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Dr. William F. Dresen, MD

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Specializes in: Adult Cardiology

Professional interests include: ambulatory event monitoring (AEM), ambulatory cardiac monitoring, transthoracic echocardiography (TTE), and more.

3310 Sw 34th Street
Ocala, FL 34474

(352) 873-2223

Dr. William F. Dresen, MD is a cardiologist in Ocala, FL specializing in adult cardiology. Dr. William F. Dresen, MD is affiliated with HCA Florida Healthcare, AdventHealth Ocala, HCA Florida Ocala Hospital and HCA Florida West Marion Hospital.

Office Locations

3310 Sw 34th Street
Ocala, FL 34474

(352) 873-2223

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8550 Ne 138th Lane
Lady Lake, FL 32159

(352) 873-2223

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Some issues Dr. William F. Dresen, MD can help you with:

Heart Attack

A heart attack is a serious medical event that happens when the blood supplying oxygen to the heart is cut off, usually because of a blockage in an artery. This results in damage or death of part of the heart muscle. The heart can heal, but like any part of the body that was injured it leaves a scar. This scar tissue does not contract effectively, so the ability of the heart to pump is lowered after a heart attack.

A heart attack, sometimes called a myocardial infarction, can happen without warning. However there are certain factors that raise the risk of heart attack. Some of these are:

Age
Gender (most heart attack sufferers are male)
A family history of heart attacks
Smoking
Obesity
High cholesterol
High blood pressure
Diabetes
Unhealthy lifestyle choices (lack of exercise, poor diet, too much alcohol or stress)

Heart attacks typically feel like pain or pressure in the chest that can radiate out to the back, arm, or jaw. Some other symptoms can include fatigue or weakness, shortness of breath, sweating, and nausea.

Treatment aims to increase blood flow to the heart muscle by opening up blocked blood vessels. Medications are sometimes used to dissolve clots in the arteries. Aspirin and other medications such as Plavix can thin the blood and make clots less likely to form. Dilators can widen blood vessels to make room for more blood to flow. Doctors can also use a procedure called catheterization to look at the blood vessels around the heart directly, place stents, or widen vessels using angioplasty. In extreme cases bypass surgery can be used to help blood flow better. After recovery, it is important to lead a healthy lifestyle and take any prescribed medications in order to protect the heart.

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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL during 2012 were lab tests, blood draw, preventive care and cardiac procedures.

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

abdominal imaging	26
ambulatory monitoring	60
blood draw	1367
cardiac procedures	476
diabetes management	90
doctor visit	1866
hospital care	420
inpatient care	420
lab tests	2996
nuclear scan	98
pelvic imaging	26
preventive care	876
stress testing	201
thoracic (chest) imaging	42
thyroid function tests	253
ultrasound (sonogram)	241
vaccines	84
vascular procedures	26
X-rays	42

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL during 2013 were lab tests, blood draw, preventive care and cardiac procedures.

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

abdominal imaging	32
ambulatory monitoring	47
blood draw	1432
cardiac procedures	404
diabetes management	114
doctor visit	1794
hospital care	255
inpatient care	255
lab tests	2891
nuclear scan	77
pelvic imaging	32
preventive care	763
stress testing	161
thoracic (chest) imaging	56
thyroid function tests	306
ultrasound (sonogram)	240
vaccines	95
vascular procedures	44
X-rays	56

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William F. Dresen, MD.

**Gender**
Male	666
Female	776

**Ethnicity**
Non-Hispanic White	1297
Black	80
Hispanic	48
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	491
From 75 to 84	503
85 and over	309
Less than 65	139

Conditions of Medicare patients treated by Dr. William F. Dresen, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	75
Depression	26
Chronic Kidney Disease	35
Asthma	9
Osteoperosis	9
Atrial Fibrilation	27
Heart Failure	41
Chronic Obstructive Pulmonary Disease	31
Diabetes	44
Dementia	19
Cancer	16

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL during 2014 were lab tests, blood draw, preventive care and cardiac procedures.

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

abdominal imaging	25
ambulatory monitoring	35
blood draw	1283
cardiac procedures	349
diabetes management	79
doctor visit	1312
hospital care	169
inpatient care	169
lab tests	2395
nuclear scan	68
pelvic imaging	25
preventive care	468
stress testing	134
thoracic (chest) imaging	52
thyroid function tests	241
ultrasound (sonogram)	205
vaccines	87
vascular procedures	42
X-rays	52

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William F. Dresen, MD.

**Gender**
Male	460
Female	520

**Ethnicity**
Non-Hispanic White	899
Black	40
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	347
From 75 to 84	335
85 and over	224
Less than 65	74

Conditions of Medicare patients treated by Dr. William F. Dresen, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	75
Depression	24
Chronic Kidney Disease	35
Asthma	11
Osteoperosis	9
Atrial Fibrilation	28
Heart Failure	38
Chronic Obstructive Pulmonary Disease	30
Diabetes	40
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL during 2015 were lab tests, blood draw, preventive care and cardiac procedures.

