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Dr. Maribel Hernandez, MD

(183 Ratings)

Specializes in: Cardiac Electrophysiology (Heart Rhythm) and Adult Cardiology

Stanford University School of Medicine (1985)

Professional interests include: peripheral vascular disease, cardiac imaging, angina, and more.

100 East Lancaster Avenue Heart Pavilion, Mezzanine Level
Wynnewood, PA 19096

(484) 476-1000

Dr. Maribel Hernandez, MD is a cardiac electrophysiologist in Wynnewood, PA specializing in cardiac electrophysiology (heart rhythm) and adult cardiology. She graduated from Stanford University School of Medicine in 1985 and has 41 years of experience. Dr. Maribel Hernandez, MD is affiliated with Main Line Health and Main Line HealthCare (MLHC).

Office Locations

100 East Lancaster Avenue Heart Pavilion, Mezzanine Level
Wynnewood, PA 19096

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Some issues Dr. Maribel Hernandez, MD can help you with:

Coronary Artery Disease

Coronary artery disease (CAD) is the most common type of heart disease. It happens when the blood vessels carrying blood to the heart, called coronary arteries, narrow and harden. This occurs when cholesterol, a type of fat found in the blood, builds up to form plaque, which sticks to the inner walls of the arteries. As plaque accumulates, less blood can flow through the arteries, which may lead to the following:

Angina, which is chest pain that occurs when the heart does not receive enough blood flow.
Heart attack, which happens if the arteries leading to the heart are completely blocked.
Arrhythmia, or irregular heartbeat, which can develop if the heart does not have enough blood supply.
Heart failure, which may occur if a heart attack damages the heart and it becomes too weak to pump enough blood to the rest of the body.

Certain factors may increase risk for the disease, like smoking, lack of exercise, being overweight, high cholesterol, high blood pressure, and diabetes. CAD tends to develop over decades, so it can go undetected until it has become quite severe. A diagnosis may be established using such tests as:

Electrocardiogram (ECG), which records the heart's electrical activity over a period of time. ECGs can detect whether there is enough blood flow to the heart or if a heart attack has occurred.
Echocardiogram (echo), which creates images of the heart using sound waves. Echos can show whether the heart is able to pump blood normally.
Stress tests, where an ECG or echo is combined with exercise, like riding a stationary bike or walking on a treadmill. This test is done to find out if the heart can function properly while performing a strenuous activity.

Treatments for the disease include medications such as vasodilators, like nitroglycerin, which dilates (widens) the coronary arteries. CAD may also be treated by a procedure called angioplasty with stent placement, where a balloon is inflated inside a diseased artery to flatten the plaque deposits against the artery walls, creating more room for blood to flow.

In some severe cases of the disease, multiple arteries may be blocked, and an open heart surgery called coronary artery bypass surgery may be necessary. This operation transplants a vessel from another part of the body to form a graft that goes past the narrowed arteries, thus enabling blood to flow around those arteries.

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.

In The News

“Cardiologist Dr. Maribel Hernandez and ob/gyn Dr. Nicole Salva from Main Line Health were among the panel of experts who led discussions on various topics related to women's heart health.”—"'Healthy Women, Strong Hearts (Mujeres Saludables, Corazones Fuertes)' event raises awareness about women's heart health", The Times Herald, April 2024

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2013 were hospital care, inpatient care, cardiac procedures and cardioversion.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	12
cardiac procedures	24
cardioversion	22
doctor visit	691
hospital care	230
implant surgery	12
inpatient care	230
minimally invasive procedures	12

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	785
Female	1060

**Ethnicity**
Non-Hispanic White	1296
Black	504
Hispanic	16
Asian	16
Other	13
Native American	0

**Age**
From 65 to 74	558
From 75 to 84	593
85 and over	465
Less than 65	229

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2013

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2013 were hypertension, high cholesterol, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	73
Stroke	13
Ischemic Heart Disease	64
Depression	28
Chronic Kidney Disease	43
Asthma	13
Osteoperosis	13
Atrial Fibrilation	37
Heart Failure	47
Chronic Obstructive Pulmonary Disease	24
Diabetes	38
Dementia	22
Cancer	18

