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Home > CA Providers > Neurosurgeons

Dr. John Kevin Ratliff, FACS, MD

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Specializes in: Neurosurgery

Tulane University School of Medicine (1995)

Professional interests include: peripheral neuropathy, head injury, spinal cord injury, and more.

300 Pasteur Drive 3rd Floor
Palo Alto, CA 94305

1-866-742-4811

Dr. John Kevin Ratliff, FACS, MD is a neurosurgeon in Palo Alto, CA specializing in neurosurgery. He graduated from Tulane University School of Medicine in 1995 and has 31 years of experience. Dr. John Kevin Ratliff, FACS, MD is affiliated with Stanford Medicine Children's Health and Stanford Health Care.

Office Locations

Stanford Medicine Children's Health

213 Quarry Road 4th Floor Mc 5958
Palo Alto, CA 94304

(650) 723-6469

(650) 725-0390

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Stanford Health Care

300 Pasteur Drive 3rd Floor
Palo Alto, CA 94305

1-866-742-4811

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Some issues Dr. John Kevin Ratliff, FACS, MD can help you with:

Spinal Cord Injury

Spinal cord injury medicine is a branch of medicine that treats damage to the spinal cord from an injury or a nontraumatic myelopathy, which is any disorder that affects the spinal area. The spinal cord is a section of nerve tissue protected by the vertebrae (spinal bones). Trauma to the spinal cord, typically caused by compression or bent vertebrae, prevents the body and brain from communicating. This can result in pain, loss of sensation, and impaired physical function and movement. Acute spinal cord injuries (SCIs) are a leading cause of permanent disability. Spinal cord injuries may develop from accidents or myelopathies, disorders that provoke spinal compression. Traumatic incidents such as falls, sports injuries, vehicle accidents, and bullet or stab wounds can cause an acute spinal cord injury.

Spinal cord injury medicine seeks to stabilize the spine and to alleviate the symptoms of spine damage. Practitioners of spinal cord injury medicine are called spinal cord injury specialists. Spinal cord injury medicine is an interdisciplinary field, meaning physicians of various specialties may be trained to treat spinal cord injuries.

Damage to the spinal cord may initially be diagnosed through X-ray, MRI, or CT scans. Patients can also undergo spinal exams to evaluate their sensory ability and strength. Injuries to the spinal cord can be complete (no feeling or sensation) or incomplete (some feeling or sensation remains). Conditions spinal cord injury medicine specialists may treat include:

Paralysis, such as paraplegia (loss of function in the legs), or quadriplegia (loss of function from the neck down)
Spine fracture or trauma, which can lead to impairment and/or significant pain
Spinal infections
Myelopathies, such as herniated disks, spinal tumors, and rheumatoid arthritis
Inflammatory diseases such as ankylosing spondylosis, and degenerative conditions like Lou Gehrig's disease (ALS)

Treatment for spinal cord injuries often involves surgery, either directly after an injury occurs or at a later date. Surgery for spine injuries is intended to ease spinal compression and stabilize the spine. Surgical procedures can involve shifting vertebrae, removing bone, or altering spinal placement with implantable devices. Patients with significant spinal trauma may require urgent surgical intervention.

Surgical treatments can be complemented by rehabilitative physical therapy to improve mobility. Spinal cord injury specialists also treat complications arising from a spinal injury, such as respiratory or bladder conditions. Some patients with spinal cord injuries may require lifelong treatment. Spinal cord injury specialists aim to help these patients successfully adjust and lead an improved quality of life. An emerging treatment for spinal cord injuries is neural prosthetics, which replicate patients' lost nerve function. Neural prostheses may be used as artificial body parts or assistive devices that patients may cognitively control. Other assistive devices include wheelchairs and scooters.

Spinal cord injury specialists may collaborate with physical therapists, radiologists, neurologists, urologists, and orthopedists.

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.

