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Dr. Sei Iwai, MD

Accepting New Patients

(11 Ratings)

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

Columbia University, College of Physicians and Surgeons (1994)

100 Woods Road ACP 1st Floor
Valhalla, NY 10595

(914) 909-6900

Dr. Sei Iwai, MD is a cardiac electrophysiologist in Valhalla, NY specializing in cardiac electrophysiology (heart rhythm) and adult cardiology. He graduated from Columbia University, College of Physicians and Surgeons in 1994 and has 32 years of experience. Dr. Sei Iwai, MD is affiliated with WMCHealth.

Office Locations

100 Woods Road ACP 1st Floor
Valhalla, NY 10595

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2012 were cardiac procedures, minimally invasive procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	24
cardiac procedures	103
cardioversion	14
catheterization	24
diagnostic procedures	37
doctor visit	114
hospital care	78
implant surgery	42
implantable cardioverter-defibrillator (ICD) replacement	14
inpatient care	78
minimally invasive procedures	90

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2013 were minimally invasive procedures, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	20
cardiac procedures	73
catheterization	20
diagnostic procedures	33
doctor visit	100
hospital care	61
implant surgery	40
implantable cardioverter-defibrillator (ICD) replacement	26
inpatient care	61
minimally invasive procedures	80

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	139
Female	72

**Ethnicity**
Non-Hispanic White	160
Black	23
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	66
From 75 to 84	87
85 and over	36
Less than 65	22

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	74
Depression	19
Chronic Kidney Disease	46
Asthma	9
Osteoperosis	7
Atrial Fibrilation	55
Heart Failure	64
Chronic Obstructive Pulmonary Disease	19
Diabetes	45
Dementia	18
Cancer	16

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2014 were minimally invasive procedures, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	24
cardiac procedures	52
catheterization	24
diagnostic procedures	24
doctor visit	95
hospital care	48
implant surgery	13
implantable cardioverter-defibrillator (ICD) replacement	13
inpatient care	48
minimally invasive procedures	76
ultrasound (sonogram)	15

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	132
Female	59

**Ethnicity**
Non-Hispanic White	151
Black	20
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	64
85 and over	31
Less than 65	23

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	72
Depression	23
Chronic Kidney Disease	43
Asthma	9
Osteoperosis	6
Atrial Fibrilation	56
Heart Failure	60
Chronic Obstructive Pulmonary Disease	23
Diabetes	50
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2015 were minimally invasive procedures, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

cardiac procedures	48
doctor visit	113
hospital care	42
implant surgery	37
implantable cardioverter-defibrillator (ICD) replacement	18
inpatient care	42
minimally invasive procedures	48
ultrasound (sonogram)	11

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	364
Female	184

**Ethnicity**
Non-Hispanic White	450
Black	48
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	202
From 75 to 84	168
85 and over	102
Less than 65	76

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2015

Hypertension	75
High Cholesterol	71
Stroke	16
Ischemic Heart Disease	71
Depression	17
Chronic Kidney Disease	39
Asthma	14
Osteoperosis	0
Atrial Fibrilation	53
Heart Failure	55
Chronic Obstructive Pulmonary Disease	21
Diabetes	46
Dementia	13
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2016 were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	30
cardiac procedures	83
catheterization	30
diagnostic procedures	30
doctor visit	167
hospital care	206
implant surgery	31
implantable cardioverter-defibrillator (ICD) replacement	12
inpatient care	206
minimally invasive procedures	113
ultrasound (sonogram)	22

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	204
Female	121

**Ethnicity**
Non-Hispanic White	257
Black	30
Hispanic	25
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	108
85 and over	59
Less than 65	43

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2016

Hypertension	75
High Cholesterol	72
Stroke	15
Ischemic Heart Disease	74
Depression	22
Chronic Kidney Disease	46
Asthma	27
Osteoperosis	5
Atrial Fibrilation	57
Heart Failure	62
Chronic Obstructive Pulmonary Disease	25
Diabetes	47
Dementia	15
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2017 were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	18
cardiac procedures	54
cardioversion	15
catheterization	18
diagnostic procedures	18
doctor visit	120
hospital care	212
implant surgery	16
inpatient care	212
minimally invasive procedures	72
ultrasound (sonogram)	20

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	233
Female	158

**Ethnicity**
Non-Hispanic White	310
Black	30
Hispanic	29
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	148
From 75 to 84	126
85 and over	70
Less than 65	47

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2017

Hypertension	75
High Cholesterol	70
Stroke	17
Ischemic Heart Disease	70
Depression	29
Chronic Kidney Disease	49
Asthma	8
Osteoperosis	6
Atrial Fibrilation	54
Heart Failure	63
Chronic Obstructive Pulmonary Disease	25
Diabetes	42
Dementia	20
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2018 were minimally invasive procedures, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	52
cardiac procedures	144
cardioversion	16
catheterization	52
diagnostic procedures	52
doctor visit	217
hospital care	124
implant surgery	46
implantable cardioverter-defibrillator (ICD) replacement	14
inpatient care	124
minimally invasive procedures	196
ultrasound (sonogram)	46