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2014 were hospital care, inpatient care, cardioversion and cardiac procedures.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	25
cardiac procedures	45
cardioversion	46
doctor visit	746
hospital care	232
implant surgery	20
inpatient care	232
minimally invasive procedures	20

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	788
Female	972

**Ethnicity**
Non-Hispanic White	1252
Black	457
Hispanic	14
Asian	15
Other	22
Native American	0

**Age**
From 65 to 74	511
From 75 to 84	591
85 and over	454
Less than 65	204

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2014

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2014 were hypertension, high cholesterol, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	73
Stroke	12
Ischemic Heart Disease	65
Depression	27
Chronic Kidney Disease	43
Asthma	13
Osteoperosis	12
Atrial Fibrilation	41
Heart Failure	49
Chronic Obstructive Pulmonary Disease	23
Diabetes	38
Dementia	21
Cancer	18

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2015 were hospital care, inpatient care, cardiac procedures and cardioversion.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	47
cardiac procedures	77
cardioversion	51
doctor visit	765
hospital care	297
implant surgery	30
inpatient care	297
minimally invasive procedures	30

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	1646
Female	2034

**Ethnicity**
Non-Hispanic White	2518
Black	1026
Hispanic	24
Asian	52
Other	60
Native American	0

**Age**
From 65 to 74	1130
From 75 to 84	1224
85 and over	918
Less than 65	408

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2015

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2015 were hypertension, high cholesterol, ischemic heart disease and heart failure.

Hypertension	75
High Cholesterol	74
Stroke	14
Ischemic Heart Disease	64
Depression	26
Chronic Kidney Disease	46
Asthma	21
Osteoperosis	12
Atrial Fibrilation	42
Heart Failure	51
Chronic Obstructive Pulmonary Disease	24
Diabetes	40
Dementia	21
Cancer	18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2016 were hospital care, inpatient care, cardiac procedures and ambulatory monitoring.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	64
cardiac procedures	82
cardioversion	39
doctor visit	829
hospital care	240
implant surgery	18
inpatient care	240
minimally invasive procedures	18

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	830
Female	1087

**Ethnicity**
Non-Hispanic White	1364
Black	484
Hispanic	14
Asian	21
Other	34
Native American	0

**Age**
From 65 to 74	653
From 75 to 84	580
85 and over	491
Less than 65	193

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2016

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2016 were high cholesterol, hypertension, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	63
Depression	28
Chronic Kidney Disease	50
Asthma	30
Osteoperosis	12
Atrial Fibrilation	41
Heart Failure	50
Chronic Obstructive Pulmonary Disease	25
Diabetes	39
Dementia	26
Cancer	18

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2017 were hospital care, inpatient care, cardiac procedures and ambulatory monitoring.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	87
cardiac procedures	111
cardioversion	59
doctor visit	792
hospital care	249
implant surgery	24
inpatient care	249
minimally invasive procedures	24

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	805
Female	918

**Ethnicity**
Non-Hispanic White	1273
Black	366
Hispanic	19
Asian	19
Other	46
Native American	0

**Age**
From 65 to 74	586
From 75 to 84	575
85 and over	407
Less than 65	155

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2017

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2017 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	73
Stroke	12
Ischemic Heart Disease	67
Depression	32
Chronic Kidney Disease	52
Asthma	14
Osteoperosis	11
Atrial Fibrilation	43
Heart Failure	48
Chronic Obstructive Pulmonary Disease	23
Diabetes	38
Dementia	25
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2018 were hospital care, inpatient care, cardioversion and cardiac procedures.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	27
cardiac procedures	27
cardioversion	32
doctor visit	703
hospital care	172
inpatient care	172

