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Home > CA Providers > Vascular Surgeons

Dr. Sydney S. Guo, MD

Accepting New Patients

(Dr. Sydney Shuo-Yi Guo, MD)

(No ratings)

Specializes in: Vascular Surgery and General Surgery

New York University (NYU) School of Medicine

2605 Loma Vista Road
Ventura, CA 93003

(805) 456-8890

Dr. Sydney S. Guo, MD is a vascular surgeon in Ventura, CA specializing in vascular surgery and general surgery. He graduated from New York University (NYU) School of Medicine. Dr. Sydney S. Guo, MD is affiliated with Dignity Health, KEVIN M CASEY MD APMC, DHMN - Ventura DHMN - Santa Cruz and St John's Regional Med Center/St John's Hospital Camarillo.

Office Locations

100 North Brent Street Suite 201
Ventura, CA 93003

(805) 643-3330

(805) 643-3331

open_in_new

1901 Outlet Center Drive Suite 210
Oxnard, CA 93036

open_in_new

St John's Regional Med Center/St John's Hospital Camarillo

2605 Loma Vista Road
Ventura, CA 93003

(805) 456-8890

(805) 456-8894

open_in_new

In The News

“The company also has added three surgeons to its team: Dr. Daniel Alfson (Santa Barbara), Dr. Edward Li (Santa Barbara) and Dr. Sydney Guo (Ventura County Vascular Specialists in Oxnard and Ventura).”—"BizHawk: After 25 Years, Goleta Coffee Co. Era Coming to an End | Business | Noozhawk", Noozhawk, January 2022

Noteworthy Medicare Patient Procedures Performed by Dr. Sydney S. Guo, MD in 2023

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

Top 5%

By Affordability:

pelvic angiogram

pelvic arteriogram

In 2023, Dr. Sydney S. Guo, MD had a list price for pelvic angiogram, and pelvic arteriogram 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:

central line placement

hemodialysis access procedures

By Affordability:

AV fistula surgery

peripheral artery stenting

In 2023, among providers in related specialties within California, Dr. Sydney S. Guo, MD performed more central line placement, and hemodialysis access procedures procedures for Medicare patients than 90% of them and he also had a list price for AV fistula surgery, and peripheral artery stenting 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:

arteriogram

arteriovenous anastomosis

hemodialysis access duplex ultrasound

inpatient hospital care

lower extremity angioplasty

ultrasound

vascular procedures

By Affordability:

anastomosis

arteriovenous anastomosis

AV graft surgery

centrally inserted non-tunneled central line placement

device removal

hemodialysis access surgery

lower extremity artery stenting

peripheral vascular interventions

peripheral vascular stenting

tunneled central line removal

vascular anastomosis

In 2012, among providers in related specialties within California, Dr. Sydney S. Guo, MD performed more arteriogram, arteriovenous (AV) anastomosis, hemodialysis access duplex ultrasound, inpatient hospital care (for patient admitted to hospital), lower extremity (leg) angioplasty, ultrasound (sonogram), and vascular procedures procedures for Medicare patients than 75% of them and he also had a list price for anastomosis, arteriovenous (AV) anastomosis, AV graft surgery, centrally inserted non-tunneled central line placement, device removal, hemodialysis access surgery, lower extremity (leg) artery stenting, peripheral vascular interventions, peripheral vascular stenting, tunneled central line removal, and vascular anastomosis 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. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2012 were vascular procedures, ultrasound (sonogram), lab tests and dialysis access procedures.

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

ablation	64
anastomosis	17
angioplasty	121
catheterization	39
device removal	11
dialysis access procedures	302
doctor visit	879
hospital care	29
inpatient care	29
lab tests	317
laser treatment	32
minimally invasive procedures	215
pelvic imaging	29
stent placement (stenting)	39
thrombectomy (blood clot removal)	19
ultrasound (sonogram)	536
vascular procedures	1220
X-rays	75

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2013 were vascular procedures, ultrasound (sonogram), lab tests and dialysis access procedures.

