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Home > AZ Providers > Cardiologists

Dr. Mark J. Seifert, MD

(Mark Seifert, MD)

(199 Ratings)

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

Johns Hopkins University School of Medicine (1989)

9250 N 3rd Street Suite 2000
Phoenix, AZ 85020

(480) 246-3000

Dr. Mark J. Seifert, MD is a cardiologist in Phoenix, AZ specializing in cardiology (heart disease) and cardiac electrophysiology (heart rhythm). He graduated from Johns Hopkins University School of Medicine in 1989 and has 37 years of experience. Dr. Mark J. Seifert, MD is affiliated with Deer Valley Medical Center, Scottsdale Shea Medical Center, Scottsdale Osborn Medical Center, Sonoran Crossing Medical Center, Scottsdale Thompson Peak Medical Center, Honor Health, HONORHEALTH AMBULATORY, HonorHealth Heart Group - John C. Lincoln and John C Lincoln Medical Center.

Office Locations

9250 N 3rd Street Suite 2000
Phoenix, AZ 85020

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19636 N. 27th Avenue Suite 306
Phoenix, AZ 85027

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Noteworthy Medicare Patient Procedures Performed by Dr. Mark J. Seifert, MD in 2023

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

Top 5%

By Affordability:

echocardiogram

In 2023, Dr. Mark J. Seifert, MD had a list price for echocardiogram (echo) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Arizona. 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:

cardiac imaging

intracardiac echocardiography

In 2023, Dr. Mark J. Seifert, MD had a list price for cardiac imaging, and intracardiac echocardiography (ICE) that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Arizona. 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

permanent transvenous pacemaker implantation

permanent transvenous pacemaker replacement

In 2012, Dr. Mark J. Seifert, MD performed more cardioversion, elective external cardioversion, permanent transvenous pacemaker implantation, and permanent transvenous pacemaker replacement procedures for Medicare patients than 75% of providers in related specialties within Arizona.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2012 were cardiac procedures, minimally invasive procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	49
ambulatory monitoring	14
cardiac procedures	278
cardioversion	38
catheterization	49
diagnostic procedures	64
doctor visit	449
hospital care	139
implant surgery	89
implantable cardioverter-defibrillator (ICD) replacement	13
inpatient care	139
lab tests	88
minimally invasive procedures	232
ultrasound (sonogram)	62

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2013 were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	41
cardiac procedures	152
cardioversion	43
catheterization	41
diagnostic procedures	41
doctor visit	405
hospital care	218
implant surgery	67
implantable cardioverter-defibrillator (ICD) replacement	12
inpatient care	218
lab tests	62
minimally invasive procedures	182
ultrasound (sonogram)	44

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	389
Female	311

**Ethnicity**
Non-Hispanic White	648
Black	0
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	262
From 75 to 84	235
85 and over	170
Less than 65	33

Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD in 2013

Hypertension	75
High Cholesterol	67
Stroke	9
Ischemic Heart Disease	62
Depression	14
Chronic Kidney Disease	36
Asthma	8
Osteoperosis	7
Atrial Fibrilation	53
Heart Failure	47
Chronic Obstructive Pulmonary Disease	20
Diabetes	32
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2014 were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	36
cardiac procedures	160
cardioversion	39
catheterization	36
diagnostic procedures	36
doctor visit	596
hospital care	213
implant surgery	81
implantable cardioverter-defibrillator (ICD) replacement	22
inpatient care	213
lab tests	112
minimally invasive procedures	196
ultrasound (sonogram)	31

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	443
Female	379

**Ethnicity**
Non-Hispanic White	747
Black	15
Hispanic	36
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	291
From 75 to 84	292
85 and over	194
Less than 65	45

Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD in 2014

Hypertension	75
High Cholesterol	64
Stroke	10
Ischemic Heart Disease	59
Depression	14
Chronic Kidney Disease	37
Asthma	10
Osteoperosis	8
Atrial Fibrilation	54
Heart Failure	43
Chronic Obstructive Pulmonary Disease	23
Diabetes	33
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2015 were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	37
cardiac procedures	124
cardioversion	59
catheterization	37
diagnostic procedures	37
doctor visit	446
hospital care	163
implant surgery	55
implantable cardioverter-defibrillator (ICD) replacement	20
inpatient care	163
lab tests	79
minimally invasive procedures	161
ultrasound (sonogram)	32

