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Dr. Mark D. Castellani, MD

(Mark D. Castellani, MD)

(No ratings)

Specializes in: Cardiac Electrophysiology (Heart Rhythm)

Wayne State University School of Medicine (1988)

901 S. Oakland Street Suite 101
St. Johns, MI 48879

(616) 523-1355

Dr. Mark D. Castellani, MD is a cardiac electrophysiologist in St. Johns, MI specializing in cardiac electrophysiology (heart rhythm). He graduated from Wayne State University School of Medicine in 1988 and has 38 years of experience. Dr. Mark D. Castellani, MD is affiliated with University of Michigan Health-Sparrow, EDWARD W SPARROW HOSPITAL ASSOCIATION and St. Johns Heart & Vascular | University of Michigan Health-Sparrow.

Office Locations

901 S. Oakland Street Suite 101
St. Johns, MI 48879

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300 Health Park Drive Suite 301
Owosso, MI 48867

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321 E. Harris Street
Charlotte, MI 48813

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245 S. 2nd Street
Carson City, MI 48811

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301 Williamston Center Road
Williamston, MI 48895

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3565 S. State Road
Ionia, MI 48446

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1140 E. Michigan Avenue Suite 400
Lansing, MI 48912

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Noteworthy Medicare Patient Procedures Performed by Dr. Mark D. Castellani, MD in 2023

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

Top 5%

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2023, Dr. Mark D. Castellani, MD had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Michigan. 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

2012 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2012 were hospital care, inpatient care, blood draw and lab tests.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

ablation	11
blood draw	157
cardiac procedures	80
cardioversion	39
catheterization	11
diagnostic procedures	11
doctor visit	518
hospital care	729
implant surgery	58
implantable cardioverter-defibrillator (ICD) replacement	35
inpatient care	729
lab tests	156
minimally invasive procedures	80

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2013 were hospital care, inpatient care, lab tests and blood draw.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

blood draw	85
cardiac procedures	59
cardioversion	55
doctor visit	609
hospital care	761
implant surgery	59
implantable cardioverter-defibrillator (ICD) replacement	49
inpatient care	750
lab tests	85
minimally invasive procedures	59
outpatient care	11

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	1238
Female	1059

**Ethnicity**
Non-Hispanic White	2097
Black	120
Hispanic	36
Asian	0
Other	29
Native American	0

**Age**
From 65 to 74	677
From 75 to 84	815
85 and over	562
Less than 65	243

Conditions of Medicare patients treated by Dr. Mark D. Castellani, MD in 2013

Hypertension	75
High Cholesterol	63
Stroke	7
Ischemic Heart Disease	68
Depression	24
Chronic Kidney Disease	33
Asthma	9
Osteoperosis	8
Atrial Fibrilation	44
Heart Failure	51
Chronic Obstructive Pulmonary Disease	25
Diabetes	39
Dementia	18
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2014 were hospital care, inpatient care, cardiac procedures and implantable cardioverter-defibrillator (ICD) replacement.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

cardiac procedures	75
cardioversion	34
diagnostic procedures	11
doctor visit	613
hospital care	598
implant surgery	64
implantable cardioverter-defibrillator (ICD) replacement	72
inpatient care	598
minimally invasive procedures	64

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	1352
Female	1289

**Ethnicity**
Non-Hispanic White	2387
Black	153
Hispanic	50
Asian	0
Other	27
Native American	0

**Age**
From 65 to 74	760
From 75 to 84	946
85 and over	627
Less than 65	308

Conditions of Medicare patients treated by Dr. Mark D. Castellani, MD in 2014

Hypertension	75
High Cholesterol	62
Stroke	9
Ischemic Heart Disease	63
Depression	27
Chronic Kidney Disease	34
Asthma	10
Osteoperosis	8
Atrial Fibrilation	41
Heart Failure	48
Chronic Obstructive Pulmonary Disease	24
Diabetes	39
Dementia	18
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2015 were hospital care, inpatient care, minimally invasive procedures and implant surgery.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

cardiac procedures	57
cardioversion	52
doctor visit	565
hospital care	551
implant surgery	57
implantable cardioverter-defibrillator (ICD) replacement	42
inpatient care	551
minimally invasive procedures	57

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	3044
Female	3152

**Ethnicity**
Non-Hispanic White	5534
Black	400
Hispanic	142
Asian	0
Other	66
Native American	0

**Age**
From 65 to 74	1820
From 75 to 84	2006
85 and over	1458
Less than 65	912

Conditions of Medicare patients treated by Dr. Mark D. Castellani, MD in 2015

Hypertension	75
High Cholesterol	63
Stroke	10
Ischemic Heart Disease	59
Depression	30
Chronic Kidney Disease	41
Asthma	20
Osteoperosis	10
Atrial Fibrilation	39
Heart Failure	49
Chronic Obstructive Pulmonary Disease	29
Diabetes	40
Dementia	21
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2016 were hospital care, inpatient care, cardioversion and minimally invasive procedures.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

cardiac procedures	12
cardioversion	62
doctor visit	492
hospital care	758
implant surgery	12
inpatient care	747
minimally invasive procedures	12
outpatient care	11

