fibrilation	29
Heart Failure	31
Chronic Obstructive Pulmonary Disease	17
Diabetes	34
Dementia	12
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2019 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	21
cardiac procedures	885
cardioversion	18
doctor visit	2133
hospital care	313
inpatient care	313
minimally invasive procedures	24
nuclear scan	192
stress testing	419
ultrasound (sonogram)	445

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	1403
Female	1374

**Ethnicity**
Non-Hispanic White	2475
Black	132
Hispanic	56
Asian	0
Other	90
Native American	0

**Age**
From 65 to 74	1153
From 75 to 84	1007
85 and over	476
Less than 65	141

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	58
Depression	26
Chronic Kidney Disease	37
Asthma	9
Osteoperosis	9
Atrial Fibrilation	28
Heart Failure	30
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	12
Cancer	17

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2020 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	18
cardiac procedures	658
cardioversion	16
doctor visit	1573
hospital care	275
inpatient care	275
minimally invasive procedures	31
nuclear scan	116
stress testing	255
ultrasound (sonogram)	385

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	1214
Female	1074

**Ethnicity**
Non-Hispanic White	2080
Black	89
Hispanic	21
Asian	0
Other	82
Native American	0

**Age**
From 65 to 74	976
From 75 to 84	856
85 and over	380
Less than 65	76

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2020

Hypertension	75
High Cholesterol	74
Stroke	10
Ischemic Heart Disease	59
Depression	25
Chronic Kidney Disease	38
Asthma	8
Osteoperosis	9
Atrial Fibrilation	28
Heart Failure	29
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	12
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2021 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	21
cardiac procedures	422
cardioversion	15
doctor visit	1876
hospital care	270
inpatient care	270
minimally invasive procedures	27
nuclear scan	51
stress testing	141
ultrasound (sonogram)	260

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	1158
Female	1060

**Ethnicity**
Non-Hispanic White	2001
Black	87
Hispanic	23
Asian	0
Other	89
Native American	0

**Age**
From 65 to 74	890
From 75 to 84	884
85 and over	364
Less than 65	80

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	59
Depression	26
Chronic Kidney Disease	39
Asthma	8
Osteoperosis	10
Atrial Fibrilation	31
Heart Failure	29
Chronic Obstructive Pulmonary Disease	16
Diabetes	30
Dementia	14
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA during 2022 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

ambulatory monitoring	29
cardiac procedures	487
cardioversion	18
doctor visit	2443
hospital care	223
inpatient care	223
minimally invasive procedures	14
nuclear scan	39
stress testing	101
ultrasound (sonogram)	357

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	1478
Female	1409

**Ethnicity**
Non-Hispanic White	2594
Black	117
Hispanic	32
Asian	0
Other	118
Native American	0

**Age**
From 65 to 74	1157
From 75 to 84	1137
85 and over	475
Less than 65	118

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	17
Ischemic Heart Disease	53
Depression	25
Chronic Kidney Disease	29
Asthma	11
Osteoperosis	14
Atrial Fibrilation	36
Heart Failure	27
Chronic Obstructive Pulmonary Disease	19
Diabetes	32
Dementia	9
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William Clay Warnick, FACC, MD for Medicare patients.

The highest averages for the top procedures that Dr. William Clay Warnick, FACC, MD treated as a cardiologist in Downingtown, PA were lab tests, cardiac procedures, hospital care and inpatient care.

ambulatory monitoring	26
cardiac procedures	637
cardioversion	16
doctor visit	1801
hospital care	391
inpatient care	390
lab tests	821
minimally invasive procedures	21
nuclear scan	135
nursing home care	16
outpatient care	18
stress testing	295
ultrasound (sonogram)	325
vascular procedures	35

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William Clay Warnick, FACC, MD.

**Gender**
Male	1078
Female	1030

**Ethnicity**
Black / African American	97
Asian / Pacific Islander	6
Non-Hispanic White	1897
Native American / Alaskan Native	0
Hispanic	30
Other	61

**Age**
75 to 84	731
85 and over	388
Less than 65	112
65 to 74	875

Average of Total of Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. William Clay Warnick, FACC, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	68
High Cholesterol	67
Stroke	10
Ischemic Heart Disease	55
Depression	22
Chronic Kidney Disease	31
Asthma	9
Osteoporosis	8
Heart Failure	28
Chronic Obstructive Pulmonary Disease	17
Diabetes	30
Atrial Fibrillation	27
Dementia	11
Cancer	14

Education & Training

Dr. William Clay Warnick, FACC, MD graduated from Drexel University College of Medicine. He completed residency at Hahnemann University Hospital. He is certified by the Board certifications: Internal Medicine, Advanced Heart Failure & Transplant Cardiology and has a state license in Pennsylvania.

Medical School: Drexel University College of Medicine

Residency: Hahnemann University Hospital

Board Certification: Board certifications: Internal Medicine, Advanced Heart Failure & Transplant Cardiology

Licensed In: Pennsylvania

Affiliations & Hospitals

Dr. William Clay Warnick, FACC, MD is associated with these hospitals and organizations:

Cardiology Consultants of Philadelphia (CCP)

Ratings & Reviews

Dr. William Clay Warnick, FACC, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 89 ratings. We collect ratings and reviews of Dr. William Clay Warnick, FACC, MD from all over the web to help you find the right in Downingtown, PA.

Overall Rating

(89 Ratings)

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General Payments

These charts describe general payments received by Dr. William Clay Warnick, FACC, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Novartis Pharmaceuticals Corporation	$494 LEQVIO $252	ENTRESTO $242
Amgen Inc.	$299 Repatha $299
Pfizer Inc.	$275 PAXLOVID $77	VYNDAQEL $69	NURTEC ODT $21	ELIQUIS $19	$90
E.R. Squibb & Sons, L.L.C.	$227 ELIQUIS $209	CAMZYOS $18
Janssen Pharmaceuticals, Inc	$218 XARELTO $218
Other	$804 OPTIMIZER $180	HeartWare HVAD $123	JARDIANCE $84	MULTAQ $74	CardioMEMS $64	Other $280

**Types of Payments**
Food and Beverage	$2,183
Education	$135

Biography

Dr. William Warnick sees patients in West Chester, PA, Kennett Square, PA, and West Grove, PA. His medical specialty is advanced heart failure and transplant cardiology. Patient reviews placed Dr. Warnick at an average of 5.0 stars (out of 5). His hospital/clinic affiliations include Cardiology Consultants of Philadelphia (CCP) and Chester County Hospital. He welcomes new patients at his office inWest Chester, PA as reported by Penn Medicine. After completing medical school at MCP Hahnemann School of Medicine, he performed his residency at Hahnemann University Hospital. He has received professional recognition including the following: Recognized annually in Philadelphia Magazine's Top Docs issue from through.

Select Year:

Dr. William Clay Warnick, FACC, MD

Office Locations

In The News

Noteworthy Medicare Patient Procedures Performed by Dr. William Clay Warnick, FACC, MD in 2023

By Volume:

By Volume:

By Volume:

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. William Clay Warnick, FACC, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. William Clay Warnick, FACC, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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