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Home > CA Providers > Vascular Surgeons

Dr. Garabed P. Nishanian, MD

Accepting New Patients

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Specializes in: Vascular Surgery

Tulane University School of Medicine

1050 Linden Avenue
Long Beach, CA 90813

(562) 491-9000

Dr. Garabed P. Nishanian, MD is a vascular surgeon in Irvine, CA specializing in vascular surgery. He graduated from Tulane University School of Medicine. Dr. Garabed P. Nishanian, MD is affiliated with Dignity Health, Hoag and Vascular and Endovascular Institute of Orange Count, A Medical Corporation.

Office Locations

Vascular and Endovascular Institute of Orange Count, A Medical Corporation

16100 Sand Canyon Avenue Suite 350
Irvine, CA 92618

(949) 429-8840

(949) 347-9647

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Dignity Health

1050 Linden Avenue
Long Beach, CA 90813

(562) 491-9000

(562) 491-9272

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Noteworthy Medicare Patient Procedures Performed by Dr. Garabed P. Nishanian, MD in 2023

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

Top 10%

By Affordability:

abdominal duplex ultrasound

abdominal imaging

abdominal ultrasound

dialysis access procedures

hemodialysis access procedures

pelvic duplex ultrasound

pelvic imaging

pelvic ultrasound

testicular duplex ultrasound

testicular ultrasound

In 2023, Dr. Garabed P. Nishanian, MD had a list price for abdominal duplex ultrasound, abdominal imaging, abdominal ultrasound, dialysis access procedures, hemodialysis access procedures, pelvic duplex ultrasound, pelvic imaging, pelvic ultrasound, testicular duplex ultrasound, and testicular ultrasound that was lower than the list prices billed to Medicare by 90% 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 25%

By Volume:

carotid duplex ultrasound

lower extremity venous duplex

vascular procedures

vascular ultrasound

By Affordability:

arterial duplex ultrasound

arterial ultrasound

carotid duplex ultrasound

endovenous radiofrequency ablation

hemodialysis access duplex ultrasound

hemodialysis access imaging

hospital care

inpatient care

inpatient hospital care

lower extremity arterial duplex

lower extremity arterial ultrasound

lower extremity venous ultrasound

lower extremity venous duplex

vascular access ultrasound

vascular imaging

vascular studies

vascular ultrasound

venous duplex ultrasound

venous ultrasound

In 2012, among providers in related specialties within California, Dr. Garabed P. Nishanian, MD performed more carotid duplex ultrasound, lower extremity venous duplex, vascular procedures, and vascular ultrasound procedures for Medicare patients than 75% of them and he also had a list price for arterial duplex ultrasound, arterial ultrasound, carotid duplex ultrasound, carotid ultrasound, catheter ablation, duplex ultrasound, endovenous ablation, endovenous radiofrequency ablation (Venefit procedure), hemodialysis access duplex ultrasound, hemodialysis access imaging, hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), lower extremity arterial duplex, lower extremity (leg) arterial ultrasound, lower extremity (leg) venous ultrasound, lower extremity venous duplex, vascular access ultrasound, vascular imaging, vascular studies, vascular ultrasound, venous duplex ultrasound, 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. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2012 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

abdominal imaging	23
angioplasty	23
catheterization	17
debridement (removal of unhealthy tissue)	64
dialysis access procedures	51
doctor visit	476
hospital care	173
inpatient care	173
pelvic imaging	23
ultrasound (sonogram)	287
vascular procedures	323
X-rays	18

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2013 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

abdominal imaging	26
angioplasty	19
catheterization	26
debridement (removal of unhealthy tissue)	68
dialysis access procedures	46
doctor visit	482
hospital care	160
inpatient care	160
pelvic imaging	26
ultrasound (sonogram)	409
vascular procedures	486
X-rays	17