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

ablation	44
angioplasty	114
device removal	14
dialysis access procedures	246
doctor visit	865
hospital care	28
injections	14
inpatient care	28
lab tests	248
laser treatment	15
minimally invasive procedures	115
pelvic imaging	42
stent placement (stenting)	11
ultrasound (sonogram)	482
vascular procedures	956
X-rays	75

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	236
Female	223

**Ethnicity**
Non-Hispanic White	296
Black	0
Hispanic	140
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	146
85 and over	91
Less than 65	71

Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD in 2013

Hypertension	75
High Cholesterol	69
Stroke	12
Ischemic Heart Disease	57
Depression	21
Chronic Kidney Disease	54
Asthma	8
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	40
Chronic Obstructive Pulmonary Disease	21
Diabetes	57
Dementia	14
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2014 were vascular procedures, ultrasound (sonogram), lab tests and dialysis access procedures.

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

abdominal imaging	17
ablation	98
angioplasty	122
catheterization	36
device removal	14
dialysis access procedures	282
doctor visit	1048
hospital care	19
inpatient care	19
lab tests	327
laser treatment	14
minimally invasive procedures	237
pelvic imaging	58
stent placement (stenting)	27
thrombectomy (blood clot removal)	12
ultrasound (sonogram)	626
vascular procedures	1280
X-rays	25

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	278
Female	255

**Ethnicity**
Non-Hispanic White	300
Black	13
Hispanic	197
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	174
From 75 to 84	169
85 and over	94
Less than 65	96

Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD in 2014

Hypertension	75
High Cholesterol	66
Stroke	13
Ischemic Heart Disease	55
Depression	21
Chronic Kidney Disease	54
Asthma	8
Osteoperosis	7
Atrial Fibrilation	19
Heart Failure	39
Chronic Obstructive Pulmonary Disease	16
Diabetes	59
Dementia	13
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2015 were vascular procedures, ultrasound (sonogram), lab tests and dialysis access procedures.

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

abdominal imaging	16
ablation	116
anastomosis	13
angioplasty	99
catheterization	29
device removal	18
dialysis access procedures	283
doctor visit	1150
hospital care	57
injections	14
inpatient care	57
lab tests	285
laser treatment	21
minimally invasive procedures	239
pelvic imaging	53
stent placement (stenting)	42
ultrasound (sonogram)	781
vascular procedures	1438
X-rays	70

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	674
Female	568

**Ethnicity**
Non-Hispanic White	702
Black	0
Hispanic	454
Asian	44
Other	0
Native American	0

**Age**
From 65 to 74	434
From 75 to 84	374
85 and over	224
Less than 65	210

Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD in 2015

Hypertension	75
High Cholesterol	64
Stroke	13
Ischemic Heart Disease	55
Depression	22
Chronic Kidney Disease	55
Asthma	13
Osteoperosis	7
Atrial Fibrilation	20
Heart Failure	39
Chronic Obstructive Pulmonary Disease	18
Diabetes	57
Dementia	14
Cancer	7

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2016 were vascular procedures, ultrasound (sonogram), dialysis access procedures and lab tests.

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

ablation	64
anastomosis	27
angioplasty	131
catheterization	16
device removal	19
dialysis access procedures	337
doctor visit	1215
hospital care	55
inpatient care	55
lab tests	275
minimally invasive procedures	241
pelvic imaging	72
stent placement (stenting)	55
thrombectomy (blood clot removal)	16
ultrasound (sonogram)	746
vascular procedures	1532
X-rays	75

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	305
Female	302

**Ethnicity**
Non-Hispanic White	337
Black	13
Hispanic	218
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	191
From 75 to 84	187
85 and over	109
Less than 65	120

Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD in 2016

Hypertension	75
High Cholesterol	66
Stroke	12
Ischemic Heart Disease	54
Depression	23
Chronic Kidney Disease	60
Asthma	20
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	40
Chronic Obstructive Pulmonary Disease	18
Diabetes	56
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2017 were vascular procedures, ultrasound (sonogram), lab tests and dialysis access procedures.

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

abdominal imaging	27
ablation	57
anastomosis	20
angioplasty	12
catheterization	18
device removal	19
dialysis access procedures	227
doctor visit	1117
endarterectomy	11
hospital care	55
injections	13
inpatient care	55
lab tests	276
minimally invasive procedures	158
neck surgery	11
pelvic imaging	96
stent placement (stenting)	44
ultrasound (sonogram)	753
vascular procedures	1330

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	322
Female	282

**Ethnicity**
Non-Hispanic White	341
Black	17
Hispanic	209
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	197
From 75 to 84	191
85 and over	113
Less than 65	103

Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD in 2017

Hypertension	75
High Cholesterol	63
Stroke	10
Ischemic Heart Disease	54
Depression	24
Chronic Kidney Disease	59
Asthma	6
Osteoperosis	6
Atrial Fibrilation	19
Heart Failure	37
Chronic Obstructive Pulmonary Disease	16
Diabetes	50
Dementia	16
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2018 were vascular procedures, ultrasound (sonogram), dialysis access procedures and lab tests.

