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Home > CA Providers > Interventional Cardiologists

Dr. Mani Nallasivan, MD

Accepting New Patients

(5 Ratings)

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

University of Madras

424 E Yosemite Avenue
Merced, CA 95340

(209) 723-6882

Dr. Mani Nallasivan, MD is an interventional cardiologist in Merced, CA specializing in interventional cardiology, cardiac electrophysiology (heart rhythm) and adult cardiology. He graduated from University of Madras. Dr. Mani Nallasivan, MD is affiliated with Mercy Medical Center Merced and Dignity Health.

Office Locations

Dignity Health

424 E Yosemite Avenue
Merced, CA 95340

(209) 723-6882

(209) 723-6884

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Mani Nallasivan, MD in 2023

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

Top 5%

By Affordability:

angiogram

intravenous infusion

In 2023, Dr. Mani Nallasivan, MD had a list price for angiogram (angiography), and intravenous (IV) infusion that was lower than the list prices billed to Medicare by 95% of providers in related specialties within California. 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 Volume:

cardiac procedures

lower extremity venous duplex

ultrasound

By Affordability:

arterial duplex ultrasound

arterial ultrasound

lower extremity arterial duplex

lower extremity arterial ultrasound

In 2023, among providers in related specialties within California, Dr. Mani Nallasivan, MD performed more cardiac procedures, lower extremity venous duplex, and ultrasound (sonogram) procedures for Medicare patients than 90% of them and he also had a list price for arterial duplex ultrasound, arterial ultrasound, lower extremity arterial duplex, and lower extremity (leg) arterial ultrasound that was lower than the list prices billed to Medicare by 90% 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.

Top 25%

By Volume:

ambulatory cardiac monitoring

cardiac stress testing

Doppler echocardiography

echocardiogram

lower extremity arterial duplex

vascular procedures

vascular ultrasound

By Affordability:

extremity arteriogram

Holter monitoring

hospital care

inpatient care

inpatient hospital care

venous ultrasound

In 2012, among providers in related specialties within California, Dr. Mani Nallasivan, MD performed more ambulatory cardiac monitoring, cardiac (heart) stress testing, Doppler echocardiography, echocardiogram (echo), lower extremity arterial duplex, vascular procedures, and vascular ultrasound procedures for Medicare patients than 75% of them and he also had a list price for extremity arteriogram, Holter monitoring, hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), and venous ultrasound 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

2012 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2012 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ambulatory monitoring	70
cardiac procedures	2217
cardioversion	23
catheterization	42
diagnostic procedures	30
doctor visit	3045
hospital care	589
implant surgery	16
inpatient care	576
minimally invasive procedures	59
nuclear scan	600
stress testing	1231
ultrasound (sonogram)	1057
vascular procedures	335

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2013 were cardiac procedures, stress testing, ultrasound (sonogram) and vascular procedures.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ambulatory monitoring	66
angioplasty	12
cardiac procedures	1981
cardioversion	17
catheterization	18
diagnostic procedures	18
doctor visit	3074
hospital care	402
implant surgery	28
implantable cardioverter-defibrillator (ICD) replacement	14
inpatient care	402
minimally invasive procedures	237
nuclear scan	549
stent placement (stenting)	31
stress testing	1114
thrombectomy (blood clot removal)	16
ultrasound (sonogram)	1003
vascular procedures	586

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	876
Female	1020

**Ethnicity**
Non-Hispanic White	1246
Black	126
Hispanic	444
Asian	45
Other	0
Native American	0

**Age**
From 65 to 74	678
From 75 to 84	702
85 and over	329
Less than 65	187

Conditions of Medicare patients treated by Dr. Mani Nallasivan, MD in 2013

Hypertension	75
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	60
Depression	17
Chronic Kidney Disease	38
Asthma	17
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	37
Chronic Obstructive Pulmonary Disease	26
Diabetes	47
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2014 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ambulatory monitoring	72
cardiac procedures	1975
cardioversion	17
doctor visit	2869
hospital care	333
inpatient care	333
minimally invasive procedures	132
nuclear scan	552
stress testing	1115
thrombectomy (blood clot removal)	13
ultrasound (sonogram)	887
vascular procedures	294