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	265
Female	229

**Ethnicity**
Non-Hispanic White	373
Black	0
Hispanic	64
Asian	34
Other	0
Native American	0

**Age**
From 65 to 74	167
From 75 to 84	171
85 and over	101
Less than 65	55

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2013

Hypertension	75
High Cholesterol	70
Stroke	21
Ischemic Heart Disease	57
Depression	25
Chronic Kidney Disease	50
Asthma	7
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	35
Chronic Obstructive Pulmonary Disease	19
Diabetes	45
Dementia	16
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2014 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

abdominal imaging	20
debridement (removal of unhealthy tissue)	62
device removal	13
dialysis access procedures	38
doctor visit	428
hospital care	101
inpatient care	101
pelvic imaging	20
ultrasound (sonogram)	341
vascular procedures	394

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	160
Female	162

**Ethnicity**
Non-Hispanic White	251
Black	0
Hispanic	28
Asian	27
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	129
85 and over	71
Less than 65	29

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2014

Hypertension	75
High Cholesterol	70
Stroke	21
Ischemic Heart Disease	56
Depression	23
Chronic Kidney Disease	48
Asthma	10
Osteoperosis	10
Atrial Fibrilation	23
Heart Failure	34
Chronic Obstructive Pulmonary Disease	19
Diabetes	41
Dementia	17
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2015 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

abdominal imaging	15
dialysis access procedures	22
doctor visit	305
hospital care	105
inpatient care	105
pelvic imaging	15
ultrasound (sonogram)	386
vascular procedures	421

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	380
Female	376

**Ethnicity**
Non-Hispanic White	624
Black	0
Hispanic	62
Asian	42
Other	0
Native American	0

**Age**
From 65 to 74	246
From 75 to 84	292
85 and over	172
Less than 65	46

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2015

Hypertension	75
High Cholesterol	73
Stroke	23
Ischemic Heart Disease	56
Depression	25
Chronic Kidney Disease	39
Asthma	19
Osteoperosis	11
Atrial Fibrilation	31
Heart Failure	32
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	18
Cancer	16

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2016 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

abdominal imaging	13
angioplasty	34
catheterization	16
debridement (removal of unhealthy tissue)	28
dialysis access procedures	85
doctor visit	415
hospital care	164
inpatient care	164
pelvic imaging	13
ultrasound (sonogram)	405
vascular procedures	483
X-rays	38

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	194
Female	183

**Ethnicity**
Non-Hispanic White	291
Black	0
Hispanic	27
Asian	33
Other	14
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	141
85 and over	82
Less than 65	24

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2016

Hypertension	75
High Cholesterol	73
Stroke	21
Ischemic Heart Disease	51
Depression	21
Chronic Kidney Disease	46
Asthma	19
Osteoperosis	11
Atrial Fibrilation	25
Heart Failure	30
Chronic Obstructive Pulmonary Disease	17
Diabetes	36
Dementia	19
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2017 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

dialysis access procedures	82
doctor visit	348
hospital care	95
inpatient care	95
ultrasound (sonogram)	399
vascular procedures	432

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	170
Female	183

**Ethnicity**
Non-Hispanic White	278
Black	0
Hispanic	21
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	119
From 75 to 84	127
85 and over	84
Less than 65	23

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2017

Hypertension	75
High Cholesterol	67
Stroke	27
Ischemic Heart Disease	52
Depression	24
Chronic Kidney Disease	50
Asthma	12
Osteoperosis	12
Atrial Fibrilation	23
Heart Failure	38
Chronic Obstructive Pulmonary Disease	20
Diabetes	40
Dementia	19
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2018 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

device removal	13
dialysis access procedures	55
doctor visit	317
hospital care	153
inpatient care	153
ultrasound (sonogram)	419
vascular procedures	456

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	171
Female	223

**Ethnicity**
Non-Hispanic White	303
Black	0
Hispanic	25
Asian	42
Other	0
Native American	0

**Age**
From 65 to 74	131
From 75 to 84	151
85 and over	89
Less than 65	23

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2018

Hypertension	75
High Cholesterol	70
Stroke	18
Ischemic Heart Disease	53
Depression	26
Chronic Kidney Disease	49
Asthma	10
Osteoperosis	15
Atrial Fibrilation	22
Heart Failure	38
Chronic Obstructive Pulmonary Disease	18
Diabetes	37
Dementia	21
Cancer	18

