Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > CA Providers > Neurosurgeons

Dr. Michael J. Dorsi, MD

Accepting New Patients

(426 Ratings)

Specializes in: Neurosurgery

Professional interests include: brain surgery, peripheral neuropathy, peripheral nerve surgery, and more.

141 Triunfo Canyon Road #110
Ventura, CA 93003

(805) 371-1393

Dr. Michael J. Dorsi, MD is a neurosurgeon in Ventura, CA specializing in neurosurgery. Dr. Michael J. Dorsi, MD is affiliated with Dignity Health, UCLA Health, UCLA Santa Monica Medical Center, UCLA West Valley Medical Center and St John's Regional Med Center/St John's Hospital Camarillo.

Office Locations

141 Triunfo Canyon Road #110
Ventura, CA 93003

open_in_new

1250 La Venta Drive
Westlake Village, CA 91361

open_in_new

Ventura, CA 93003

open_in_new

In The News (see more mentions in the news)

"Drs. Michael Dorsi, Mario Zuccarello & more: 9 spine, neurosurgeons making headlines", UCLA Health

"Spine surgeon leader to know: Dr. Michael Dorsi of Ventura County Neurosurgical Associates", UCLA Health

"Dr Michael Dorsi appointed to leadership role at UCLA", UCLA Health

Noteworthy Medicare Patient Procedures Performed by Dr. Michael J. Dorsi, MD in 2023

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

Top 10%

By Volume:

spinal cord stimulator implantation

spinal cord stimulator replacement

In 2023, Dr. Michael J. Dorsi, MD performed more spinal cord stimulator implantation, and spinal cord stimulator replacement procedures for Medicare patients than 90% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2012 were nerve procedures, decompression surgery and spinal procedures.

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

decompression surgery	22
doctor visit	82
nerve procedures	22
spinal procedures	22

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2013 were hospital care, inpatient care, emergency care and nerve procedures.

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

decompression surgery	12
doctor visit	269
emergency care	14
hospital care	73
inpatient care	73
nerve procedures	12
spinal procedures	12

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	101
Female	126

**Ethnicity**
Non-Hispanic White	184
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	67
85 and over	37
Less than 65	40

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2013

Hypertension	74
High Cholesterol	57
Stroke	15
Ischemic Heart Disease	39
Depression	37
Chronic Kidney Disease	27
Asthma	15
Osteoperosis	13
Atrial Fibrilation	16
Heart Failure	21
Chronic Obstructive Pulmonary Disease	13
Diabetes	26
Dementia	17
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2014 were hospital care, inpatient care, spinal procedures and emergency care.

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

arthrodesis (bone fusion surgery)	12
decompression surgery	23
doctor visit	409
emergency care	29
hospital care	81
inpatient care	81
minimally invasive procedures	12
nerve procedures	23
spinal procedures	35

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	127
Female	176

**Ethnicity**
Non-Hispanic White	233
Black	0
Hispanic	55
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	89
85 and over	42
Less than 65	51

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2014

Hypertension	71
High Cholesterol	54
Stroke	12
Ischemic Heart Disease	36
Depression	31
Chronic Kidney Disease	29
Asthma	9
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	25
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Dementia	12
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2015 were hospital care, inpatient care, spinal procedures and emergency care.

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

decompression surgery	19
doctor visit	398
emergency care	24
hospital care	109
inpatient care	109
nerve procedures	19
spinal procedures	31

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	294
Female	372

**Ethnicity**
Non-Hispanic White	454
Black	0
Hispanic	154
Asian	26
Other	0
Native American	0

**Age**
From 65 to 74	260
From 75 to 84	196
85 and over	98
Less than 65	112

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2015

Hypertension	74
High Cholesterol	59
Stroke	20
Ischemic Heart Disease	37
Depression	30
Chronic Kidney Disease	29
Asthma	16
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	29
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	11
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2016 were hospital care, inpatient care, spinal procedures and nerve procedures.

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

decompression surgery	21
doctor visit	505
hospital care	46
inpatient care	46
nerve procedures	21
spinal procedures	38

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	180
Female	205

**Ethnicity**
Non-Hispanic White	291
Black	0
Hispanic	63
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	160
From 75 to 84	134
85 and over	34
Less than 65	57

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2016

Hypertension	73
High Cholesterol	60
Stroke	11
Ischemic Heart Disease	38
Depression	30
Chronic Kidney Disease	32
Asthma	15
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	10
Diabetes	30
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2017 were spinal procedures, hospital care, inpatient care and nerve procedures.

