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Home > DE Providers > Cardiac Surgeons

Dr. Daniel Marelli, MD

Accepting New Patients

(44 Ratings)

Specializes in: Cardiac Surgery, Vascular Surgery and Thoracic Surgery

540 S. Governors Avenue Suite 101A
Dover, DE 19901

(302) 744-7980

Dr. Daniel Marelli, MD is a cardiac surgeon in Dover, DE specializing in cardiac surgery, vascular surgery and thoracic surgery. Dr. Daniel Marelli, MD is affiliated with Bayhealth and BAYHEALTH MEDICAL CENTER, INC.

Office Locations

540 S. Governors Avenue Suite 101A
Dover, DE 19901

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Bayhealth

100 Wellness Way
Milford, DE 19963

(302) 744-7980

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540 S. Governors Avenue Suite 101a
Dover, DE 19904

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In The News

“"The operation went exceptionally well, and the artificial heart is functioning beautifully," said Dr. Hillel Laks, chief of cardiothoracic surgery at the UCLA School of Medicine, who performed the...”—"Man in his 70s receives an artificial heart", Desert News, October 2001

“It is about 5 p.m., and UCLA surgeon Daniel Marelli's pager is going off, alerting him that a donor heart or lung has become available.”—"A Vital Mission", Los Angeles Times, June 1999

“Dr. Daniel Marelli of UCLA, however, noted that cardiac surgeons in Texas and Germany have successfully weaned a few patients from the devices without the need for a transplant.”—"Heart Assist Pumps Found to Revive Cells", Los Angeles Times, June 1998

Noteworthy Medicare Patient Procedures Performed by Dr. Daniel Marelli, MD in 2023

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

Top 5%

By Volume:

cardiac procedures

heart bypass surgery

open-heart aortic valve replacement

In 2023, Dr. Daniel Marelli, MD performed more cardiac procedures, heart bypass surgery (CABG), and open-heart aortic valve replacement procedures for Medicare patients than 95% of providers in related specialties within Delaware.

Top 25%

By Volume:

inpatient hospital care

In 2012, Dr. Daniel Marelli, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of providers in related specialties within Delaware.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2012 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	54
cardiac procedures	180
doctor visit	105
hospital care	27
inpatient care	27
open surgery	108
thoracic (chest) surgery procedures	108

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2013 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	38
cardiac procedures	126
doctor visit	167
hospital care	27
inpatient care	27
open surgery	76
thoracic (chest) surgery procedures	76

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	128
Female	61

**Ethnicity**
Non-Hispanic White	165
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	77
85 and over	16
Less than 65	19

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	75
Depression	16
Chronic Kidney Disease	45
Asthma	14
Osteoperosis	0
Atrial Fibrilation	30
Heart Failure	41
Chronic Obstructive Pulmonary Disease	42
Diabetes	49
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2014 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and hospital care.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	47
cardiac procedures	138
doctor visit	166
hospital care	49
inpatient care	36
open surgery	94
outpatient care	13
thoracic (chest) surgery procedures	94

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	141
Female	80

**Ethnicity**
Non-Hispanic White	187
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	92
From 75 to 84	87
85 and over	18
Less than 65	24

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	75
Depression	16
Chronic Kidney Disease	36
Asthma	10
Osteoperosis	0
Atrial Fibrilation	35
Heart Failure	38
Chronic Obstructive Pulmonary Disease	38
Diabetes	41
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2015 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and hospital care.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	29
cardiac procedures	84
doctor visit	234
hospital care	43
inpatient care	43
open surgery	58
thoracic (chest) surgery procedures	58

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	322
Female	166

**Ethnicity**
Non-Hispanic White	402
Black	62
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	212
From 75 to 84	190
85 and over	50
Less than 65	36

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	75
Depression	16
Chronic Kidney Disease	42
Asthma	22
Osteoperosis	7
Atrial Fibrilation	31
Heart Failure	35
Chronic Obstructive Pulmonary Disease	33
Diabetes	42
Dementia	14
Cancer	21