In The News

“"It really appears that the number of cases where we have to do a prior auth and the kind of delayed tactics that are being applied through the prior auth system really appear to have gotten worse...”—"Frustrated with delays, doctors take aim at prior authorization", Salon, May 2022

Noteworthy Medicare Patient Procedures Performed by Dr. John Kevin Ratliff, FACS, MD in 2023

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

Top 5%

By Volume:

360-degree lumbar fusion

In 2023, Dr. John Kevin Ratliff, FACS, MD performed more 360-degree lumbar fusion procedures for Medicare patients than 95% of providers in related specialties within California.

Top 10%

By Volume:

spine surgery procedures

In 2023, Dr. John Kevin Ratliff, FACS, MD performed more spine surgery procedures procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

decompressive lumbar laminectomy

laminectomy

laminectomy with foraminotomy and facetectomy

posterior spinal fusion

In 2012, Dr. John Kevin Ratliff, FACS, MD performed more decompressive lumbar laminectomy, laminectomy, laminectomy with foraminotomy and facetectomy, and posterior spinal fusion procedures for Medicare patients than 75% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2012 were spinal procedures, nerve procedures, decompression surgery and neck surgery.

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	17
decompression surgery	20
doctor visit	262
hospital care	14
inpatient care	14
neck surgery	17
nerve procedures	20
spinal procedures	62

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2013 were spinal procedures, arthrodesis (bone fusion surgery), neck surgery and nerve procedures.

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	51
decompression surgery	25
doctor visit	393
neck surgery	34
nerve procedures	25
spinal procedures	130

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	166
Female	144

**Ethnicity**
Non-Hispanic White	223
Black	14
Hispanic	28
Asian	31
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	79
85 and over	19
Less than 65	58

Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD in 2013

Hypertension	66
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	32
Depression	31
Chronic Kidney Disease	20
Asthma	12
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	11
Diabetes	31
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2014 were spinal procedures, arthrodesis (bone fusion surgery), nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	60
bone surgery	11
decompression surgery	38
doctor visit	415
hospital care	14
inpatient care	14
neck surgery	35
nerve procedures	38
spinal procedures	164

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	158
Female	185

**Ethnicity**
Non-Hispanic White	238
Black	0
Hispanic	36
Asian	46
Other	0
Native American	0

**Age**
From 65 to 74	167
From 75 to 84	90
85 and over	20
Less than 65	66

Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD in 2014

Hypertension	66
High Cholesterol	59
Stroke	6
Ischemic Heart Disease	33
Depression	31
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	19
Chronic Obstructive Pulmonary Disease	11
Diabetes	30
Dementia	6
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2015 were spinal procedures, arthrodesis (bone fusion surgery), nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	45
decompression surgery	36
doctor visit	381
hospital care	13
inpatient care	13
neck surgery	31
nerve procedures	36
spinal procedures	103

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	326
Female	318

**Ethnicity**
Non-Hispanic White	454
Black	0
Hispanic	74
Asian	70
Other	0
Native American	0

**Age**
From 65 to 74	306
From 75 to 84	184
85 and over	36
Less than 65	118

Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD in 2015

Hypertension	63
High Cholesterol	57
Stroke	6
Ischemic Heart Disease	33
Depression	29
Chronic Kidney Disease	25
Asthma	12
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	33
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2016 were spinal procedures, arthrodesis (bone fusion surgery), nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	56
decompression surgery	35
doctor visit	379
hospital care	12
inpatient care	12
minimally invasive procedures	11
neck surgery	30
nerve procedures	35
spinal procedures	128

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	158
Female	174

**Ethnicity**
Non-Hispanic White	238
Black	0
Hispanic	31
Asian	36
Other	16
Native American	0

**Age**
From 65 to 74	150
From 75 to 84	101
85 and over	16
Less than 65	65

Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD in 2016

Hypertension	65
High Cholesterol	59
Stroke	5
Ischemic Heart Disease	35
Depression	30
Chronic Kidney Disease	30
Asthma	19
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2017 were spinal procedures, arthrodesis (bone fusion surgery), nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	48
decompression surgery	41
doctor visit	481
hospital care	15
inpatient care	15
neck surgery	32
nerve procedures	41
spinal procedures	110

