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Dr. Steve Won-Tze Chang, MD

Accepting New Patients

(Steve Chang, MD)

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Specializes in: Spine Surgery and Neurosurgery

University of North Carolina School of Medicine (2002)

Professional interests include: herniated disc, minimally invasive spine surgery, spinal cord tumor, and more.

1875 W Frye Road Suite 300
Chandler, AZ 85224

(480) 917-5600

Dr. Steve Won-Tze Chang, MD is a spine surgeon in Phoenix, AZ specializing in spine surgery and neurosurgery. He graduated from University of North Carolina School of Medicine in 2002 and has 22 years of experience. Dr. Steve Won-Tze Chang, MD is affiliated with Chandler Regional Medical Center, Mercy Gilbert Medical Center, Barrow Neurological Institute, Dignity Health, Arizona Specialty Hospital, NEUROSURGICAL ASSOCIATES LTD, St Joseph's Hospital and Medical Center, BHSM REHABILITATION LLC and Arizona General Hospital - Laveen.

Office Locations

Address:

2910 North 3rd Avenue Suite 200
Phoenix, AZ 85013

Address:

1875 W Frye Road Suite 300
Chandler, AZ 85224

Some issues Dr. Steve Won-Tze Chang, MD can help you with:

Robotic Surgery

Robotic surgery is a type of minimally invasive surgery, using a tiny opening to get inside the body instead of making a large cut. It uses small tools attached to a thin robotic arm, which is controlled by the surgeon. Robotic surgery may be referred to by the specific kind of robot that is used. The most advanced robot currently in use is called the da Vinci, and surgery using it is sometimes called da Vinci surgery.

There are many benefits to robotic surgery, both for the patient and the surgeon. Robotic surgery allows for more precise movements and increased control during very delicate surgical procedures. This makes performing surgery accurately much easier for surgeons and reduces fatigue. The smaller 'hand' of the robot can enter the body via a much smaller opening, which reduces the risk of infection and scarring and leads to a faster recovery. The robotic hands also contain tiny moveable cameras among their tools, giving surgeons a much closer view of the procedure than would be possible with traditional surgery.

Spinal Fusion

Spinal fusion is a surgical procedure to permanently join together two or more vertebrae, the bones in the spine. Certain spinal disorders can lead to instability and pain, and the idea behind spinal fusion is that fusing vertebrae together can both make them stronger and reduce motion, which can sometimes reduce pain.

There are several different types of spinal fusion surgery available, mostly depending on where a patient's pain is located and whether his or her surgeon will perform the procedure through the back, front, or side. In general, a fusion is performed by packing the vertebrae to be fused with grafted bone. This bone may be taken from the patient's hip, may be donated from a cadaver, or it may be a manufactured synthetic material. The bone is placed along the vertebrae, and sometimes, the disc that lies in between the vertebrae is removed and replaced with grafted bone. The bone material will grow and cement the two vertebrae together. After the bone graft is placed, the vertebrae are sometimes held in place with rods, screws, plates, or cages, depending on the weakness of the spine and needs of the graft.

Spinal fusion is a significant surgery and can take three to four hours or more. Recovery is typically two to four days in the hospital. After surgery, it is important to remember that the fusion takes time to grow from the bone graft. So, the actual fusion is not complete for several months. Patients will probably feel somewhat better right away, but it may take a while to feel the full effects of the fusion as the bone grows into place. In the meantime, doctors might have patients wear a brace to protect their spine and keep it properly aligned.

Spinal fusion is not used for all kinds of back pain. Changing the way the spine moves can lead to strain on the other joints in the back, and fusion is only performed when the benefits outweigh the risks. Some spine disorders that are treated with fusion include:

Curvature disorders, such as scoliosis and kyphosis
Degenerative disc disease
Spondylolisthesis, a disorder that causes vertebrae to slip over each other
Significant spinal fractures that cause instability
Weakened spine due to infection or tumor
Some cases of spinal stenosis, a narrowing of the spinal column
Chronic lower back pain (although the use of fusion to treat this is controversial)