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	246
Female	174

**Ethnicity**
Non-Hispanic White	333
Black	30
Hispanic	34
Asian	12
Other	11
Native American	0

**Age**
From 65 to 74	152
From 75 to 84	138
85 and over	87
Less than 65	43

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2018

Hypertension	75
High Cholesterol	74
Stroke	18
Ischemic Heart Disease	65
Depression	22
Chronic Kidney Disease	45
Asthma	8
Osteoperosis	5
Atrial Fibrilation	56
Heart Failure	54
Chronic Obstructive Pulmonary Disease	20
Diabetes	38
Dementia	18
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2019 were minimally invasive procedures, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	34
cardiac procedures	88
catheterization	34
diagnostic procedures	34
doctor visit	217
hospital care	61
implant surgery	29
inpatient care	61
minimally invasive procedures	122
ultrasound (sonogram)	25

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	506
Female	395

**Ethnicity**
Non-Hispanic White	691
Black	83
Hispanic	77
Asian	0
Other	34
Native American	0

**Age**
From 65 to 74	296
From 75 to 84	307
85 and over	164
Less than 65	134

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2019

Hypertension	75
High Cholesterol	73
Stroke	19
Ischemic Heart Disease	69
Depression	30
Chronic Kidney Disease	50
Asthma	10
Osteoperosis	8
Atrial Fibrilation	45
Heart Failure	52
Chronic Obstructive Pulmonary Disease	27
Diabetes	43
Dementia	23
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2020 were minimally invasive procedures, hospital care, inpatient care and cardiac procedures.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	20
cardiac procedures	53
catheterization	20
diagnostic procedures	20
doctor visit	122
hospital care	66
implant surgery	11
inpatient care	66
minimally invasive procedures	73
ultrasound (sonogram)	22

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	685
Female	501

**Ethnicity**
Non-Hispanic White	903
Black	126
Hispanic	85
Asian	0
Other	39
Native American	0

**Age**
From 65 to 74	423
From 75 to 84	379
85 and over	220
Less than 65	164

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2020

Hypertension	75
High Cholesterol	70
Stroke	19
Ischemic Heart Disease	66
Depression	32
Chronic Kidney Disease	57
Asthma	11
Osteoperosis	8
Atrial Fibrilation	36
Heart Failure	47
Chronic Obstructive Pulmonary Disease	25
Diabetes	44
Dementia	25
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2021 were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	17
cardiac procedures	64
catheterization	17
diagnostic procedures	17
doctor visit	153
hospital care	99
implant surgery	30
implantable cardioverter-defibrillator (ICD) replacement	14
inpatient care	99
minimally invasive procedures	81
ultrasound (sonogram)	17

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	727
Female	621

**Ethnicity**
Non-Hispanic White	1016
Black	147
Hispanic	94
Asian	0
Other	52
Native American	0

**Age**
From 65 to 74	440
From 75 to 84	441
85 and over	256
Less than 65	211

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2021

Hypertension	75
High Cholesterol	74
Stroke	18
Ischemic Heart Disease	68
Depression	30
Chronic Kidney Disease	54
Asthma	10
Osteoperosis	9
Atrial Fibrilation	36
Heart Failure	48
Chronic Obstructive Pulmonary Disease	23
Diabetes	44
Dementia	25
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2022 were minimally invasive procedures, hospital care, inpatient care and cardiac procedures.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	29
cardiac procedures	56
catheterization	29
diagnostic procedures	29
doctor visit	182
hospital care	73
implant surgery	27
inpatient care	73
minimally invasive procedures	85

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	661
Female	570

**Ethnicity**
Non-Hispanic White	934
Black	111
Hispanic	88
Asian	0
Other	57
Native American	0

**Age**
From 65 to 74	400
From 75 to 84	427
85 and over	238
Less than 65	166

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	28
Ischemic Heart Disease	60
Depression	30
Chronic Kidney Disease	39
Asthma	13
Osteoperosis	15
Atrial Fibrilation	51
Heart Failure	45
Chronic Obstructive Pulmonary Disease	28
Diabetes	44
Dementia	21
Cancer	19

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2023 were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	27
cardiac procedures	54
catheterization	27
diagnostic procedures	27
doctor visit	198
hospital care	143
implant surgery	27
implantable cardioverter-defibrillator (ICD) replacement	12
inpatient care	143
minimally invasive procedures	81

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	585
Female	496

**Ethnicity**
Non-Hispanic White	804
Black	93
Hispanic	88
Asian	0
Other	59
Native American	0

**Age**
From 65 to 74	350
From 75 to 84	391
85 and over	217
Less than 65	123

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	27
Ischemic Heart Disease	63
Depression	28
Chronic Kidney Disease	38
Asthma	13
Osteoperosis	13
Atrial Fibrilation	55
Heart Failure	47
Chronic Obstructive Pulmonary Disease	27
Diabetes	46
Dementia	18
Cancer	19

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY during 2024 were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

ablation	15
cardiac procedures	27
catheterization	15
diagnostic procedures	15
doctor visit	218
hospital care	137
implant surgery	12
inpatient care	137
minimally invasive procedures	42

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Male	498
Female	415

**Ethnicity**
Non-Hispanic White	694
Black	69
Hispanic	66
Asian	0
Other	54
Native American	0

**Age**
From 65 to 74	289
From 75 to 84	354
85 and over	183
Less than 65	87

Conditions of Medicare patients treated by Dr. Sei Iwai, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	29
Ischemic Heart Disease	60
Depression	27
Chronic Kidney Disease	38
Asthma	11
Osteoperosis	14
Atrial Fibrilation	54
Heart Failure	44
Chronic Obstructive Pulmonary Disease	28
Diabetes	45
Dementia	18
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Sei Iwai, MD for Medicare patients.