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	176
Female	193

**Ethnicity**
Non-Hispanic White	268
Black	0
Hispanic	25
Asian	46
Other	14
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	106
85 and over	18
Less than 65	60

Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD in 2017

Hypertension	73
High Cholesterol	54
Stroke	6
Ischemic Heart Disease	32
Depression	25
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	14
Atrial Fibrilation	8
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	28
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2018 were spinal procedures, nerve procedures, decompression surgery and arthrodesis (bone fusion surgery).

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	25
decompression surgery	37
doctor visit	474
hospital care	15
inpatient care	15
neck surgery	11
nerve procedures	37
spinal procedures	109

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	176
Female	179

**Ethnicity**
Non-Hispanic White	258
Black	0
Hispanic	24
Asian	41
Other	20
Native American	0

**Age**
From 65 to 74	175
From 75 to 84	108
85 and over	21
Less than 65	51

Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD in 2018

Hypertension	67
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	31
Depression	22
Chronic Kidney Disease	32
Asthma	13
Osteoperosis	15
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	9
Diabetes	28
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2019 were spinal procedures, nerve procedures, decompression surgery and arthrodesis (bone fusion surgery).

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	26
bone surgery	12
decompression surgery	26
doctor visit	547
hospital care	12
inpatient care	12
neck surgery	11
nerve procedures	26
spinal procedures	105

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	194
Female	202

**Ethnicity**
Non-Hispanic White	304
Black	0
Hispanic	24
Asian	40
Other	0
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	134
85 and over	32
Less than 65	41

Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD in 2019

Hypertension	65
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	35
Depression	23
Chronic Kidney Disease	34
Asthma	13
Osteoperosis	18
Atrial Fibrilation	0
Heart Failure	18
Chronic Obstructive Pulmonary Disease	9
Diabetes	27
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2020 were spinal procedures, nerve procedures, decompression surgery and arthrodesis (bone fusion surgery).

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	42
decompression surgery	44
doctor visit	464
hospital care	18
inpatient care	18
neck surgery	35
nerve procedures	44
spinal procedures	105

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	162
Female	150

**Ethnicity**
Non-Hispanic White	232
Black	0
Hispanic	30
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	144
From 75 to 84	116
85 and over	18
Less than 65	34

Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD in 2020

Hypertension	67
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	37
Depression	26
Chronic Kidney Disease	32
Asthma	11
Osteoperosis	14
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	9
Diabetes	28
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2021 were spinal procedures, nerve procedures, decompression surgery and arthrodesis (bone fusion surgery).

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	40
decompression surgery	40
doctor visit	532
hospital care	13
inpatient care	13
minimally invasive procedures	12
neck surgery	12
nerve procedures	40
spinal procedures	108

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	155
Female	200

**Ethnicity**
Non-Hispanic White	264
Black	0
Hispanic	27
Asian	32
Other	0
Native American	0

**Age**
From 65 to 74	166
From 75 to 84	138
85 and over	16
Less than 65	35

Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD in 2021

Hypertension	68
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	34
Depression	24
Chronic Kidney Disease	33
Asthma	14
Osteoperosis	23
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	8
Diabetes	25
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA during 2022 were spinal procedures, arthrodesis (bone fusion surgery), nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

arthrodesis (bone fusion surgery)	36
decompression surgery	27
doctor visit	556
neck surgery	11
nerve procedures	27
spinal procedures	101

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	179
Female	218

**Ethnicity**
Non-Hispanic White	301
Black	0
Hispanic	31
Asian	40
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	159
85 and over	26
Less than 65	29

Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	24
Depression	27
Chronic Kidney Disease	23
Asthma	16
Osteoperosis	23
Atrial Fibrilation	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	7
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John Kevin Ratliff, FACS, MD for Medicare patients.