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

abdominal imaging	28
ablation	48
anastomosis	16
angioplasty	22
catheterization	12
device removal	26
dialysis access procedures	287
doctor visit	1143
hospital care	59
injections	18
inpatient care	59
lab tests	266
minimally invasive procedures	163
pelvic imaging	90
stent placement (stenting)	55
ultrasound (sonogram)	1024
vascular procedures	1674

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	437
Female	386

**Ethnicity**
Non-Hispanic White	474
Black	0
Hispanic	266
Asian	35
Other	26
Native American	0

**Age**
From 65 to 74	276
From 75 to 84	270
85 and over	158
Less than 65	119

Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD in 2018

Hypertension	75
High Cholesterol	70
Stroke	9
Ischemic Heart Disease	54
Depression	25
Chronic Kidney Disease	61
Asthma	8
Osteoperosis	12
Atrial Fibrilation	19
Heart Failure	36
Chronic Obstructive Pulmonary Disease	18
Diabetes	54
Dementia	15
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2019 were vascular procedures, ultrasound (sonogram), dialysis access procedures and lab tests.

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

abdominal imaging	38
ablation	24
anastomosis	20
angioplasty	26
catheterization	43
device removal	12
dialysis access procedures	375
doctor visit	1164
endarterectomy	13
hospital care	73
inpatient care	73
lab tests	308
minimally invasive procedures	148
neck surgery	13
pelvic imaging	118
stent placement (stenting)	29
ultrasound (sonogram)	1382
vascular procedures	2199

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	560
Female	513

**Ethnicity**
Non-Hispanic White	648
Black	0
Hispanic	330
Asian	42
Other	32
Native American	0

**Age**
From 65 to 74	388
From 75 to 84	342
85 and over	205
Less than 65	138

Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD in 2019

Hypertension	75
High Cholesterol	71
Stroke	8
Ischemic Heart Disease	54
Depression	26
Chronic Kidney Disease	62
Asthma	7
Osteoperosis	11
Atrial Fibrilation	18
Heart Failure	38
Chronic Obstructive Pulmonary Disease	18
Diabetes	53
Dementia	16
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2020 were vascular procedures, ultrasound (sonogram), dialysis access procedures and pelvic imaging.

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

abdominal imaging	30
anastomosis	12
angioplasty	18
catheterization	28
device removal	21
dialysis access procedures	391
doctor visit	1099
hospital care	25
inpatient care	25
minimally invasive procedures	18
pelvic imaging	62
ultrasound (sonogram)	1240
vascular procedures	1725

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	535
Female	444

**Ethnicity**
Non-Hispanic White	570
Black	0
Hispanic	324
Asian	31
Other	30
Native American	0

**Age**
From 65 to 74	332
From 75 to 84	319
85 and over	171
Less than 65	157

Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD in 2020

Hypertension	75
High Cholesterol	70
Stroke	9
Ischemic Heart Disease	51
Depression	26
Chronic Kidney Disease	63
Asthma	7
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	38
Chronic Obstructive Pulmonary Disease	15
Diabetes	54
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2021 were vascular procedures, ultrasound (sonogram), dialysis access procedures and pelvic imaging.

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

abdominal imaging	30
ablation	26
anastomosis	15
angioplasty	15
catheterization	51
device removal	14
dialysis access procedures	387
doctor visit	1192
hospital care	46
inpatient care	46
minimally invasive procedures	70
pelvic imaging	71
ultrasound (sonogram)	1393
vascular procedures	1998

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	544
Female	519

**Ethnicity**
Non-Hispanic White	616
Black	0
Hispanic	345
Asian	41
Other	39
Native American	0

**Age**
From 65 to 74	405
From 75 to 84	349
85 and over	169
Less than 65	140

Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD in 2021

Hypertension	75
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	53
Depression	25
Chronic Kidney Disease	59
Asthma	8
Osteoperosis	14
Atrial Fibrilation	17
Heart Failure	34
Chronic Obstructive Pulmonary Disease	16
Diabetes	53
Dementia	13
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA during 2022 were vascular procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

anastomosis	36
angioplasty	38
catheterization	94
device removal	28
dialysis access procedures	73
doctor visit	735
hospital care	105
inpatient care	105
minimally invasive procedures	53
pelvic imaging	60
stent placement (stenting)	15
ultrasound (sonogram)	100
vascular procedures	401