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2016 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and hospital care.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	37
cardiac procedures	112
doctor visit	254
hospital care	51
inpatient care	51
open surgery	74
thoracic (chest) surgery procedures	74

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	177
Female	111

**Ethnicity**
Non-Hispanic White	241
Black	29
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	129
From 75 to 84	92
85 and over	38
Less than 65	29

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	74
Depression	22
Chronic Kidney Disease	50
Asthma	40
Osteoperosis	7
Atrial Fibrilation	30
Heart Failure	38
Chronic Obstructive Pulmonary Disease	38
Diabetes	51
Dementia	16
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2017 were hospital care, inpatient care, cardiac procedures and thoracic (chest) surgery procedures.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	43
cardiac procedures	116
doctor visit	267
hospital care	119
inpatient care	119
open surgery	86
thoracic (chest) surgery procedures	86

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	175
Female	116

**Ethnicity**
Non-Hispanic White	236
Black	40
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	122
From 75 to 84	99
85 and over	43
Less than 65	27

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	75
Depression	22
Chronic Kidney Disease	56
Asthma	5
Osteoperosis	7
Atrial Fibrilation	28
Heart Failure	40
Chronic Obstructive Pulmonary Disease	42
Diabetes	51
Dementia	19
Cancer	20

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2018 were hospital care, inpatient care, cardiac procedures and thoracic (chest) surgery procedures.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	35
cardiac procedures	100
doctor visit	269
hospital care	165
inpatient care	165
open surgery	70
thoracic (chest) surgery procedures	70

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	201
Female	119

**Ethnicity**
Non-Hispanic White	259
Black	43
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	129
From 75 to 84	125
85 and over	37
Less than 65	29

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	72
Depression	27
Chronic Kidney Disease	59
Asthma	7
Osteoperosis	4
Atrial Fibrilation	31
Heart Failure	40
Chronic Obstructive Pulmonary Disease	41
Diabetes	50
Dementia	14
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2019 were hospital care, inpatient care, thoracic (chest) surgery procedures and open surgery.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	32
cardiac procedures	64
doctor visit	281
hospital care	110
inpatient care	110
open surgery	64
thoracic (chest) surgery procedures	64

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	189
Female	104

**Ethnicity**
Non-Hispanic White	242
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	101
85 and over	42
Less than 65	20

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	72
Depression	19
Chronic Kidney Disease	57
Asthma	7
Osteoperosis	6
Atrial Fibrilation	29
Heart Failure	37
Chronic Obstructive Pulmonary Disease	39
Diabetes	46
Dementia	18
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2020 were hospital care, inpatient care, thoracic (chest) surgery procedures and open surgery.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	37
cardiac procedures	74
doctor visit	213
hospital care	93
inpatient care	93
open surgery	74
thoracic (chest) surgery procedures	74

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	189
Female	92

**Ethnicity**
Non-Hispanic White	236
Black	33
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	127
From 75 to 84	93
85 and over	38
Less than 65	23

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	73
Depression	25
Chronic Kidney Disease	54
Asthma	6
Osteoperosis	6
Atrial Fibrilation	27
Heart Failure	34
Chronic Obstructive Pulmonary Disease	36
Diabetes	43
Dementia	11
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2021 were cardiac procedures, hospital care, inpatient care and thoracic (chest) surgery procedures.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	26
cardiac procedures	96
doctor visit	189
hospital care	83
inpatient care	83
minimally invasive procedures	22
open surgery	52
thoracic (chest) surgery procedures	52
vascular procedures	22

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	157
Female	80

**Ethnicity**
Non-Hispanic White	203
Black	20
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	85
85 and over	37
Less than 65	13

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	75
Depression	23
Chronic Kidney Disease	59
Asthma	6
Osteoperosis	8
Atrial Fibrilation	33
Heart Failure	45
Chronic Obstructive Pulmonary Disease	39
Diabetes	43
Dementia	17
Cancer	17

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE during 2022 were thoracic (chest) surgery procedures, open surgery, cardiac procedures and bypass surgery.