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	825
Female	943

**Ethnicity**
Non-Hispanic White	1138
Black	103
Hispanic	445
Asian	48
Other	0
Native American	0

**Age**
From 65 to 74	647
From 75 to 84	672
85 and over	289
Less than 65	160

Conditions of Medicare patients treated by Dr. Mani Nallasivan, MD in 2014

Hypertension	75
High Cholesterol	60
Stroke	8
Ischemic Heart Disease	55
Depression	18
Chronic Kidney Disease	37
Asthma	17
Osteoperosis	7
Atrial Fibrilation	19
Heart Failure	36
Chronic Obstructive Pulmonary Disease	24
Diabetes	45
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2015 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ablation	40
ambulatory monitoring	39
cardiac procedures	1815
catheterization	17
diagnostic procedures	17
doctor visit	2857
hospital care	278
inpatient care	278
laser treatment	20
minimally invasive procedures	164
nuclear scan	515
stent placement (stenting)	21
stress testing	1036
ultrasound (sonogram)	781
vascular procedures	283

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	1420
Female	1724

**Ethnicity**
Non-Hispanic White	2100
Black	170
Hispanic	726
Asian	86
Other	0
Native American	0

**Age**
From 65 to 74	1086
From 75 to 84	1186
85 and over	604
Less than 65	268

Conditions of Medicare patients treated by Dr. Mani Nallasivan, MD in 2015

Hypertension	75
High Cholesterol	60
Stroke	9
Ischemic Heart Disease	54
Depression	17
Chronic Kidney Disease	39
Asthma	21
Osteoperosis	7
Atrial Fibrilation	21
Heart Failure	33
Chronic Obstructive Pulmonary Disease	23
Diabetes	44
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2016 were cardiac procedures, ultrasound (sonogram), stress testing and vascular procedures.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ablation	64
ambulatory monitoring	44
cardiac procedures	1295
catheterization	15
diagnostic procedures	15
doctor visit	3105
hospital care	111
inpatient care	111
laser treatment	32
minimally invasive procedures	205
nuclear scan	170
stent placement (stenting)	13
stress testing	670
ultrasound (sonogram)	779
vascular procedures	499

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	663
Female	845

**Ethnicity**
Non-Hispanic White	982
Black	92
Hispanic	358
Asian	49
Other	0
Native American	0

**Age**
From 65 to 74	549
From 75 to 84	558
85 and over	275
Less than 65	126

Conditions of Medicare patients treated by Dr. Mani Nallasivan, MD in 2016

Hypertension	75
High Cholesterol	60
Stroke	8
Ischemic Heart Disease	64
Depression	17
Chronic Kidney Disease	42
Asthma	30
Osteoperosis	8
Atrial Fibrilation	18
Heart Failure	35
Chronic Obstructive Pulmonary Disease	25
Diabetes	45
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2017 were cardiac procedures, ultrasound (sonogram), stress testing and vascular procedures.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ablation	52
ambulatory monitoring	32
cardiac procedures	1122
doctor visit	3325
hospital care	65
inpatient care	65
laser treatment	26
minimally invasive procedures	290
nuclear scan	50
stress testing	553
ultrasound (sonogram)	750
vascular procedures	424

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	659
Female	789

**Ethnicity**
Non-Hispanic White	922
Black	77
Hispanic	378
Asian	43
Other	0
Native American	0

**Age**
From 65 to 74	573
From 75 to 84	510
85 and over	242
Less than 65	123

Conditions of Medicare patients treated by Dr. Mani Nallasivan, MD in 2017

Hypertension	75
High Cholesterol	53
Stroke	7
Ischemic Heart Disease	67
Depression	15
Chronic Kidney Disease	43
Asthma	16
Osteoperosis	7
Atrial Fibrilation	16
Heart Failure	38
Chronic Obstructive Pulmonary Disease	23
Diabetes	46
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2018 were cardiac procedures, stress testing, ultrasound (sonogram) and vascular procedures.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ablation	32
ambulatory monitoring	37
cardiac procedures	922
doctor visit	3083
hospital care	50
inpatient care	50
laser treatment	16
minimally invasive procedures	138
nuclear scan	225
stress testing	572
ultrasound (sonogram)	526
vascular procedures	321