Regardless of the diagnosis, there is always a possibility of 'failure' with spinal fusion, or of the surgery not fully solving the pain. This is more likely when fusion is used primarily to treat pain instead of structural problems. Patients can improve their chances of a successful outcome by stopping smoking, maintaining a healthy weight, moving their body every day, and following their doctor's instructions for any physical therapy that they are prescribed.

arthrodesis (bone fusion surgery)	58
decompression surgery	58
doctor visit	308
hospital care	98
inpatient care	98
minimally invasive procedures	11
neck surgery	37
nerve procedures	58
spinal procedures	143

**Gender**
Male	161
Female	203

**Ethnicity**
Non-Hispanic White	303
Black	11
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	172
From 75 to 84	105
85 and over	38
Less than 65	49

Hypertension	75
High Cholesterol	65
Stroke	18
Ischemic Heart Disease	42
Depression	28
Chronic Kidney Disease	31
Asthma	14
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	37
Dementia	13
Cancer	9

arthrodesis (bone fusion surgery)	48
decompression surgery	43
doctor visit	267
hospital care	31
inpatient care	31
minimally invasive procedures	13
neck surgery	36
nerve procedures	43
spinal procedures	111

**Gender**
Male	155
Female	160

**Ethnicity**
Non-Hispanic White	257
Black	13
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	146
From 75 to 84	98
85 and over	26
Less than 65	45

Hypertension	75
High Cholesterol	65
Stroke	14
Ischemic Heart Disease	40
Depression	24
Chronic Kidney Disease	24
Asthma	11
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	36
Dementia	9
Cancer	14

arthrodesis (bone fusion surgery)	41
decompression surgery	68
doctor visit	302
hospital care	18
inpatient care	18
minimally invasive procedures	14
neck surgery	28
nerve procedures	68
spinal procedures	119

**Gender**
Male	312
Female	324

**Ethnicity**
Non-Hispanic White	532
Black	26
Hispanic	48
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	382
From 75 to 84	138
85 and over	50
Less than 65	66

Hypertension	75
High Cholesterol	60
Stroke	11
Ischemic Heart Disease	33
Depression	31
Chronic Kidney Disease	27
Asthma	16
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	8
Cancer	13

arthrodesis (bone fusion surgery)	63
decompression surgery	47
doctor visit	369
minimally invasive procedures	10
neck surgery	42
nerve procedures	47
spinal procedures	139

**Gender**
Male	142
Female	179

**Ethnicity**
Non-Hispanic White	258
Black	15
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	174
From 75 to 84	94
85 and over	23
Less than 65	30

Hypertension	74
High Cholesterol	64
Stroke	11
Ischemic Heart Disease	39
Depression	29
Chronic Kidney Disease	33
Asthma	24
Osteoperosis	14
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	19
Diabetes	35
Dementia	8
Cancer	14

arthrodesis (bone fusion surgery)	49
decompression surgery	50
doctor visit	354
minimally invasive procedures	11
neck surgery	39
nerve procedures	50
spinal procedures	126

**Gender**
Male	162
Female	169

**Ethnicity**
Non-Hispanic White	275
Black	0
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	180
From 75 to 84	109
85 and over	11
Less than 65	31

Hypertension	70
High Cholesterol	58
Stroke	8
Ischemic Heart Disease	35
Depression	28
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	7
Cancer	10

arthrodesis (bone fusion surgery)	54
decompression surgery	55
doctor visit	339
minimally invasive procedures	24
neck surgery	31
nerve procedures	55
spinal procedures	121

**Gender**
Male	168
Female	152

**Ethnicity**
Non-Hispanic White	278
Black	0
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	179
From 75 to 84	106
85 and over	12
Less than 65	23

Hypertension	73
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	37
Depression	30
Chronic Kidney Disease	33
Asthma	10
Osteoperosis	15
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	7
Cancer	12

arthrodesis (bone fusion surgery)	39
decompression surgery	49
doctor visit	238
minimally invasive procedures	13
neck surgery	27
nerve procedures	49
spinal procedures	78