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	1401
Female	1359

**Ethnicity**
Non-Hispanic White	2491
Black	150
Hispanic	59
Asian	0
Other	38
Native American	0

**Age**
From 65 to 74	885
From 75 to 84	884
85 and over	645
Less than 65	346

Conditions of Medicare patients treated by Dr. Mark D. Castellani, MD in 2016

Hypertension	75
High Cholesterol	60
Stroke	10
Ischemic Heart Disease	59
Depression	28
Chronic Kidney Disease	42
Asthma	29
Osteoperosis	9
Atrial Fibrilation	40
Heart Failure	48
Chronic Obstructive Pulmonary Disease	27
Diabetes	39
Dementia	21
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2017 were hospital care, inpatient care, minimally invasive procedures and implant surgery.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

cardiac procedures	58
cardioversion	49
doctor visit	623
hospital care	629
implant surgery	58
implantable cardioverter-defibrillator (ICD) replacement	33
inpatient care	629
minimally invasive procedures	58

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	1255
Female	1137

**Ethnicity**
Non-Hispanic White	2157
Black	133
Hispanic	50
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	771
From 75 to 84	795
85 and over	541
Less than 65	285

Conditions of Medicare patients treated by Dr. Mark D. Castellani, MD in 2017

Hypertension	75
High Cholesterol	60
Stroke	10
Ischemic Heart Disease	60
Depression	29
Chronic Kidney Disease	44
Asthma	10
Osteoperosis	9
Atrial Fibrilation	44
Heart Failure	47
Chronic Obstructive Pulmonary Disease	26
Diabetes	38
Dementia	20
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2018 were hospital care, inpatient care, minimally invasive procedures and implant surgery.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

cardiac procedures	70
cardioversion	46
device removal	11
doctor visit	485
hospital care	680
implant surgery	70
implantable cardioverter-defibrillator (ICD) replacement	21
inpatient care	669
minimally invasive procedures	81
outpatient care	11

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	1019
Female	949

**Ethnicity**
Non-Hispanic White	1770
Black	102
Hispanic	45
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	629
From 75 to 84	685
85 and over	436
Less than 65	218

Conditions of Medicare patients treated by Dr. Mark D. Castellani, MD in 2018

Hypertension	75
High Cholesterol	65
Stroke	12
Ischemic Heart Disease	60
Depression	29
Chronic Kidney Disease	44
Asthma	10
Osteoperosis	8
Atrial Fibrilation	48
Heart Failure	48
Chronic Obstructive Pulmonary Disease	25
Diabetes	39
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2019 were hospital care, inpatient care, minimally invasive procedures and implant surgery.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

cardiac procedures	42
cardioversion	34
doctor visit	417
hospital care	871
implant surgery	42
implantable cardioverter-defibrillator (ICD) replacement	14
inpatient care	844
minimally invasive procedures	42
outpatient care	27

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	1585
Female	1574

**Ethnicity**
Non-Hispanic White	2754
Black	223
Hispanic	86
Asian	0
Other	60
Native American	0

**Age**
From 65 to 74	1072
From 75 to 84	967
85 and over	648
Less than 65	472

Conditions of Medicare patients treated by Dr. Mark D. Castellani, MD in 2019

Hypertension	75
High Cholesterol	64
Stroke	12
Ischemic Heart Disease	54
Depression	35
Chronic Kidney Disease	49
Asthma	11
Osteoperosis	9
Atrial Fibrilation	38
Heart Failure	45
Chronic Obstructive Pulmonary Disease	28
Diabetes	40
Dementia	22
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2020 were hospital care, inpatient care, cardioversion and minimally invasive procedures.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

cardiac procedures	11
cardioversion	16
doctor visit	402
hospital care	403
implant surgery	11
inpatient care	403
minimally invasive procedures	11

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	1532
Female	1688

**Ethnicity**
Non-Hispanic White	2777
Black	233
Hispanic	117
Asian	0
Other	58
Native American	0

**Age**
From 65 to 74	1084
From 75 to 84	949
85 and over	573
Less than 65	614

Conditions of Medicare patients treated by Dr. Mark D. Castellani, MD in 2020

Hypertension	75
High Cholesterol	64
Stroke	13
Ischemic Heart Disease	50
Depression	41
Chronic Kidney Disease	50
Asthma	12
Osteoperosis	10
Atrial Fibrilation	30
Heart Failure	40
Chronic Obstructive Pulmonary Disease	28
Diabetes	41
Dementia	26
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2021 were hospital care, inpatient care, minimally invasive procedures and implant surgery.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

cardiac procedures	16
doctor visit	366
hospital care	405
implant surgery	16
inpatient care	405
minimally invasive procedures	16