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	670
Female	800

**Ethnicity**
Non-Hispanic White	925
Black	80
Hispanic	389
Asian	48
Other	0
Native American	0

**Age**
From 65 to 74	529
From 75 to 84	560
85 and over	258
Less than 65	123

Conditions of Medicare patients treated by Dr. Mani Nallasivan, MD in 2018

Hypertension	75
High Cholesterol	60
Stroke	7
Ischemic Heart Disease	61
Depression	15
Chronic Kidney Disease	44
Asthma	14
Osteoperosis	6
Atrial Fibrilation	16
Heart Failure	37
Chronic Obstructive Pulmonary Disease	24
Diabetes	47
Dementia	10
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2019 were cardiac procedures, ultrasound (sonogram), stress testing and vascular procedures.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ambulatory monitoring	42
cardiac procedures	867
doctor visit	2911
hospital care	73
inpatient care	73
minimally invasive procedures	145
nuclear scan	240
stress testing	473
ultrasound (sonogram)	546
vascular procedures	323

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	638
Female	813

**Ethnicity**
Non-Hispanic White	914
Black	82
Hispanic	370
Asian	53
Other	0
Native American	0

**Age**
From 65 to 74	544
From 75 to 84	525
85 and over	256
Less than 65	126

Conditions of Medicare patients treated by Dr. Mani Nallasivan, MD in 2019

Hypertension	75
High Cholesterol	62
Stroke	6
Ischemic Heart Disease	54
Depression	15
Chronic Kidney Disease	42
Asthma	17
Osteoperosis	6
Atrial Fibrilation	16
Heart Failure	35
Chronic Obstructive Pulmonary Disease	24
Diabetes	46
Dementia	10
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2020 were ultrasound (sonogram), cardiac procedures, vascular procedures and stress testing.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ambulatory monitoring	60
cardiac procedures	491
doctor visit	2181
hospital care	34
inpatient care	34
minimally invasive procedures	126
nuclear scan	69
stress testing	138
ultrasound (sonogram)	520
vascular procedures	341

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	557
Female	689

**Ethnicity**
Non-Hispanic White	782
Black	62
Hispanic	324
Asian	53
Other	0
Native American	0

**Age**
From 65 to 74	462
From 75 to 84	464
85 and over	207
Less than 65	113

Conditions of Medicare patients treated by Dr. Mani Nallasivan, MD in 2020

Hypertension	75
High Cholesterol	68
Stroke	5
Ischemic Heart Disease	51
Depression	14
Chronic Kidney Disease	43
Asthma	18
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	37
Chronic Obstructive Pulmonary Disease	24
Diabetes	49
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2021 were cardiac procedures, ultrasound (sonogram), vascular procedures and stress testing.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ambulatory monitoring	56
cardiac procedures	593
doctor visit	1860
hospital care	12
inpatient care	12
minimally invasive procedures	95
nuclear scan	108
stress testing	217
ultrasound (sonogram)	527
vascular procedures	308

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	531
Female	663

**Ethnicity**
Non-Hispanic White	748
Black	46
Hispanic	325
Asian	49
Other	0
Native American	0

**Age**
From 65 to 74	444
From 75 to 84	445
85 and over	211
Less than 65	94

Conditions of Medicare patients treated by Dr. Mani Nallasivan, MD in 2021

Hypertension	75
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	48
Depression	14
Chronic Kidney Disease	42
Asthma	17
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	33
Chronic Obstructive Pulmonary Disease	19
Diabetes	45
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA during 2022 were cardiac procedures, ultrasound (sonogram), vascular procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

ablation	56
ambulatory monitoring	89
cardiac procedures	622
doctor visit	2400
hospital care	11
implant surgery	12
inpatient care	11
laser treatment	28
minimally invasive procedures	170
nuclear scan	78
stress testing	156
ultrasound (sonogram)	567
vascular procedures	326

