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Dr. Mark Liwanag, DO, MPH

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(Mark Liwanag, DO)

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Specializes in: Cardiac Electrophysiology (Heart Rhythm)

Nova Southeastern University, College of Osteopathic Medicine (2014)

Professional interests include: arrhythmias (irregular heartbeats), pacemaker, ablation, and more.

8 Hospital Center Boulevard Suite 150
Hilton Head Island, SC 29926

(854) 235-2730

Dr. Mark Liwanag, DO, MPH is a cardiac electrophysiologist in Hilton Head Island, SC specializing in cardiac electrophysiology (heart rhythm). He graduated from Nova Southeastern University, College of Osteopathic Medicine in 2014 and has 12 years of experience. Dr. Mark Liwanag, DO, MPH is affiliated with Novant Health and Novant Health Heart & Vascular - Physicians Plaza (Electrophysiology).

Office Locations

8 Hospital Center Boulevard Suite 150
Hilton Head Island, SC 29926

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Noteworthy Medicare Patient Procedures Performed by Dr. Mark Liwanag, DO, MPH in 2024

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

Top 5%

By Affordability:

ambulatory event monitoring

cardiac event detection monitoring

In 2024, Dr. Mark Liwanag, DO, MPH had a list price for ambulatory event monitoring (AEM), and cardiac event detection monitoring that was lower than the list prices billed to Medicare by 95% of providers in related specialties within South Carolina. 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.

Top 10%

By Affordability:

transesophageal echocardiography

In 2024, Dr. Mark Liwanag, DO, MPH had a list price for transesophageal echocardiography (TEE) that was lower than the list prices billed to Medicare by 90% of providers in related specialties within South Carolina. 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.

Top 25%

By Volume:

cardioversion

elective external cardioversion

inpatient hospital care

By Affordability:

cardiac device implantation

cardiac imaging

cardiac pacing procedures

elective cardioversion

elective external cardioversion

electrocardiogram

external cardioversion

inpatient hospital care

minimally invasive surgery

pacemaker implantation

pacemaker replacement

pacemaker system replacement

permanent pacemaker implantation

permanent transvenous pacemaker implantation

permanent transvenous pacemaker replacement

ultrasound

In 2012, among providers in related specialties within South Carolina, Dr. Mark Liwanag, DO, MPH performed more cardioversion, elective external cardioversion, and inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of them and he also had a list price for cardiac device implantation, cardiac imaging, cardiac pacing procedures, cardiac procedures, cardioversion, device implantation, echocardiogram (echo), elective cardioversion, elective external cardioversion, electrocardiogram (EKG), external cardioversion, heart surgery, hospital care, implant surgery, inpatient care, inpatient hospital care (for patient admitted to hospital), minimally invasive surgery, pacemaker implantation, pacemaker replacement, pacemaker system replacement, permanent pacemaker implantation, permanent transvenous pacemaker implantation, permanent transvenous pacemaker replacement, and ultrasound (sonogram) 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

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Liwanag, DO, MPH.

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

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Liwanag, DO, MPH treated as a cardiac electrophysiologist in Hilton Head Island, SC during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Liwanag, DO, MPH for Medicare patients.

hospital care	56
inpatient care	56

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Liwanag, DO, MPH.

**Gender**
Male	20
Female	30

**Age**
From 65 to 74	13
From 75 to 84	20
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark Liwanag, DO, MPH in 2019

Hypertension	75
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	68
Depression	48
Chronic Kidney Disease	50
Asthma	0
Osteoperosis	0
Atrial Fibrilation	30
Heart Failure	46
Chronic Obstructive Pulmonary Disease	58
Diabetes	50
Dementia	30
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Liwanag, DO, MPH treated as a cardiac electrophysiologist in Hilton Head Island, SC during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Liwanag, DO, MPH for Medicare patients.

hospital care	41
inpatient care	41

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Liwanag, DO, MPH.

**Gender**
Male	19
Female	16

**Age**
From 65 to 74	13
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark Liwanag, DO, MPH in 2020

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	63
Depression	49
Chronic Kidney Disease	69
Asthma	0
Osteoperosis	0
Atrial Fibrilation	43
Heart Failure	74
Chronic Obstructive Pulmonary Disease	51
Diabetes	60
Dementia	37
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Liwanag, DO, MPH treated as a cardiac electrophysiologist in Hilton Head Island, SC during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Liwanag, DO, MPH for Medicare patients.

hospital care	54
inpatient care	54

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Liwanag, DO, MPH.

**Gender**
Male	26
Female	25

**Ethnicity**
Non-Hispanic White	35
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	24
From 75 to 84	13
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark Liwanag, DO, MPH in 2021

Hypertension	75
High Cholesterol	75
Stroke	31
Ischemic Heart Disease	53
Depression	31
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	41
Heart Failure	55
Chronic Obstructive Pulmonary Disease	31
Diabetes	67
Dementia	29
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Liwanag, DO, MPH treated as a cardiac electrophysiologist in Hilton Head Island, SC during 2022 were hospital care, inpatient care, ultrasound (sonogram) and minimally invasive procedures.

Volume of procedures performed by Dr. Mark Liwanag, DO, MPH for Medicare patients.

cardiac procedures	13
doctor visit	126
hospital care	130
inpatient care	130
minimally invasive procedures	13
ultrasound (sonogram)	13

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Liwanag, DO, MPH.