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

arthrodesis (bone fusion surgery)	12
decompression surgery	23
doctor visit	431
hospital care	57
implant surgery	11
inpatient care	57
nerve procedures	23
neurostimulator replacement	11
spinal procedures	61

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	190
Female	181

**Ethnicity**
Non-Hispanic White	292
Black	0
Hispanic	46
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	188
From 75 to 84	116
85 and over	36
Less than 65	31

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2017

Hypertension	68
High Cholesterol	50
Stroke	11
Ischemic Heart Disease	34
Depression	26
Chronic Kidney Disease	29
Asthma	9
Osteoperosis	15
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	27
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2018 were spinal procedures, hospital care, inpatient care and neurostimulator lead placement.

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

decompression surgery	16
doctor visit	413
hospital care	50
implant surgery	25
inpatient care	50
nerve procedures	16
neurostimulator lead placement	25
neurostimulator replacement	25
spinal procedures	66

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	183
Female	174

**Ethnicity**
Non-Hispanic White	278
Black	0
Hispanic	52
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	170
From 75 to 84	126
85 and over	27
Less than 65	34

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2018

Hypertension	69
High Cholesterol	63
Stroke	11
Ischemic Heart Disease	38
Depression	30
Chronic Kidney Disease	29
Asthma	10
Osteoperosis	14
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	11
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2019 were spinal procedures, hospital care, inpatient care and neurostimulator replacement.

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

decompression surgery	12
doctor visit	356
hospital care	36
implant surgery	22
inpatient care	36
nerve procedures	12
neurostimulator lead placement	18
neurostimulator replacement	22
spinal procedures	52

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	147
Female	167

**Ethnicity**
Non-Hispanic White	259
Black	0
Hispanic	31
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	92
85 and over	19
Less than 65	27

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2019

Hypertension	66
High Cholesterol	59
Stroke	9
Ischemic Heart Disease	29
Depression	32
Chronic Kidney Disease	24
Asthma	11
Osteoperosis	17
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	26
Dementia	12
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2020 were hospital care, inpatient care, neurostimulator replacement and implant surgery.

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

doctor visit	359
hospital care	32
implant surgery	11
inpatient care	32
neurostimulator replacement	11
spinal procedures	11

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	160
Female	167

**Ethnicity**
Non-Hispanic White	263
Black	0
Hispanic	34
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	170
From 75 to 84	103
85 and over	23
Less than 65	31

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2020

Hypertension	68
High Cholesterol	64
Stroke	11
Ischemic Heart Disease	35
Depression	33
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	16
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2021 were spinal procedures, hospital care, inpatient care and arthrodesis (bone fusion surgery).

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

arthrodesis (bone fusion surgery)	27
decompression surgery	25
doctor visit	549
hospital care	47
implant surgery	21
inpatient care	47
minimally invasive procedures	13
nerve procedures	25
neurostimulator lead placement	20
neurostimulator replacement	21
spinal procedures	123

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	225
Female	242

**Ethnicity**
Non-Hispanic White	380
Black	0
Hispanic	40
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	253
From 75 to 84	145
85 and over	18
Less than 65	51

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2021

Hypertension	67
High Cholesterol	64
Stroke	8
Ischemic Heart Disease	34
Depression	31
Chronic Kidney Disease	28
Asthma	10
Osteoperosis	19
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA during 2022 were hospital care, inpatient care, spinal procedures and neurostimulator replacement.

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

doctor visit	462
hospital care	35
implant surgery	17
inpatient care	35
neurostimulator lead placement	14
neurostimulator replacement	17
spinal procedures	31

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	201
Female	200

**Ethnicity**
Non-Hispanic White	339
Black	0
Hispanic	27
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	228
From 75 to 84	116
85 and over	19
Less than 65	38

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	29
Depression	35
Chronic Kidney Disease	18
Asthma	16
Osteoperosis	23
Atrial Fibrilation	17
Heart Failure	11
Chronic Obstructive Pulmonary Disease	13
Diabetes	26
Dementia	6
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Michael J. Dorsi, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael J. Dorsi, MD treated as a neurosurgeon in Ventura, CA were hospital care, inpatient care, spinal procedures and emergency care.

arthrodesis (bone fusion surgery)	17
decompression surgery	19
doctor visit	384
emergency care	22
hospital care	56
implant surgery	17
inpatient care	56
minimally invasive procedures	12
nerve procedures	19
neurostimulator lead placement	19
neurostimulator replacement	17
spinal procedures	43

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Michael J. Dorsi, MD.

**Gender**
Male	164
Female	182

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	2
Non-Hispanic White	270
Native American / Alaskan Native	0
Hispanic	45
Other	10

**Age**
75 to 84	107
85 and over	32
Less than 65	42
65 to 74	164

Average of Total of Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Michael J. Dorsi, MD treated were hypertension, high cholesterol, ischemic heart disease and depression.