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	536
Female	751

**Ethnicity**
Non-Hispanic White	799
Black	48
Hispanic	357
Asian	51
Other	0
Native American	0

**Age**
From 65 to 74	470
From 75 to 84	487
85 and over	237
Less than 65	93

Conditions of Medicare patients treated by Dr. Mani Nallasivan, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	33
Depression	14
Chronic Kidney Disease	33
Asthma	21
Osteoperosis	12
Atrial Fibrilation	25
Heart Failure	28
Chronic Obstructive Pulmonary Disease	22
Diabetes	45
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Mani Nallasivan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mani Nallasivan, MD treated as an interventional cardiologist in Merced, CA were cardiac procedures, ultrasound (sonogram), stress testing and vascular procedures.

ablation	48
ambulatory monitoring	55
angioplasty	12
cardiac procedures	1263
cardioversion	19
catheterization	23
diagnostic procedures	20
doctor visit	2791
hospital care	178
implant surgery	18
implantable cardioverter-defibrillator (ICD) replacement	14
inpatient care	176
laser treatment	24
minimally invasive procedures	160
nuclear scan	286
stent placement (stenting)	21
stress testing	661
thrombectomy (blood clot removal)	14
ultrasound (sonogram)	722
vascular procedures	367

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Mani Nallasivan, MD.

**Gender**
Male	670
Female	821

**Ethnicity**
Black / African American	80
Asian / Pacific Islander	47
Non-Hispanic White	959
Native American / Alaskan Native	0
Hispanic	374
Other	0

**Age**
75 to 84	555
85 and over	264
Less than 65	128
65 to 74	543

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

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

Hypertension	68
High Cholesterol	57
Stroke	6
Ischemic Heart Disease	49
Depression	14
Chronic Kidney Disease	36
Asthma	17
Osteoporosis	6
Heart Failure	31
Chronic Obstructive Pulmonary Disease	21
Diabetes	41
Atrial Fibrillation	16
Dementia	9
Cancer	9

Education & Training

Dr. Mani Nallasivan, MD graduated from University of Madras. He is certified by the Internal Medicine Internal Medicine (Sub: Cardiovascular Disease) and has a state license in California.

Medical School: University of Madras

Board Certification: Internal Medicine Internal Medicine (Sub: Cardiovascular Disease)

Licensed In: California

Affiliations & Hospitals

Dr. Mani Nallasivan, MD is associated with these hospitals and organizations:

Mercy Medical Center Merced

Dignity Health

Ratings & Reviews

Dr. Mani Nallasivan, MD has an average of 1.2 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Mani Nallasivan, MD from all over the web to help you find the right in Merced, CA.

1.2

Overall Rating

(5 Ratings)

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General Payments

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

**Payments by Company**
AngioDynamics, Inc.	$11,207 Auryon Laser System 100-120 Vac $11,083	$124
Boston Scientific Corporation	$2,787 TACHY GENERATOR $964	TACHY LEAD $750	Vascular Intervention $258	ATHERECTOMY $177	Tachy System $173	Other $465
Janssen Pharmaceuticals, Inc	$935 XARELTO $870	INVOKANA $65
Amgen Inc.	$879 Repatha $855	Corlanor $13	$11
BIOTRONIK INC.	$736 Bradycardia products $656	Acticor 7 VR-T DX $18	Acticor $15	AMVIA EDGE $14	BioMonitor $14	Other $18
Other	$5,233 ELIQUIS $375	Dayspring $257	ENTRESTO $225	TURBOELITE $213	PRALUENT $201	Other $3,963

**Types of Payments**
Long term medical supply or device loan	$11,083
Food and Beverage	$8,425
Travel and Lodging	$1,885
Consulting Fee	$292
Education	$91

Research Payments

Dr. Mani Nallasivan, MD has received 379 research payments totaling $263,842.

Biography

Dr. Mani Nallasivan's areas of specialization are adult cardiology, interventional cardiology, and cardiac electrophysiology (heart rhythm); he sees patients in Merced, CA. He is professionally affiliated with Mercy Medical Center Merced. Dr. Nallasivan is a graduate of the University of Madras. He is rated 1.0 stars (out of 5) by his patients. His practice in Merced, CA is open to new patients as reported by Dignity Health.