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	888
Female	702

**Ethnicity**
Non-Hispanic White	1428
Black	28
Hispanic	84
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	548
From 75 to 84	550
85 and over	404
Less than 65	88

Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD in 2015

Hypertension	75
High Cholesterol	60
Stroke	9
Ischemic Heart Disease	59
Depression	17
Chronic Kidney Disease	40
Asthma	15
Osteoperosis	7
Atrial Fibrilation	51
Heart Failure	44
Chronic Obstructive Pulmonary Disease	23
Diabetes	33
Dementia	14
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2016 were cardiac procedures, minimally invasive procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	23
cardiac procedures	141
cardioversion	39
catheterization	23
diagnostic procedures	23
doctor visit	463
hospital care	126
implant surgery	60
implantable cardioverter-defibrillator (ICD) replacement	11
inpatient care	126
lab tests	51
minimally invasive procedures	133
preventive care	31
ultrasound (sonogram)	27

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	409
Female	360

**Ethnicity**
Non-Hispanic White	695
Black	13
Hispanic	33
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	291
From 75 to 84	244
85 and over	192
Less than 65	42

Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD in 2016

Hypertension	75
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	57
Depression	18
Chronic Kidney Disease	42
Asthma	23
Osteoperosis	8
Atrial Fibrilation	50
Heart Failure	43
Chronic Obstructive Pulmonary Disease	22
Diabetes	30
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2017 were minimally invasive procedures, cardiac procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	37
ambulatory monitoring	16
cardiac procedures	162
cardioversion	63
catheterization	37
diagnostic procedures	25
doctor visit	473
hospital care	138
implant surgery	77
implantable cardioverter-defibrillator (ICD) replacement	17
inpatient care	138
lab tests	34
minimally invasive procedures	183
ultrasound (sonogram)	32

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	442
Female	365

**Ethnicity**
Non-Hispanic White	727
Black	13
Hispanic	36
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	289
From 75 to 84	278
85 and over	203
Less than 65	37

Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD in 2017

Hypertension	75
High Cholesterol	61
Stroke	8
Ischemic Heart Disease	57
Depression	15
Chronic Kidney Disease	46
Asthma	7
Osteoperosis	7
Atrial Fibrilation	51
Heart Failure	45
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Dementia	16
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2018 were minimally invasive procedures, cardiac procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	64
ambulatory monitoring	18
cardiac procedures	201
cardioversion	54
catheterization	64
diagnostic procedures	48
doctor visit	543
hospital care	164
implant surgery	65
implantable cardioverter-defibrillator (ICD) replacement	15
inpatient care	164
lab tests	38
minimally invasive procedures	247
ultrasound (sonogram)	41

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	474
Female	377

**Ethnicity**
Non-Hispanic White	776
Black	12
Hispanic	33
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	304
From 75 to 84	313
85 and over	206
Less than 65	28

Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD in 2018

Hypertension	75
High Cholesterol	65
Stroke	10
Ischemic Heart Disease	58
Depression	15
Chronic Kidney Disease	44
Asthma	9
Osteoperosis	8
Atrial Fibrilation	52
Heart Failure	45
Chronic Obstructive Pulmonary Disease	19
Diabetes	31
Dementia	13
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2019 were minimally invasive procedures, cardiac procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	68
ambulatory monitoring	18
cardiac procedures	201
cardioversion	52
catheterization	68
diagnostic procedures	55
doctor visit	517
hospital care	113
implant surgery	66
implantable cardioverter-defibrillator (ICD) replacement	15
inpatient care	113
lab tests	27
minimally invasive procedures	251
ultrasound (sonogram)	49

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	487
Female	390

**Ethnicity**
Non-Hispanic White	787
Black	24
Hispanic	32
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	312
From 75 to 84	327
85 and over	207
Less than 65	31

Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD in 2019

Hypertension	75
High Cholesterol	67
Stroke	10
Ischemic Heart Disease	57
Depression	17
Chronic Kidney Disease	42
Asthma	9
Osteoperosis	9
Atrial Fibrilation	52
Heart Failure	46
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	14
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2020 were minimally invasive procedures, cardiac procedures, inpatient care and hospital care.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	69
ambulatory monitoring	24
cardiac procedures	213
cardioversion	53
catheterization	69
diagnostic procedures	69
doctor visit	513
hospital care	111
implant surgery	55
implantable cardioverter-defibrillator (ICD) replacement	12
inpatient care	111
lab tests	22
minimally invasive procedures	258
ultrasound (sonogram)	65

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	512
Female	407

**Ethnicity**
Non-Hispanic White	827
Black	20
Hispanic	39
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	331
From 75 to 84	360
85 and over	199
Less than 65	29

Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD in 2020

Hypertension	75
High Cholesterol	65
Stroke	11
Ischemic Heart Disease	57
Depression	20
Chronic Kidney Disease	44
Asthma	8
Osteoperosis	9
Atrial Fibrilation	52
Heart Failure	42
Chronic Obstructive Pulmonary Disease	17
Diabetes	30
Dementia	13
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2021 were minimally invasive procedures, cardiac procedures, implant surgery and catheterization.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	53
cardiac procedures	165
cardioversion	35
catheterization	53
diagnostic procedures	53
doctor visit	517
hospital care	40
implant surgery	60
implantable cardioverter-defibrillator (ICD) replacement	17
inpatient care	40
minimally invasive procedures	218
ultrasound (sonogram)	52

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	486
Female	345

**Ethnicity**
Non-Hispanic White	752
Black	13
Hispanic	32
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	320
From 75 to 84	322
85 and over	171
Less than 65	18

Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD in 2021

Hypertension	75
High Cholesterol	65
Stroke	11
Ischemic Heart Disease	56
Depression	20
Chronic Kidney Disease	44
Asthma	9
Osteoperosis	10
Atrial Fibrilation	50
Heart Failure	40
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	14
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ during 2022 were minimally invasive procedures, cardiac procedures, catheterization and ablation.

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

ablation	61
ambulatory monitoring	11
cardiac procedures	116
cardioversion	48
catheterization	61
diagnostic procedures	61
doctor visit	316
hospital care	17
implant surgery	31
implantable cardioverter-defibrillator (ICD) replacement	13
inpatient care	17
minimally invasive procedures	166
ultrasound (sonogram)	13

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	437
Female	314

**Ethnicity**
Non-Hispanic White	669
Black	16
Hispanic	33
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	239
From 75 to 84	339
85 and over	159
Less than 65	14

Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	47
Depression	22
Chronic Kidney Disease	39
Asthma	13
Osteoperosis	13
Atrial Fibrilation	70
Heart Failure	40
Chronic Obstructive Pulmonary Disease	18
Diabetes	30
Dementia	9
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mark J. Seifert, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark J. Seifert, MD treated as a cardiologist in Phoenix, AZ were minimally invasive procedures, cardiac procedures, inpatient care and hospital care.

ablation	48
ambulatory monitoring	16
cardiac procedures	173
cardioversion	47
catheterization	48
diagnostic procedures	46
doctor visit	476
hospital care	131
implant surgery	64
implantable cardioverter-defibrillator (ICD) replacement	15
inpatient care	131
lab tests	57
minimally invasive procedures	202
preventive care	31
ultrasound (sonogram)	40

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mark J. Seifert, MD.

**Gender**
Male	451
Female	359

**Ethnicity**
Black / African American	14
Asian / Pacific Islander	0
Non-Hispanic White	732
Native American / Alaskan Native	0
Hispanic	34
Other	13

**Age**
75 to 84	296
85 and over	191
Less than 65	33
65 to 74	289

Average of Total of Conditions of Medicare patients treated by Dr. Mark J. Seifert, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	59
Stroke	9
Ischemic Heart Disease	51
Depression	15
Chronic Kidney Disease	37
Asthma	10
Osteoporosis	7
Heart Failure	39
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Atrial Fibrillation	48
Dementia	12
Cancer	11

Education & Training

Dr. Mark J. Seifert, MD graduated from Johns Hopkins University School of Medicine in 1989. He completed residency at University of Michigan Affiliated Hospitals. He is certified by the American Board of Internal Medicine - Clinical Cardiac Electrophysiology and has a state license in Arizona.