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2019 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

abdominal imaging	14
ablation	44
dialysis access procedures	25
doctor visit	311
hospital care	147
inpatient care	147
minimally invasive procedures	44
pelvic imaging	14
ultrasound (sonogram)	670
vascular procedures	746

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	305
Female	316

**Ethnicity**
Non-Hispanic White	500
Black	0
Hispanic	34
Asian	53
Other	0
Native American	0

**Age**
From 65 to 74	215
From 75 to 84	249
85 and over	132
Less than 65	25

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2019

Hypertension	75
High Cholesterol	72
Stroke	19
Ischemic Heart Disease	53
Depression	25
Chronic Kidney Disease	43
Asthma	10
Osteoperosis	14
Atrial Fibrilation	27
Heart Failure	36
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	16
Cancer	18

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2020 were vascular procedures, ultrasound (sonogram), minimally invasive procedures and pelvic imaging.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

abdominal imaging	99
angioplasty	36
dialysis access procedures	44
doctor visit	711
hospital care	83
inpatient care	83
minimally invasive procedures	115
pelvic imaging	99
thrombectomy (blood clot removal)	17
tilt table test	38
ultrasound (sonogram)	997
vascular procedures	1307

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	347
Female	403

**Ethnicity**
Non-Hispanic White	389
Black	56
Hispanic	230
Asian	50
Other	25
Native American	0

**Age**
From 65 to 74	288
From 75 to 84	268
85 and over	133
Less than 65	61

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	51
Depression	29
Chronic Kidney Disease	49
Asthma	13
Osteoperosis	13
Atrial Fibrilation	17
Heart Failure	33
Chronic Obstructive Pulmonary Disease	19
Diabetes	51
Dementia	18
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2021 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

abdominal imaging	13
ablation	36
dialysis access procedures	35
doctor visit	545
hospital care	108
inpatient care	108
minimally invasive procedures	36
pelvic imaging	13
ultrasound (sonogram)	958
vascular procedures	1107

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	392
Female	451

**Ethnicity**
Non-Hispanic White	472
Black	54
Hispanic	231
Asian	62
Other	24
Native American	0

**Age**
From 65 to 74	339
From 75 to 84	322
85 and over	136
Less than 65	46

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	19
Ischemic Heart Disease	51
Depression	27
Chronic Kidney Disease	48
Asthma	10
Osteoperosis	12
Atrial Fibrilation	20
Heart Failure	33
Chronic Obstructive Pulmonary Disease	15
Diabetes	47
Dementia	18
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2022 were vascular procedures, ultrasound (sonogram), minimally invasive procedures and hospital care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

abdominal imaging	72
angioplasty	36
dialysis access procedures	29
doctor visit	454
hospital care	77
inpatient care	77
minimally invasive procedures	108
pelvic imaging	72
thrombectomy (blood clot removal)	19
ultrasound (sonogram)	1059
vascular procedures	1328

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	388
Female	500

**Ethnicity**
Non-Hispanic White	557
Black	0
Hispanic	210
Asian	69
Other	29
Native American	0

**Age**
From 65 to 74	362
From 75 to 84	315
85 and over	163
Less than 65	48

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	22
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	32
Asthma	14
Osteoperosis	19
Atrial Fibrilation	27
Heart Failure	27
Chronic Obstructive Pulmonary Disease	17
Diabetes	45
Dementia	12
Cancer	19

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA during 2023 were vascular procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

abdominal imaging	34
ablation	44
dialysis access procedures	18
doctor visit	239
hospital care	113
inpatient care	113
minimally invasive procedures	44
pelvic imaging	34
ultrasound (sonogram)	789
vascular procedures	888

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Male	315
Female	404

**Ethnicity**
Non-Hispanic White	519
Black	17
Hispanic	84
Asian	72
Other	27
Native American	0

**Age**
From 65 to 74	223
From 75 to 84	289
85 and over	182
Less than 65	25

Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	26
Ischemic Heart Disease	41
Depression	22
Chronic Kidney Disease	35
Asthma	13
Osteoperosis	23
Atrial Fibrilation	32
Heart Failure	30
Chronic Obstructive Pulmonary Disease	20
Diabetes	33
Dementia	14
Cancer	24

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Garabed P. Nishanian, MD for Medicare patients.