**Gender**
Male	313
Female	201

**Ethnicity**
Non-Hispanic White	381
Black	0
Hispanic	30
Asian	0
Other	0
Native American	89

**Age**
From 65 to 74	185
From 75 to 84	220
85 and over	84
Less than 65	25

Conditions of Medicare patients treated by Dr. Mark Liwanag, DO, MPH in 2022

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	43
Depression	17
Chronic Kidney Disease	31
Asthma	11
Osteoperosis	11
Atrial Fibrilation	58
Heart Failure	42
Chronic Obstructive Pulmonary Disease	19
Diabetes	36
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mark Liwanag, DO, MPH treated as a cardiac electrophysiologist in Hilton Head Island, SC during 2023 were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

Volume of procedures performed by Dr. Mark Liwanag, DO, MPH for Medicare patients.

ablation	43
cardiac procedures	107
cardioversion	28
catheterization	43
diagnostic procedures	43
doctor visit	431
hospital care	368
implant surgery	33
inpatient care	368
minimally invasive procedures	150
ultrasound (sonogram)	31

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Liwanag, DO, MPH.

**Gender**
Male	635
Female	480

**Ethnicity**
Non-Hispanic White	821
Black	0
Hispanic	53
Asian	0
Other	0
Native American	194

**Age**
From 65 to 74	405
From 75 to 84	463
85 and over	204
Less than 65	43

Conditions of Medicare patients treated by Dr. Mark Liwanag, DO, MPH in 2023

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	42
Depression	17
Chronic Kidney Disease	31
Asthma	10
Osteoperosis	13
Atrial Fibrilation	61
Heart Failure	40
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mark Liwanag, DO, MPH treated as a cardiac electrophysiologist in Hilton Head Island, SC during 2024 were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

Volume of procedures performed by Dr. Mark Liwanag, DO, MPH for Medicare patients.

ablation	46
ambulatory monitoring	14
cardiac procedures	114
cardioversion	42
catheterization	46
diagnostic procedures	46
doctor visit	362
hospital care	317
implant surgery	23
inpatient care	317
minimally invasive procedures	146
ultrasound (sonogram)	31

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Liwanag, DO, MPH.

**Gender**
Male	720
Female	548

**Ethnicity**
Non-Hispanic White	921
Black	0
Hispanic	65
Asian	0
Other	47
Native American	221

**Age**
From 65 to 74	425
From 75 to 84	518
85 and over	274
Less than 65	51

Conditions of Medicare patients treated by Dr. Mark Liwanag, DO, MPH in 2024

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	43
Depression	16
Chronic Kidney Disease	29
Asthma	11
Osteoperosis	13
Atrial Fibrilation	62
Heart Failure	38
Chronic Obstructive Pulmonary Disease	18
Diabetes	36
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2016 - 2024

Volume of procedures performed by Dr. Mark Liwanag, DO, MPH for Medicare patients.

The highest averages for the top procedures that Dr. Mark Liwanag, DO, MPH treated as a cardiac electrophysiologist in Hilton Head Island, SC were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

ablation	44
ambulatory monitoring	14
cardiac procedures	78
cardioversion	35
catheterization	44
diagnostic procedures	44
doctor visit	306
hospital care	161
implant surgery	28
inpatient care	161
minimally invasive procedures	103
ultrasound (sonogram)	25

Average Medicare Patient Data From 2016 - 2024

Information about Medicare patients treated by Dr. Mark Liwanag, DO, MPH.

**Gender**
Male	247
Female	185

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	309
Hispanic	21
Native American / Alaskan Native	72
Other	6

**Age**
75 to 84	176
85 and over	80
Less than 65	17
65 to 74	152

Average of Total of Conditions of Medicare patients treated by Dr. Mark Liwanag, DO, MPH From 2016 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Mark Liwanag, DO, MPH treated were hypertension, high cholesterol, ischemic heart disease and atrial fibrilation.

Hypertension	64
High Cholesterol	62
Stroke	11
Ischemic Heart Disease	44
Depression	25
Chronic Kidney Disease	40
Asthma	4
Osteoporosis	5
Heart Failure	42
Chronic Obstructive Pulmonary Disease	28
Diabetes	40
Atrial Fibrillation	42
Cancer	5
Dementia	17

Education & Training

Dr. Mark Liwanag, DO, MPH graduated from Nova Southeastern University, College of Osteopathic Medicine in 2014. He is certified by the Board certifications: Cardiovascular Disease and has a state license in Arizona.

Medical School: Nova Southeastern University, College of Osteopathic Medicine (2014)

Board Certification: Board certifications: Cardiovascular Disease

Licensed In: Arizona

Affiliations & Hospitals

Dr. Mark Liwanag, DO, MPH is associated with these hospitals and organizations:

Novant Health

Novant Health Heart & Vascular - Physicians Plaza (Electrophysiology)

Ratings & Reviews

Dr. Mark Liwanag, DO, MPH has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Mark Liwanag, DO, MPH from all over the web to help you find the right in Hilton Head Island, SC.

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General Payments

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

**Payments by Company**
Medtronic, Inc.	$9,857 Micra $2,903	Arctic Front $1,644	ARCTIC FRONT ADVANCE $44	$5,266
Abbott Laboratories	$4,761 ENSITE PRECISION $1,566	Ensite $606	Cardiac Mapping System $413	Ensite Cardiac Mapping System $335	Quadra Allure MP RF CRT Pacemkr $322	Other $1,518
Boston Scientific Corporation	$2,676 WATCHMAN Access System $124	GENERAL - THERAPIES $112	Emblem S-ICD $101	EMBLEM MRI S-ICD $77	RESONATE EL ICD VR $71	Other $2,190
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$975 LifeVest $975
Amgen Inc.	$521 Repatha $296	Prolia $93	Corlanor $15	$116
Other	$5,485 ENTRESTO $509	ELIQUIS $471	XARELTO $308	Cardiva VASCADE MVP VVCS 6-12F $294	None $249	Other $3,653

**Types of Payments**
Food and Beverage	$11,470
Travel and Lodging	$6,622
Grant	$5,000
Education	$1,057
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$125