Hypertension	64
High Cholesterol	55
Stroke	11
Ischemic Heart Disease	31
Depression	28
Chronic Kidney Disease	24
Asthma	11
Osteoporosis	14
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	25
Atrial Fibrillation	11
Dementia	10
Cancer	12

Education & Training

He completed residency at Johns Hopkins University Affiliated Hospitals. He is certified by the American Board of Neurological Surgery and has a state license in Maryland.

Residency: Johns Hopkins University Affiliated Hospitals

Board Certification: American Board of Neurological Surgery

Licensed In: Maryland

Affiliations & Hospitals

Dr. Michael J. Dorsi, MD is associated with these hospitals and organizations:

Dignity Health

UCLA Health

UCLA Santa Monica Medical Center

UCLA West Valley Medical Center

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

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. Michael J. Dorsi, MD appears to accept the following insurance providers: Cigna, TRICARE, Private Healthcare Systems (PHCS), Aetna, Blue Shield of California, MultiPlan, Anthem, UnitedHealthcare, Medicare Advantage, Prime Health, First Health, HealthSmart, Health Net of California, Centivo and UFCM Health System.

Insurance Accepted by Provider includes:

According to our sources, Dr. Michael J. Dorsi, MD accepts the following insurance providers:

Cigna

TRICARE

Private Healthcare Systems (PHCS)

Aetna

Blue Shield of California

MultiPlan

Anthem

UnitedHealthcare

Medicare Advantage

Prime Health

First Health

HealthSmart

Health Net of California

Centivo

UFCM Health System

Ratings & Reviews

Dr. Michael J. Dorsi, MD has an exceptional overall rating with an average of 4.98 out of 5 stars based on 426 ratings. We collect ratings and reviews of Dr. Michael J. Dorsi, MD from all over the web to help you find the right in Ventura, CA.

4.98

Overall Rating

(426 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Nevro Corp.	$165,560 Senza Spinal Cord Stimulation System $111,389	Omnia $35,141	Senza $18,770	Nevro $130	Senza II $130
NUVASIVE, INC.	$110,370 XLIF $70,920	TLIF $11,589	Thoracolumbar $7,805	Modulus $3,208	Pulse $2,819	Other $14,028
The Institute of Musculoskeletal Science and Education	$97,574 Spira $30,669	Spira-L $27,850	Spira-C $8,065	$30,991
Abbott Laboratories	$68,212 PROCLAIM $65,072	Proclaim Family of SCS IPGs $1,482	Proclaim IPG $1,096	Penta SCS Leads $386	ETERNA $47	Other $129
Boston Scientific Corporation	$58,103 Precision $14,846	GENERAL PAIN MANAGEMENT $13,773	SPECTRA WAVEWRITER $9,436	SPECTRA $8,258	COVEREDGE $4,372	Other $7,417
Other	$95,703 PAINTEQ $13,581	5.5 Modular Screw system $10,682	VIPER $9,763	CREO MCS, Fenestrated, Sideloading $9,307	nanOss Advanced Bone Graft Substitute $7,800	Other $44,571

**Types of Payments**
Consulting Fee	$170,060
Royalty or License	$97,074
Compensation for serving as faculty or as a speaker for a non-accredited and noncertified continuing education program	$86,950
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$71,937
Food and Beverage	$61,292
Other	$108,209

Research Payments

Dr. Michael J. Dorsi, MD has received 9 research payments totaling $12,350.

Biography

Dr. Michael Dorsi is a medical specialist in neurosurgery. His patients gave him an average rating of 5.0 stars (out of 5). His areas of expertise include thoracic outlet syndrome, hematoma (pooled blood within tissue), and neurofibroma. Dr. Dorsi's hospital/clinic affiliations include UCLA Health and Dignity Health. Anthem, UnitedHealthcare, and Blue California appears to be the insurance carriers that Dr. Dorsi takes. Dr. Dorsi's practice in Westlake Village, CA is open to new patients as reported by UCLA Health. He attended medical school at Johns Hopkins University School of Medicine. His training includes a residency program at a hospital affiliated with Johns Hopkins University. He has received the following distinctions: Minimally Invasive Spine Surgeon of the Year: Sierra Spine Society; Spine Surgeon of the Year, Community Memorial Hospital; and Neurosurgeon of the year, American Society of Pain and Neuroscience. In addition to English, Dr. Dorsi speaks Spanish.

Select Year:

Dr. Michael J. Dorsi, MD

Office Locations

In The News (see more mentions in the news)

Noteworthy Medicare Patient Procedures Performed by Dr. Michael J. Dorsi, MD in 2023

By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Michael J. Dorsi, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Research Payments

Biography

Other Providers in Ventura, CA