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	662
Female	805

**Ethnicity**
Non-Hispanic White	1059
Black	339
Hispanic	14
Asian	17
Other	38
Native American	0

**Age**
From 65 to 74	487
From 75 to 84	490
85 and over	361
Less than 65	129

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2018

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2018 were high cholesterol, hypertension, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	64
Depression	31
Chronic Kidney Disease	51
Asthma	13
Osteoperosis	13
Atrial Fibrilation	43
Heart Failure	47
Chronic Obstructive Pulmonary Disease	21
Diabetes	38
Dementia	24
Cancer	17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2019 were hospital care, inpatient care, cardioversion and cardiac procedures.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	26
cardiac procedures	26
cardioversion	36
doctor visit	737
hospital care	128
inpatient care	128

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	522
Female	693

**Ethnicity**
Non-Hispanic White	896
Black	260
Hispanic	11
Asian	12
Other	36
Native American	0

**Age**
From 65 to 74	406
From 75 to 84	426
85 and over	284
Less than 65	99

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2019

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2019 were high cholesterol, hypertension, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	63
Depression	34
Chronic Kidney Disease	51
Asthma	12
Osteoperosis	14
Atrial Fibrilation	45
Heart Failure	45
Chronic Obstructive Pulmonary Disease	22
Diabetes	37
Dementia	23
Cancer	17

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2020 were hospital care, inpatient care, cardiac procedures and ambulatory monitoring.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	48
cardiac procedures	48
cardioversion	25
doctor visit	565
hospital care	81
inpatient care	81

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	361
Female	492

**Ethnicity**
Non-Hispanic White	666
Black	146
Hispanic	0
Asian	0
Other	26
Native American	0

**Age**
From 65 to 74	297
From 75 to 84	289
85 and over	208
Less than 65	59

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2020

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2020 were high cholesterol, hypertension, ischemic heart disease and atrial fibrilation.

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	60
Depression	29
Chronic Kidney Disease	46
Asthma	12
Osteoperosis	14
Atrial Fibrilation	48
Heart Failure	44
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	21
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2021 were cardiac procedures, ambulatory monitoring, hospital care and inpatient care.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	73
cardiac procedures	73
cardioversion	19
doctor visit	747
hospital care	58
inpatient care	58

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	454
Female	629

**Ethnicity**
Non-Hispanic White	843
Black	194
Hispanic	0
Asian	0
Other	26
Native American	0

**Age**
From 65 to 74	364
From 75 to 84	403
85 and over	242
Less than 65	74

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2021

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2021 were high cholesterol, hypertension, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	60
Depression	28
Chronic Kidney Disease	47
Asthma	12
Osteoperosis	13
Atrial Fibrilation	44
Heart Failure	41
Chronic Obstructive Pulmonary Disease	16
Diabetes	29
Dementia	18
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2022 were cardiac procedures, ambulatory monitoring, hospital care and inpatient care.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	59
cardiac procedures	59
cardioversion	16
doctor visit	740
hospital care	17
inpatient care	17

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	494
Female	687

**Ethnicity**
Non-Hispanic White	890
Black	215
Hispanic	16
Asian	18
Other	42
Native American	0

**Age**
From 65 to 74	427
From 75 to 84	450
85 and over	227
Less than 65	77

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2022

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2022 were high cholesterol, hypertension, ischemic heart disease and atrial fibrilation.

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	56
Depression	27
Chronic Kidney Disease	39
Asthma	13
Osteoperosis	19
Atrial Fibrilation	51
Heart Failure	39
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	13
Cancer	22

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA during 2023 were cardiac procedures, ambulatory monitoring and cardioversion.

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

ambulatory monitoring	29
cardiac procedures	29
cardioversion	15
doctor visit	771

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Male	488
Female	705

**Ethnicity**
Non-Hispanic White	935
Black	188
Hispanic	16
Asian	15
Other	39
Native American	0

**Age**
From 65 to 74	416
From 75 to 84	468
85 and over	250
Less than 65	59

Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD in 2023

The most common conditions of Medicare patients that Dr. Maribel Hernandez, MD treated during 2023 were high cholesterol, hypertension, ischemic heart disease and atrial fibrilation.