The highest averages for the top procedures that Dr. Sei Iwai, MD treated as a cardiac electrophysiologist in Valhalla, NY were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

ablation	25
cardiac procedures	69
cardioversion	15
catheterization	25
diagnostic procedures	28
doctor visit	155
hospital care	103
implant surgery	27
implantable cardioverter-defibrillator (ICD) replacement	15
inpatient care	103
minimally invasive procedures	89
ultrasound (sonogram)	22

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Sei Iwai, MD.

**Gender**
Female	289
Male	383

**Ethnicity**
Black / African American	62
Asian / Pacific Islander	0
Non-Hispanic White	515
Native American / Alaskan Native	0
Hispanic	46
Other	23

**Age**
85 and over	127
75 to 84	230
Less than 65	87
65 to 74	227

Average of Total of Conditions of Medicare patients treated by Dr. Sei Iwai, MD From 2012 - 2024

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

Hypertension	69
High Cholesterol	67
Stroke	18
Ischemic Heart Disease	62
Depression	23
Chronic Kidney Disease	41
Asthma	11
Osteoporosis	7
Heart Failure	49
Chronic Obstructive Pulmonary Disease	22
Diabetes	41
Atrial Fibrillation	46
Cancer	13
Dementia	17

Education & Training

Dr. Sei Iwai, MD graduated from Columbia University, College of Physicians and Surgeons in 1994. He completed residency at Ny And Presby Hosp, Cardiovascular Diseases; Ny & Presby Hp-Columbia Campus, Internal Medicine. He is certified by the Board Certification: Clinical Cardiac Electrophysiology and has a state license in New York.

Medical School: Columbia University, College of Physicians and Surgeons (1994)

Residency: Ny And Presby Hosp, Cardiovascular Diseases; Ny & Presby Hp-Columbia Campus, Internal Medicine

Board Certification: Board Certification: Clinical Cardiac Electrophysiology

Licensed In: New York

Affiliations & Hospitals

Dr. Sei Iwai, MD is associated with these hospitals and organizations:

WMCHealth

Ratings & Reviews

Dr. Sei Iwai, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 11 ratings. We collect ratings and reviews of Dr. Sei Iwai, MD from all over the web to help you find the right in Valhalla, NY.

Overall Rating

(11 Ratings)

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General Payments

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

**Payments by Company**
Janssen Pharmaceuticals, Inc	$72,894 XARELTO $72,818	INVOKANA $74	$3
BIOTRONIK INC.	$69,881 Bradycardia products $20,823	Iforia; Linoxsmart; Setrox; $1,938	Setrox $1,432	Acticor $1,255	Passeo $1,214	Other $43,219
Biosense Webster, Inc.	$15,560 Carto 3 System $10,398	Ablation CathetersAccessories $3,252	Carto 3 $919	Confidense $255	CONFIDENCE $218	Other $517
Medtronic Vascular, Inc.	$9,319 Implantable Cardioverter Defibrillators - ICDs $4,033	Micra $936	Visia AF $900	Advisa $380	Cardiac Resynchronization Therapy - CRT $261	Other $2,809
Boston Scientific Corporation	$7,183 GENERAL THERAPIES $2,605	Tachy System $957	WATCHMAN $792	TACHY GENERATOR $159	Emblem S-ICD $139	Other $2,531
Other	$12,586 Electrophysiology $2,981	Sotalol Hydrochloride $2,040	Carto 3 $839	vMap $500	OPTIMIZER $385	Other $5,840

**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	$75,445
Travel and Lodging	$35,321
Food and Beverage	$31,632
Compensation for serving as faculty or as a speaker for a non-accredited and noncertified continuing education program	$22,100
Consulting Fee	$19,324
Other	$3,601

Research Payments

Dr. Sei Iwai, MD has received 425 research payments totaling $149,215.

Biography

Dr Sei Iwai is a renowned cardiac electrophysiologist with clinical expertise in the diagnosis and treatment of complex cardiac arrhythmias. He has vast experience in catheter ablation of arrhythmias such as atrial fibrillation and ventricular tachycardia, including via the use of 3-dimensional mapping systems, percutaneous circulatory support devices, robotic catheter manipulation, and epicardial access. In addition, he performs both implantations and laser extractions of cardiac pacemakers, implantable defibrillators (ICDs), and cardiac resynchronization therapy (biventricular) devices.He has lectured throughout the United States as well as in Europe on various topics related to cardiac electrophysiology.