Medical School: Johns Hopkins University School of Medicine (1989)

Residency: University of Michigan Affiliated Hospitals

Board Certification: American Board of Internal Medicine - Clinical Cardiac Electrophysiology

Licensed In: Arizona

Affiliations & Hospitals

Dr. Mark J. Seifert, MD is associated with these hospitals and organizations:

Deer Valley Medical Center

Scottsdale Shea Medical Center

Scottsdale Osborn Medical Center

Sonoran Crossing Medical Center

Scottsdale Thompson Peak Medical Center

Honor Health

HONORHEALTH AMBULATORY

HonorHealth Heart Group - John C. Lincoln

John C Lincoln Medical Center

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Mark J. Seifert, MD appears to accept the following insurance providers: Medicare Advantage, Oscar, United Healthcare, Aetna Medicare, CIGNA Commercial, Aetna Commercial, Arizona Complete Health, BlueCross BlueShield Alliance, Banner Aetna and HonorHealth Employee Plan.

Insurance Accepted by Provider includes:

According to our sources, Dr. Mark J. Seifert, MD accepts the following insurance providers:

Medicare Advantage

Oscar

United Healthcare

Aetna Medicare

CIGNA Commercial

Aetna Commercial

Arizona Complete Health

BlueCross BlueShield Alliance

Banner Aetna

HonorHealth Employee Plan

Ratings & Reviews

Dr. Mark J. Seifert, MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 199 ratings. We collect ratings and reviews of Dr. Mark J. Seifert, MD from all over the web to help you find the right in Phoenix, AZ.

4.9

Overall Rating

(199 Ratings)

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General Payments

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

**Payments by Company**
St. Jude Medical, Inc.	$202,549 Electrophysiology $179,642	MediGuide Technology $9,163	CRM $5,560	Vascular $2,111	CardioMEMS HF System $1,644	Other $4,429
Abbott Laboratories	$108,246 Cardiac Mapping System $46,815	NAVIGATION $17,182	CardioMEMS HF System $12,894	EP-Research only $9,729	MediGuide Technology $4,758	Other $16,868
Stryker Corporation	$41,558 GENERAL REPROCESSING PROCEDURES AND BENEFITS $31,100	REPROCESSED VASCULAR DEVICES $5,950	Reprocessed EP Catheters $1,758	None $1,200	Reprocessed Pneumatic Tourn Cuff $1,200	Other $350
Boston Scientific Corporation	$4,341 WATCHMAN $3,411	SYNERGY Bioabsorbable Polymer Drug-Eluting Stent System $219	WATCHMAN Access System $155	STENTS $126	SYNERGY $116	Other $314
IMPULSE DYNAMICS (USA) INC.	$1,882 OPTIMIZER SMART SYSTEM $978	OPTIMIZER $903
Other	$12,915 Product in Development $1,780	Carto 3 System $1,551	Heartlight System $1,308	LifeVest $1,243	Cardiva VASCADE MVP VVCS 6-12F $799	Other $6,234

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$148,583
Consulting Fee	$141,082
Travel and Lodging	$51,658
Food and Beverage	$30,144
Education	$25

Research Payments

Dr. Mark J. Seifert, MD has received 34 research payments totaling $63,267.

Biography

Dr. Mark Seifert is a specialist in cardiac electrophysiology (heart rhythm). His average rating from his patients is 5.0 stars (out of 5). He is professionally affiliated with Scottsdale Osborn Medical Center, Scottsdale Shea Medical Center, and Deer Valley Medical Center. Dr. Seifert appears to be in-network for Aetna Medicare, Cigna, CIGNA Plans, and more. Dr. Seifert attended Johns Hopkins University School of Medicine and then went on to complete his residency at a hospital affiliated with the University of Michigan.