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	55
Depression	25
Chronic Kidney Disease	39
Asthma	15
Osteoperosis	20
Atrial Fibrilation	52
Heart Failure	39
Chronic Obstructive Pulmonary Disease	20
Diabetes	32
Dementia	11
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Maribel Hernandez, MD for Medicare patients.

The highest averages for the top procedures that Dr. Maribel Hernandez, MD treated as a cardiac electrophysiologist in Wynnewood, PA were hospital care, inpatient care, cardiac procedures and ambulatory monitoring.

ambulatory monitoring	45
cardiac procedures	54
cardioversion	32
doctor visit	735
hospital care	170
implant surgery	20
inpatient care	170
minimally invasive procedures	20

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Maribel Hernandez, MD.

**Gender**
Female	916
Male	712

**Ethnicity**
Black / African American	379
Asian / Pacific Islander	16
Non-Hispanic White	1181
Hispanic	13
Native American / Alaskan Native	0
Other	34

**Age**
85 and over	391
75 to 84	553
Less than 65	153
65 to 74	530

Average of Total of Conditions of Medicare patients treated by Dr. Maribel Hernandez, MD From 2013 - 2023

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

Hypertension	75
High Cholesterol	74
Stroke	13
Ischemic Heart Disease	61
Depression	28
Chronic Kidney Disease	46
Asthma	15
Osteoporosis	13
Heart Failure	45
Chronic Obstructive Pulmonary Disease	21
Diabetes	35
Atrial Fibrillation	44
Cancer	18
Dementia	20

Education & Training

Dr. Maribel Hernandez, MD graduated from Stanford University School of Medicine in 1985. She completed residency at Beth Israel Deaconess Medical Center. She is certified by the American Board of Cardiovascular Disease and Clinical Electrophysiology and has a state license in Pennsylvania.

Medical School: Stanford University School of Medicine (1985)

Residency: Beth Israel Deaconess Medical Center

Board Certification: American Board of Cardiovascular Disease and Clinical Electrophysiology

Licensed In: Pennsylvania

Affiliations & Hospitals

Dr. Maribel Hernandez, MD is associated with these hospitals and organizations:

Main Line Health

Main Line HealthCare (MLHC)

Ratings & Reviews

Dr. Maribel Hernandez, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 183 ratings. We collect ratings and reviews of Dr. Maribel Hernandez, MD from all over the web to help you find the right in Wynnewood, PA.

Overall Rating

(183 Ratings)

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General Payments

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

**Payments by Company**
St. Jude Medical, Inc.	$6,045 Electrophysiology $3,695	Electrophysiology (EP) $1,907	CRM $153	Ensite $85	Microny ll SR plus Pacemaker $74	Other $131
Medtronic Vascular, Inc.	$5,408 Pacemakers $1,735	Cardiac Resynchronization Therapy - CRT $326	Visia AF $165	Implantable Cardioverter Defibrillators - ICDs $160	Advisa $102	Other $2,920
BIOTRONIK INC.	$4,069 Bradycardia products $922	Passeo $892	Solia $832	Setrox $509	BioMonitor 2 $250	Other $664
SANOFI-AVENTIS U.S. LLC	$2,341 MULTAQ $16	$2,326
Janssen Pharmaceuticals, Inc	$764 XARELTO $718	INVOKANA $45
Other	$2,517 ELIQUIS $883	NORTHERA $212	Artis icono floor $154	Micra $127	WATCHMAN $113	Other $1,027

**Types of Payments**
Food and Beverage	$8,500
Travel and Lodging	$7,240
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$4,603
Education	$802

Biography

Dr. Maribel Hernandez is a specialist in adult cardiology and cardiac electrophysiology (heart rhythm) in Wynnewood, PA. Patients gave Dr. Hernandez an average rating of 5.0 stars (out of 5). Her clinical interests include angina, ventricular tachycardia, and syncope (fainting). She is affiliated with Main Line HealthCare (MLHC). Dr. Hernandez attended medical school at Stanford University School of Medicine. She trained at Beth Israel Deaconess Medical Center for her residency. She is conversant in Spanish.