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

abdominal imaging	14
ambulatory monitoring	58
blood draw	1195
cardiac procedures	422
diabetes management	60
doctor visit	1027
hospital care	211
inpatient care	211
lab tests	2470
nuclear scan	89
pelvic imaging	14
preventive care	432
stress testing	181
thoracic (chest) imaging	51
thyroid function tests	310
ultrasound (sonogram)	197
vaccines	66
vascular procedures	30
X-rays	51

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William F. Dresen, MD.

**Gender**
Male	1164
Female	1340

**Ethnicity**
Non-Hispanic White	2234
Black	152
Hispanic	70
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	806
From 75 to 84	914
85 and over	538
Less than 65	246

Conditions of Medicare patients treated by Dr. William F. Dresen, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	75
Depression	28
Chronic Kidney Disease	39
Asthma	20
Osteoperosis	10
Atrial Fibrilation	26
Heart Failure	41
Chronic Obstructive Pulmonary Disease	32
Diabetes	42
Dementia	21
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL during 2016 were lab tests, blood draw, cardiac procedures and preventive care.

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

abdominal imaging	20
ambulatory monitoring	53
blood draw	1040
cardiac procedures	436
diabetes management	57
doctor visit	929
hospital care	235
inpatient care	235
lab tests	2258
nuclear scan	92
pelvic imaging	20
preventive care	405
stress testing	188
thoracic (chest) imaging	51
thyroid function tests	305
ultrasound (sonogram)	215
vaccines	35
vascular procedures	20
X-rays	51

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William F. Dresen, MD.

**Gender**
Male	271
Female	291

**Ethnicity**
Non-Hispanic White	532
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	186
From 75 to 84	229
85 and over	135
Less than 65	12

Conditions of Medicare patients treated by Dr. William F. Dresen, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	75
Depression	15
Chronic Kidney Disease	35
Asthma	26
Osteoperosis	9
Atrial Fibrilation	28
Heart Failure	32
Chronic Obstructive Pulmonary Disease	23
Diabetes	38
Dementia	16
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL during 2017 were lab tests, blood draw, preventive care and cardiac procedures.

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

abdominal imaging	13
ambulatory monitoring	32
blood draw	1029
cardiac procedures	383
diabetes management	65
doctor visit	779
hospital care	191
inpatient care	191
lab tests	2371
nuclear scan	88
pelvic imaging	13
preventive care	438
stress testing	180
thoracic (chest) imaging	29
thyroid function tests	323
ultrasound (sonogram)	199
vaccines	17
vascular procedures	28
X-rays	29

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William F. Dresen, MD.

**Gender**
Male	267
Female	298

**Ethnicity**
Non-Hispanic White	536
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	186
From 75 to 84	223
85 and over	142
Less than 65	14

Conditions of Medicare patients treated by Dr. William F. Dresen, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	75
Depression	19
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	10
Atrial Fibrilation	25
Heart Failure	31
Chronic Obstructive Pulmonary Disease	23
Diabetes	38
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL during 2018 were lab tests, blood draw, cardiac procedures and preventive care.

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

abdominal imaging	12
ambulatory monitoring	34
blood draw	841
cardiac procedures	442
diabetes management	54
doctor visit	949
hospital care	214
inpatient care	214
lab tests	1444
nuclear scan	96
pelvic imaging	12
preventive care	274
stress testing	202
thyroid function tests	142
ultrasound (sonogram)	232
vascular procedures	39

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William F. Dresen, MD.

**Gender**
Male	265
Female	284

**Ethnicity**
Non-Hispanic White	513
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	228
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William F. Dresen, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	72
Depression	20
Chronic Kidney Disease	41
Asthma	7
Osteoperosis	9
Atrial Fibrilation	24
Heart Failure	34
Chronic Obstructive Pulmonary Disease	21
Diabetes	38
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL during 2019 were lab tests, blood draw, cardiac procedures and preventive care.

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

abdominal imaging	11
ambulatory monitoring	52
blood draw	827
cardiac procedures	383
diabetes management	88
doctor visit	1327
hospital care	232
inpatient care	232
lab tests	1703
nuclear scan	70
pelvic imaging	11
preventive care	325
stress testing	143
thyroid function tests	163
ultrasound (sonogram)	199
vascular procedures	11

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William F. Dresen, MD.