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	223
Female	187

**Ethnicity**
Non-Hispanic White	202
Black	11
Hispanic	159
Asian	26
Other	0
Native American	0

**Age**
From 65 to 74	140
From 75 to 84	142
85 and over	75
Less than 65	53

Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	54
Depression	25
Chronic Kidney Disease	64
Asthma	11
Osteoperosis	15
Atrial Fibrilation	35
Heart Failure	45
Chronic Obstructive Pulmonary Disease	23
Diabetes	64
Dementia	11
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Sydney S. Guo, MD for Medicare patients.

The highest averages for the top procedures that Dr. Sydney S. Guo, MD treated as a vascular surgeon in Ventura, CA were vascular procedures, ultrasound (sonogram), dialysis access procedures and lab tests.

abdominal imaging	26
ablation	60
anastomosis	19
angioplasty	65
catheterization	36
device removal	17
dialysis access procedures	290
doctor visit	1055
endarterectomy	12
hospital care	50
injections	14
inpatient care	50
lab tests	287
laser treatment	20
minimally invasive procedures	150
neck surgery	12
pelvic imaging	68
stent placement (stenting)	35
thrombectomy (blood clot removal)	15
ultrasound (sonogram)	823
vascular procedures	1432
X-rays	64

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Sydney S. Guo, MD.

**Gender**
Male	374
Female	334

**Ethnicity**
Black / African American	4
Asian / Pacific Islander	26
Non-Hispanic White	407
Native American / Alaskan Native	0
Hispanic	240
Other	11

**Age**
75 to 84	226
85 and over	128
Less than 65	109
65 to 74	244

Average of Total of Conditions of Medicare patients treated by Dr. Sydney S. Guo, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Sydney S. Guo, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	68
High Cholesterol	62
Stroke	10
Ischemic Heart Disease	49
Depression	21
Chronic Kidney Disease	53
Asthma	8
Osteoporosis	9
Heart Failure	35
Chronic Obstructive Pulmonary Disease	16
Diabetes	50
Atrial Fibrillation	18
Dementia	12
Cancer	9

Education & Training

Dr. Sydney S. Guo, MD graduated from New York University (NYU) School of Medicine. He is certified by the Surgery Vascular Surgery and has a state license in Virginia.

Medical School: New York University (NYU) School of Medicine

Board Certification: Surgery Vascular Surgery

Licensed In: Virginia

Affiliations & Hospitals

Dr. Sydney S. Guo, MD is associated with these hospitals and organizations:

Dignity Health

KEVIN M CASEY MD APMC

DHMN - Ventura DHMN - Santa Cruz

St John's Regional Med Center/St John's Hospital Camarillo

Ratings & Reviews

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General Payments

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

**Payments by Company**
Endologix, Inc.	$1,058 OVATION $609	AFX $449
Medtronic Vascular, Inc.	$992 HawkOne $350	IN.PACT Admiral $160	ClosureFast $121	VenaSeal $51	QT Vascular Chocolate PTA Balloon $35	Other $275
Covidien Sales LLC	$628 Plaque Excision $237	CVI $196	PTA $113	Peripheral Vascular Stents $25	Procedural Support and Other $18	Other $40
Trivascular, Inc.	$590 AAA Stent Grafts $590
W. L. Gore & Associates, Inc.	$349 EXCLUDER AAA Endoprosthesis $207	EXCLUDER Iliac Branch Endoprosthesis $49	VIABAHN VBX Balloon Expandable Endoprosthesis $49	ACUSEAL Vascular Graft $44
Other	$1,536 ATHERECTOMY $203	Venclose Maven Catheter $109	RotarexS 6 F x 135 cm $109	Dermagraft $97	Abre $91	Other $928

**Types of Payments**
Food and Beverage	$4,226
Travel and Lodging	$881
Education	$46

Biography

Dr. Sydney Guo's medical specialty is general surgery and vascular surgery. Dr. Guo is professionally affiliated with Dignity Health. According to Dignity Health, he is currently accepting new patients at his office in Oxnard, CA. He graduated from New York University (NYU) School of Medicine. He is conversant in Mandarin.