**Gender**
Male	136
Female	118

**Ethnicity**
Non-Hispanic White	214
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	148
From 75 to 84	79
85 and over	12
Less than 65	15

Hypertension	75
High Cholesterol	69
Stroke	8
Ischemic Heart Disease	33
Depression	23
Chronic Kidney Disease	33
Asthma	10
Osteoperosis	12
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	10
Cancer	11

arthrodesis (bone fusion surgery)	14
decompression surgery	31
doctor visit	153
neck surgery	16
nerve procedures	31
spinal procedures	47

**Gender**
Male	78
Female	69

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

**Age**
From 65 to 74	78
From 75 to 84	50
85 and over	0
Less than 65	0

Hypertension	71
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	35
Depression	21
Chronic Kidney Disease	38
Asthma	14
Osteoperosis	16
Atrial Fibrilation	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	32
Dementia	12
Cancer	11

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Steve Won-Tze Chang, MD for Medicare patients.

The highest averages for the top procedures that Dr. Steve Won-Tze Chang, MD treated as a spine surgeon in Phoenix, AZ were spinal procedures, nerve procedures, hospital care and decompression surgery.

arthrodesis (bone fusion surgery)	47
decompression surgery	50
doctor visit	297
hospital care	50
inpatient care	50
minimally invasive procedures	15
neck surgery	31
nerve procedures	50
spinal procedures	114

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Steve Won-Tze Chang, MD.

**Gender**
Male	131
Female	137

**Ethnicity**
Black / African American	6
Asian / Pacific Islander	0
Non-Hispanic White	224
Native American / Alaskan Native	0
Hispanic	19
Other	0

**Age**
75 to 84	77
85 and over	17
Less than 65	25
65 to 74	145

Average of Total of Conditions of Medicare patients treated by Dr. Steve Won-Tze Chang, MD From 2013 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. Steve Won-Tze Chang, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	58
High Cholesterol	51
Stroke	7
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	24
Asthma	10
Osteoporosis	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	11
Diabetes	26
Atrial Fibrillation	9
Cancer	9
Dementia	7

Education & Training

Dr. Steve Won-Tze Chang, MD graduated from University of North Carolina School of Medicine in 2002. He completed residency at Banner - University Medical Center Phoenix. He is certified by the American Board of Neurological Surgery and has a state license in Arizona.

Medical School: University of North Carolina School of Medicine (2002)

Residency: Banner - University Medical Center Phoenix (2003)

Board Certification: American Board of Neurological Surgery

Licensed In: Arizona

Affiliations & Hospitals

Dr. Steve Won-Tze Chang, MD is associated with these hospitals and organizations:

Chandler Regional Medical Center

Mercy Gilbert Medical Center

Barrow Neurological Institute

Dignity Health

Arizona Specialty Hospital

NEUROSURGICAL ASSOCIATES LTD

St Joseph's Hospital and Medical Center

BHSM REHABILITATION LLC

Arizona General Hospital - Laveen

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. Steve Won-Tze Chang, MD appears to accept the following insurance providers: Great West, United Healthcare, Aetna, Medicare, Cigna, AARP (Medigap), First Health, Mercy Care, Mercy Maricopa, UMR, Blue Cross Blue Shield of Arizona, Copper Point Mutual Workers Comp, Indian Health Plan, Aetna Medicare, Medicare Part B, MultiPlan, TRICARE, Humana, Blue California, Health Choice Pathway, BCBS AZ Neighborhood Network, BCBS of Arizona, Mercy Care RBHA, Connected Care, Arizona Foundation for Medical Care, Bright Health Medicare, Mercy Care at the Phoenix and Chandler Locations, Mercy Care Advantage, AHCCCS Fee for Service, Mercy Care Plan, Devoted Health, Bright Health and Health Choice AZ.