The highest averages for the top procedures that Dr. Garabed P. Nishanian, MD treated as a vascular surgeon in Irvine, CA were vascular procedures, ultrasound (sonogram), inpatient care and hospital care.

abdominal imaging	32
ablation	41
angioplasty	29
catheterization	19
debridement (removal of unhealthy tissue)	55
device removal	13
dialysis access procedures	44
doctor visit	419
hospital care	123
inpatient care	123
minimally invasive procedures	69
pelvic imaging	32
thrombectomy (blood clot removal)	18
ultrasound (sonogram)	593
vascular procedures	697
X-rays	24

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Garabed P. Nishanian, MD.

**Gender**
Female	285
Male	257

**Ethnicity**
Black / African American	10
Asian / Pacific Islander	43
Non-Hispanic White	379
Hispanic	84
Native American / Alaskan Native	0
Other	9

**Age**
85 and over	112
75 to 84	204
Less than 65	33
65 to 74	192

Average of Total of Conditions of Medicare patients treated by Dr. Garabed P. Nishanian, MD From 2012 - 2023

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

Hypertension	68
High Cholesterol	66
Stroke	19
Ischemic Heart Disease	46
Depression	22
Chronic Kidney Disease	40
Asthma	11
Osteoporosis	12
Heart Failure	30
Chronic Obstructive Pulmonary Disease	16
Diabetes	36
Atrial Fibrillation	22
Dementia	15
Cancer	15

Education & Training

Dr. Garabed P. Nishanian, MD graduated from Tulane University School of Medicine. He completed residency at Harbor-UCLA Medical Center. He is certified by the American Board of Surgery and has a state license in California.

Medical School: Tulane University School of Medicine

Residency: Harbor-UCLA Medical Center

Board Certification: American Board of Surgery

Licensed In: California

Affiliations & Hospitals

Dr. Garabed P. Nishanian, MD is associated with these hospitals and organizations:

Dignity Health

Hoag

Vascular and Endovascular Institute of Orange Count, A Medical Corporation

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. Garabed P. Nishanian, MD appears to accept the following insurance providers: Aetna, Cigna, Anthem, Blue Shield, United Healthcare and Scan.

Insurance Accepted by Provider includes:

According to our sources, Dr. Garabed P. Nishanian, MD accepts the following insurance providers:

Aetna

Cigna

Anthem

Blue Shield

United Healthcare

Scan

Ratings & Reviews

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General Payments

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

**Payments by Company**
Pfizer Inc.	$319 ELIQUIS $319
Biocompatibles, Inc.	$270 VARITHENA $270
Medtronic Vascular, Inc.	$244 Aptus Heli-FX $129	Aortic Stent Grafts $114
Boston Scientific Corporation	$215 Varithena Administration Pack $125	SPACEOAR VUE $66	ULTRASOUND PROBE $24
Inari Medical, Inc.	$163 CT THROMBECTOMY SYSTEM KIT $163
Other	$1,215 ENROUTE Transcarotid Stent $159	Vascular $143	XARELTO $136	VALVULOTOM $132	(5027) Intact Vascular Undivided $114	Other $530

**Types of Payments**
Food and Beverage	$2,426

Biography

Dr. Garabed Nishanian is a specialist in vascular surgery in Irvine, CA and Long Beach, CA. Before performing his residency at Harbor-UCLA Medical Center and Kaiser Permanente Los Angeles Medical Center, Dr. Nishanian attended Tulane University School of Medicine. He can take several insurance carriers, including Blue Shield, Anthem, and Blue California. Dr. Nishanian's hospital/clinic affiliations include Hoag and Dignity Health. According to Doctor.com, new patients are welcome to contact Dr. Nishanian's office in Irvine, CA.