**Gender**
Male	266
Female	263

**Ethnicity**
Non-Hispanic White	501
Black	0
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	164
From 75 to 84	237
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William F. Dresen, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	75
Depression	18
Chronic Kidney Disease	41
Asthma	7
Osteoperosis	8
Atrial Fibrilation	28
Heart Failure	35
Chronic Obstructive Pulmonary Disease	24
Diabetes	38
Dementia	16
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL during 2020 were lab tests, blood draw, cardiac procedures and preventive care.

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

ambulatory monitoring	42
blood draw	610
cardiac procedures	303
diabetes management	74
doctor visit	1072
hospital care	119
inpatient care	119
lab tests	1266
nuclear scan	47
preventive care	236
stress testing	99
thyroid function tests	227
ultrasound (sonogram)	162

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William F. Dresen, MD.

**Gender**
Male	234
Female	237

**Ethnicity**
Non-Hispanic White	442
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	194
85 and over	119
Less than 65	11

Conditions of Medicare patients treated by Dr. William F. Dresen, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	73
Depression	18
Chronic Kidney Disease	41
Asthma	6
Osteoperosis	8
Atrial Fibrilation	24
Heart Failure	34
Chronic Obstructive Pulmonary Disease	21
Diabetes	39
Dementia	17
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL during 2021 were lab tests, blood draw, cardiac procedures and preventive care.

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

ambulatory monitoring	17
blood draw	311
cardiac procedures	237
diabetes management	23
doctor visit	670
hospital care	64
inpatient care	64
lab tests	532
nuclear scan	57
preventive care	116
stress testing	115
thyroid function tests	82
ultrasound (sonogram)	105

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William F. Dresen, MD.

**Gender**
Male	188
Female	184

**Ethnicity**
Non-Hispanic White	352
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	114
From 75 to 84	155
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William F. Dresen, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	75
Depression	20
Chronic Kidney Disease	42
Asthma	6
Osteoperosis	9
Atrial Fibrilation	28
Heart Failure	32
Chronic Obstructive Pulmonary Disease	23
Diabetes	38
Dementia	17
Cancer	11

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2021

Volume of procedures performed by Dr. William F. Dresen, MD for Medicare patients.

The highest averages for the top procedures that Dr. William F. Dresen, MD treated as a cardiologist in Ocala, FL were lab tests, blood draw, preventive care and cardiac procedures.

abdominal imaging	19
ambulatory monitoring	43
blood draw	993
cardiac procedures	383
diabetes management	70
doctor visit	1172
hospital care	211
inpatient care	211
lab tests	2032
nuclear scan	78
pelvic imaging	19
preventive care	433
stress testing	160
thoracic (chest) imaging	46
thyroid function tests	235
ultrasound (sonogram)	199
vaccines	64
vascular procedures	30
X-rays	46

Average Medicare Patient Data From 2012 - 2021

Information about Medicare patients treated by Dr. William F. Dresen, MD.

**Gender**
Male	378
Female	419

**Ethnicity**
Black / African American	32
Asian / Pacific Islander	0
Non-Hispanic White	730
Hispanic	14
Native American / Alaskan Native	0
Other	1

**Age**
75 to 84	301
85 and over	146
Less than 65	49
65 to 74	262

Average of Total of Conditions of Medicare patients treated by Dr. William F. Dresen, MD From 2012 - 2021

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

Hypertension	67
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	67
Depression	18
Chronic Kidney Disease	34
Asthma	9
Osteoporosis	8
Heart Failure	31
Chronic Obstructive Pulmonary Disease	22
Diabetes	35
Atrial Fibrillation	23
Cancer	12
Dementia	15

Education & Training

He completed residency at University of Louisville Affiliated Hospitals. He has a state license in Florida.

Residency: University of Louisville Affiliated Hospitals

Licensed In: Florida

Ratings & Reviews

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General Payments

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

**Payments by Company**
Medtronic Vascular, Inc.	$2,410 Micra $1,062	Claria MRI $286	Percepta $176	Implantable Cardioverter Defibrillators - ICDs $127	Ablation $105	Other $654
Astellas Pharma US Inc	$615 Lexiscan $282	$333
Cook Medical LLC	$547 Cook Medical Lead Management - Lead Extraction $547
Janssen Pharmaceuticals, Inc	$431 XARELTO $412	INVOKANA $20
Boehringer Ingelheim Pharmaceuticals, Inc.	$412 Pradaxa $286	JARDIANCE $15	$111
Other	$2,356 ELIQUIS $316	ENTRESTO $299	Bradycardia products $204	LifeVest $181	BRILINTA $168	Other $1,188

**Types of Payments**
Food and Beverage	$4,917
Travel and Lodging	$1,505
Education	$349

Biography

Dr. William Dresen's area of specialization is adult cardiology. He trained at a hospital affiliated with the University of Louisville for residency. Dr. Dresen's areas of expertise include myocarditis, pericarditis, and cardioversion. His professional affiliations include AdventHealth Ocala and HCA Florida Healthcare.