Insurance Accepted by Provider includes:

According to our sources, Dr. Steve Won-Tze Chang, MD accepts the following insurance providers:

Great West

United Healthcare

Aetna

Medicare

Cigna

AARP (Medigap)

First Health

Mercy Care

Mercy Maricopa

UMR

Blue Cross Blue Shield of Arizona

Copper Point Mutual Workers Comp

Indian Health Plan

Aetna Medicare

Medicare Part B

MultiPlan

TRICARE

Humana

Blue California

Health Choice Pathway

BCBS AZ Neighborhood Network

BCBS of Arizona

Mercy Care RBHA

Connected Care

Arizona Foundation for Medical Care

Bright Health Medicare

Mercy Care at the Phoenix and Chandler Locations

Mercy Care Advantage

AHCCCS Fee for Service

Mercy Care Plan

Devoted Health

Bright Health

Health Choice AZ

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Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Steve Won-Tze Chang, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Globus Medical, Inc.	$583,249 Altera $322,211	Excelsius GPS Interbody $74,068	Excelsius GPS $47,047	Spine $45,563	Excelsius3D Imaging System $39,983	Other $54,377
Medtronic USA, Inc.	$426,087 MazorX - Renaissance $194	ATLANTIS $164	Spinal Cord Neurostimulation - Neuro $128	Pain Therapies $114	MazorX Renaissance $96	Other $425,390
Zimmer Biomet Holdings, Inc.	$74,417 Alpine XC $45,017	Spine $19,931	Vitality $8,861	EBI Bone Healing System $228	Mobi C $160	Other $220
LDR SPINE USA, INC	$28,025 Spinal Implant $28,025
BIOMET SPINE, LLC	$27,821 Spine $27,821
Other	$18,996 Senza Spinal Cord Stimulation System $4,950	Spinal Fusion Device $1,871	Thoracolumbar $1,511	Thoracolumbar - TL Therapies $1,264	Lateral $895	Other $8,504

**Types of Payments**
Royalty or License	$1,030,693
Consulting Fee	$83,890
Travel and Lodging	$32,357
Food and Beverage	$11,592
Education	$39
Other	$23

Research Payments

Dr. Steve Won-Tze Chang, MD has received 8 research payments totaling $4,133.

Ownership and Interest Payments

This table describes ownership payments received by Dr. Steve Won-Tze Chang, MD.

Ortho Kinematics Inc.	2017	$1,056,820.00	Physician Covered Recipient	stock
Titan Spine, LLC	2017	$408,720.00	Physician Covered Recipient	vested LLC units
Titan Spine, LLC	2018	$408,720.00	Physician Covered Recipient	vested LLC units
Titan Spine, LLC	2019	$302,250.00	Physician Covered Recipient	vested LLC units
Statera Spine, Inc.	2018	$22,241.00	Physician Covered Recipient	stock

Biography

Dr. Steve Chang, who practices in Phoenix, AZ and Chandler, AZ, is a medical specialist in spine surgery and neurosurgery. Areas of expertise for Dr. Chang include spinal cord tumor, lumbar spine surgery, and herniated disc. Dr. Chang's hospital/clinic affiliations include Chandler Regional Medical Center, Mercy Gilbert Medical Center, and Arizona Specialty Hospital. He most likely takes Aetna Medicare, Coventry, and First Health, as well as other insurance carriers. His practice in Phoenix, AZ is open to new patients as reported by Dignity Health. After completing medical school at the University of North Carolina at Chapel Hill School of Medicine, he performed his residency at Banner - University Medical Center Phoenix and Barrow Neurological Institute. Dr. Chang has received the following distinctions: Duke University Undergraduate Research Support Grant; AOA Medical Honor Society; and UNC Student Merit Award. He speaks Mandarin.

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Dr. Steve Won-Tze Chang, MD

Office Locations

Some issues Dr. Steve Won-Tze Chang, MD can help you with:

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steve Won-Tze Chang, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steve Won-Tze Chang, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steve Won-Tze Chang, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steve Won-Tze Chang, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steve Won-Tze Chang, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steve Won-Tze Chang, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steve Won-Tze Chang, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Steve Won-Tze Chang, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Average Medicare Procedure Volume From 2013 - 2021

Average Medicare Patient Data From 2013 - 2021

Average of Total of Conditions of Medicare patients treated by Dr. Steve Won-Tze Chang, MD From 2013 - 2021

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Research Payments

Ownership and Interest Payments

Biography

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