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

bypass surgery	31
cardiac procedures	62
doctor visit	132
hospital care	16
inpatient care	16
open surgery	62
thoracic (chest) surgery procedures	62

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	114
Female	54

**Ethnicity**
Non-Hispanic White	141
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	61
From 75 to 84	79
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	75
Depression	26
Chronic Kidney Disease	46
Asthma	11
Osteoperosis	12
Atrial Fibrilation	46
Heart Failure	42
Chronic Obstructive Pulmonary Disease	43
Diabetes	39
Dementia	9
Cancer	23

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Daniel Marelli, MD for Medicare patients.

The highest averages for the top procedures that Dr. Daniel Marelli, MD treated as a cardiac surgeon in Dover, DE were cardiac procedures, thoracic (chest) surgery procedures, open surgery and hospital care.

bypass surgery	37
cardiac procedures	104
doctor visit	207
hospital care	71
inpatient care	70
minimally invasive procedures	22
open surgery	74
outpatient care	13
thoracic (chest) surgery procedures	74
vascular procedures	22

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Daniel Marelli, MD.

**Gender**
Male	163
Female	89

**Ethnicity**
Black / African American	20
Asian / Pacific Islander	0
Non-Hispanic White	210
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	93
85 and over	29
Less than 65	20
65 to 74	107

Average of Total of Conditions of Medicare patients treated by Dr. Daniel Marelli, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	68
Stroke	10
Ischemic Heart Disease	67
Depression	19
Chronic Kidney Disease	45
Asthma	11
Osteoporosis	5
Heart Failure	35
Chronic Obstructive Pulmonary Disease	35
Diabetes	41
Atrial Fibrillation	29
Dementia	12
Cancer	15

Education & Training

He completed residency at Royal Victoria Hospital, Montreal. He is certified by the American Board of Thoracic Surgery and has a state license in Delaware.

Residency: Royal Victoria Hospital, Montreal

Board Certification: American Board of Thoracic Surgery

Licensed In: Delaware

Affiliations & Hospitals

Dr. Daniel Marelli, MD is associated with these hospitals and organizations:

Bayhealth

BAYHEALTH MEDICAL CENTER, INC

Ratings & Reviews

Dr. Daniel Marelli, MD has an exceptional overall rating with an average of 4.82 out of 5 stars based on 44 ratings. We collect ratings and reviews of Dr. Daniel Marelli, MD from all over the web to help you find the right in Dover, DE.

4.82

Overall Rating

(44 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Medtronic Vascular, Inc.	$1,878 Endurant $1,192	Aortic Stent Grafts $540	3F $78	Aortic EndoAnchors $26	CoreValve Evolut $25	Other $16
Edwards Lifesciences Corporation	$393 Transcatheter Heart Valves $167	EDWARDS INTUITY Elite valve system $108	Pericardial Heart Valves $45	Carpentier-Edwards PERIMOUNT Magna Ease Pericardial Aortic Bioprosthesis $45	Edwards SAPIEN 3 Transcatheter Heart Valve $27
Medtronic, Inc.	$293 ENDURANT IIS $180	CoreValve Evolut $108	Endurant $4	COREVALVE EVOLUT R $1
AbbVie Inc.	$150 VUITY $150
CorMatrix Cardiovascular Inc.	$140 ECM Patch $140
Other	$727 Impella $90	LifeVest $42	Advanced Energy Hemostatic Device $41	Cardiovascular $35	SYNERGY ABLATION SYSTEM $28	Other $491

**Types of Payments**
Food and Beverage	$2,291
Travel and Lodging	$1,171
Education	$120

Biography

Dr. Daniel Marelli specializes in cardiac surgery, vascular surgery, and thoracic surgery and practices in Dover, DE and Milford, DE. Dr. Marelli is rated highly by his patients. He trained at Royal Victoria Hospital, Montreal for residency. He is professionally affiliated with Bayhealth. Doctor.com reports that he is accepting new patients at his office in Dover, DE.

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Dr. Daniel Marelli, MD

Office Locations

In The News

Noteworthy Medicare Patient Procedures Performed by Dr. Daniel Marelli, MD in 2023

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. Daniel Marelli, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Marelli, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel Marelli, 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. Daniel Marelli, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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