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	1680
Female	1942

**Ethnicity**
Non-Hispanic White	3044
Black	310
Hispanic	140
Asian	38
Other	73
Native American	17

**Age**
From 65 to 74	1214
From 75 to 84	978
85 and over	586
Less than 65	844

Conditions of Medicare patients treated by Dr. Mark D. Castellani, MD in 2021

Hypertension	75
High Cholesterol	66
Stroke	14
Ischemic Heart Disease	48
Depression	42
Chronic Kidney Disease	51
Asthma	13
Osteoperosis	11
Atrial Fibrilation	27
Heart Failure	38
Chronic Obstructive Pulmonary Disease	30
Diabetes	41
Dementia	26
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

doctor visit	255
hospital care	139
inpatient care	139

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	1014
Female	1181

**Ethnicity**
Non-Hispanic White	1851
Black	180
Hispanic	71
Asian	0
Other	65
Native American	0

**Age**
From 65 to 74	752
From 75 to 84	605
85 and over	365
Less than 65	473

Conditions of Medicare patients treated by Dr. Mark D. Castellani, MD in 2022

Hypertension	75
High Cholesterol	73
Stroke	18
Ischemic Heart Disease	39
Depression	40
Chronic Kidney Disease	38
Asthma	16
Osteoperosis	15
Atrial Fibrilation	37
Heart Failure	36
Chronic Obstructive Pulmonary Disease	32
Diabetes	41
Dementia	19
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mark D. Castellani, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark D. Castellani, MD treated as a cardiac electrophysiologist in St. Johns, MI were hospital care, inpatient care, blood draw and lab tests.

ablation	11
blood draw	121
cardiac procedures	48
cardioversion	43
catheterization	11
device removal	11
diagnostic procedures	11
doctor visit	485
hospital care	593
implant surgery	44
implantable cardioverter-defibrillator (ICD) replacement	38
inpatient care	587
lab tests	120
minimally invasive procedures	48
outpatient care	15

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mark D. Castellani, MD.

**Gender**
Male	1374
Female	1393

**Ethnicity**
Black / African American	182
Asian / Pacific Islander	3
Non-Hispanic White	2442
Hispanic	72
Native American / Alaskan Native	1
Other	43

**Age**
75 to 84	875
85 and over	585
Less than 65	428
65 to 74	878

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

The highest averages of the most common conditions of Medicare patients that Dr. Mark D. Castellani, MD treated were hypertension, high cholesterol, ischemic heart disease and heart failure.

Hypertension	68
High Cholesterol	58
Stroke	10
Ischemic Heart Disease	50
Depression	29
Chronic Kidney Disease	38
Asthma	12
Osteoporosis	8
Heart Failure	40
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Atrial Fibrillation	35
Cancer	11
Dementia	19

Education & Training

Dr. Mark D. Castellani, MD graduated from Wayne State University School of Medicine in 1988. He completed residency at Corewell Health William Beaumont University Hospit. He is certified by the American Board of Internal Medicine - American Board of Internal Medicine - IM, Clin Card Electrophysio and has a state license in Michigan.

Medical School: Wayne State University School of Medicine (1988)

Residency: Corewell Health William Beaumont University Hospit (1991)

Board Certification: American Board of Internal Medicine - American Board of Internal Medicine - IM, Clin Card Electrophysio

Licensed In: Michigan

Affiliations & Hospitals

Dr. Mark D. Castellani, MD is associated with these hospitals and organizations:

University of Michigan Health-Sparrow

EDWARD W SPARROW HOSPITAL ASSOCIATION

St. Johns Heart & Vascular | University of Michigan Health-Sparrow

Ratings & Reviews

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General Payments

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

**Payments by Company**
St. Jude Medical, Inc.	$2,087 Electrophysiology $863	CRM $848	Unify Assura $164	Nanostim $55	Fortify Assura and Ellipse $51	Other $106
Abbott Laboratories	$1,387 Quadra Assura CRT Defibrillator $103	Tendril $90	GALLANT $82	CRT-Ds $76	Confirm Rx $48	Other $989
Janssen Pharmaceuticals, Inc	$1,255 XARELTO $1,233	INVOKANA $23
Boston Scientific Corporation	$816 WATCHMAN Access System $266	WATCHMAN $218	Watchman Device $176	GENERAL THERAPIES $85	WATCHMAN FLX $26	Other $45
Novartis Pharmaceuticals Corporation	$770 ENTRESTO $770
Other	$3,627 LifeVest $404	ELIQUIS $347	SLS IIGLIDELIGHT $252	Micra $247	BRILINTA $223	Other $2,154

**Types of Payments**
Food and Beverage	$9,135
Travel and Lodging	$621
Education	$186

Research Payments

Dr. Mark D. Castellani, MD has received 50 research payments totaling $34,572.

Biography

Dr. Mark Castellani is a physician who specializes in cardiac electrophysiology (heart rhythm). He is a graduate of Wayne State University School of Medicine. Dr. Castellani is affiliated with the University of Michigan Health-Sparrow.