The highest averages for the top procedures that Dr. John Kevin Ratliff, FACS, MD treated as a neurosurgeon in Palo Alto, CA were spinal procedures, arthrodesis (bone fusion surgery), nerve procedures and decompression surgery.

arthrodesis (bone fusion surgery)	40
bone surgery	11
decompression surgery	33
doctor visit	444
hospital care	14
inpatient care	14
minimally invasive procedures	11
neck surgery	23
nerve procedures	33
spinal procedures	111

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD.

**Gender**
Male	168
Female	178

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	37
Non-Hispanic White	252
Hispanic	30
Native American / Alaskan Native	0
Other	4

**Age**
75 to 84	110
85 and over	20
Less than 65	50
65 to 74	165

Average of Total of Conditions of Medicare patients treated by Dr. John Kevin Ratliff, FACS, MD From 2012 - 2022

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

Hypertension	61
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	29
Depression	24
Chronic Kidney Disease	25
Asthma	11
Osteoporosis	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	9
Diabetes	26
Atrial Fibrillation	8
Cancer	11
Dementia	7

Education & Training

Dr. John Kevin Ratliff, FACS, MD graduated from Tulane University School of Medicine in 1995. He completed residency at Louisiana State University Health Sciences Center - New Orleans. He is certified by the Neurological Surgery, American Board of Neurological Surgery and has a state license in Illinois.

Medical School: Tulane University School of Medicine (1995)

Residency: Louisiana State University Health Sciences Center - New Orleans (2001)

Board Certification: Neurological Surgery, American Board of Neurological Surgery (2005)

Licensed In: Illinois

Affiliations & Hospitals

Dr. John Kevin Ratliff, FACS, MD is associated with these hospitals and organizations:

Stanford Medicine Children's Health

Stanford Health Care

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General Payments

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

**Payments by Company**
Stryker Corporation	$260,429 THORACO-LUMBAR $43,639	NEURO/SPINE/ENT $30,763	Tritanium $22,455	SERRATO $22,437	OASYS $22,161	Other $118,973
Alphatec Spine, Inc	$55,309 Other - Miscellaneous $53,973	MULTIPLE PRODUCTS $272	INVICTUS OPEN $72	LIF $52	AMP $37	Other $903
NUVASIVE, INC.	$32,885 Pulse $16,693	COHERE $7,775	XLIF $4,478	PEEK Corpectomy $1,000	ALIF $516	Other $2,422
Medtronic USA, Inc.	$22,617 MazorX - Renaissance $18,201	O-ARM-ST $474	Deep Brain Neurostimulation $98	DIVERGENCE-L $75	nanoLOCK-L $22	Other $3,749
Medtronic, Inc.	$7,000 StealthStation $2,800	Mazor X Stealth Edition $350	$3,850
Other	$9,604 IO Expandable Lumbar Interbody $2,724	BSBHT - SPINE $1,024	AUSTEDO $694	General K2M Product Discussion $338	EXPEDIUM $235	Other $4,589

**Types of Payments**
Consulting Fee	$299,978
Travel and Lodging	$51,230
Royalty or License	$22,142
Food and Beverage	$12,494
Compensation for serving as faculty or as a speaker for an accredited or certified continuing education program	$2,000

Research Payments

Dr. John Kevin Ratliff, FACS, MD has received 13 research payments totaling $28,716.

Biography

Dr. John Ratliff is a Palo Alto, CA physician who specializes in neurosurgery. These areas are among Dr. Ratliff's clinical interests: scoliosis, spinal cord injury, and herniated disc. His professional affiliations include Stanford Medicine Children's Health and Stanford Health Care. He attended Tulane University School of Medicine and subsequently trained at Louisiana State University Health Sciences Center - New Orleans for residency. Dr. Ratliff's distinctions include: Brandeis University Health Policy Leaders Program Scholarship, American College of Surgeons; Charlie Kuntz Scholar Award, AANS/CNS Disorders of Spine and Peripheral Nerves Joint Section; and Robert Florin, MD Award for Excellence in Research, American Association of Neurological Surgeons.