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Dr. Clifford Carl Douglas, MD, PHD

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Specializes in: Spine Surgery and Neurosurgery
Loma Linda University School of Medicine (1989)
Professional interests include: injuries, spinal cord injury, sacroiliac (SI) joint injection, and more.
4510 Brockton Avenue Suite 175
Riverside, CA 92501

Dr. Clifford Carl Douglas, MD, PHD is a spine surgeon in Riverside, CA specializing in spine surgery and neurosurgery. He graduated from Loma Linda University School of Medicine in 1989 and has 37 years of experience. Dr. Clifford Carl Douglas, MD, PHD is affiliated with Riverside Community Hospital.

View Doctor's Full Profile (951) 786-5550

Office Locations

4510 Brockton Avenue Suite 175
Riverside, CA 92501
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Some issues Dr. Clifford Carl Douglas, MD, PHD 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.

In The News 

“I was induced into a coma and taken into surgery by neurosurgeon Clifford Douglas," said Reynolds, 36.”—"She had a 20 percent chance to live; a year later, Perris woman is thriving", The Press-Enterprise, June 2017

Noteworthy Medicare Patient Procedures Performed by Dr. Clifford Carl Douglas, MD, PHD in 2023

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

Top 10%

By Affordability:

hospital care
inpatient care
inpatient hospital care

In 2023, Dr. Clifford Carl Douglas, MD, PHD had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Clifford Carl Douglas, MD, PHD treated as a spine surgeon in Riverside, CA during 2012 were hospital care, inpatient care, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

decompression surgery 15
doctor visit 167
hospital care 57
inpatient care 57
nerve procedures 15
spinal procedures 15

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Clifford Carl Douglas, MD, PHD treated as a spine surgeon in Riverside, CA during 2013 were hospital care, inpatient care, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

decompression surgery 13
doctor visit 151
hospital care 75
inpatient care 75
nerve procedures 13
spinal procedures 13

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 80
Female 82
Ethnicity
Non-Hispanic White 93
Black 15
Hispanic 39
Asian 0
Other 0
Native American 0
Age
From 65 to 74 67
From 75 to 84 50
85 and over 19
Less than 65 26

Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD in 2013

Hypertension 75
High Cholesterol 60
Stroke 24
Ischemic Heart Disease 44
Depression 26
Chronic Kidney Disease 35
Asthma 9
Osteoperosis 15
Atrial Fibrilation 9
Heart Failure 25
Chronic Obstructive Pulmonary Disease 25
Diabetes 44
Dementia 21
Cancer 14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Clifford Carl Douglas, MD, PHD treated as a spine surgeon in Riverside, CA during 2014 were hospital care, inpatient care, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

decompression surgery 18
doctor visit 163
hospital care 48
inpatient care 48
nerve procedures 18
spinal procedures 18

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 94
Female 87
Ethnicity
Non-Hispanic White 112
Black 16
Hispanic 36
Asian 0
Other 0
Native American 0
Age
From 65 to 74 75
From 75 to 84 53
85 and over 26
Less than 65 27

Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD in 2014

Hypertension 75
High Cholesterol 63
Stroke 18
Ischemic Heart Disease 40
Depression 28
Chronic Kidney Disease 35
Asthma 8
Osteoperosis 17
Atrial Fibrilation 10
Heart Failure 31
Chronic Obstructive Pulmonary Disease 28
Diabetes 50
Dementia 24
Cancer 13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Clifford Carl Douglas, MD, PHD treated as a spine surgeon in Riverside, CA during 2015 were hospital care, inpatient care, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

decompression surgery 16
doctor visit 137
hospital care 51
inpatient care 51
nerve procedures 16
spinal procedures 16

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 134
Female 128
Ethnicity
Non-Hispanic White 172
Black 0
Hispanic 52
Asian 0
Other 0
Native American 0
Age
From 65 to 74 92
From 75 to 84 98
85 and over 38
Less than 65 34

Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD in 2015

Hypertension 74
High Cholesterol 63
Stroke 19
Ischemic Heart Disease 44
Depression 27
Chronic Kidney Disease 40
Asthma 17
Osteoperosis 15
Atrial Fibrilation 10
Heart Failure 28
Chronic Obstructive Pulmonary Disease 24
Diabetes 44
Dementia 21
Cancer 12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Clifford Carl Douglas, MD, PHD treated as a spine surgeon in Riverside, CA during 2016 were hospital care, inpatient care, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

decompression surgery 17
doctor visit 109
emergency care 15
hospital care 29
inpatient care 29
nerve procedures 17
spinal procedures 17

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 59
Female 75
Ethnicity
Non-Hispanic White 91
Black 0
Hispanic 29
Asian 0
Other 0
Native American 0
Age
From 65 to 74 54
From 75 to 84 42
85 and over 15
Less than 65 23

Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD in 2016

Hypertension 75
High Cholesterol 51
Stroke 18
Ischemic Heart Disease 34
Depression 27
Chronic Kidney Disease 46
Asthma 28
Osteoperosis 12
Atrial Fibrilation 0
Heart Failure 27
Chronic Obstructive Pulmonary Disease 24
Diabetes 39
Dementia 22
Cancer 10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Clifford Carl Douglas, MD, PHD treated as a spine surgeon in Riverside, CA during 2017 were emergency care.

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

doctor visit 148
emergency care 14

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 84
Female 76
Ethnicity
Non-Hispanic White 101
Black 18
Hispanic 30
Asian 0
Other 0
Native American 0
Age
From 65 to 74 56
From 75 to 84 51
85 and over 25
Less than 65 28

Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD in 2017

Hypertension 75
High Cholesterol 61
Stroke 24
Ischemic Heart Disease 40
Depression 28
Chronic Kidney Disease 47
Asthma 10
Osteoperosis 13
Atrial Fibrilation 13
Heart Failure 19
Chronic Obstructive Pulmonary Disease 18
Diabetes 48
Dementia 20
Cancer 13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Clifford Carl Douglas, MD, PHD treated as a spine surgeon in Riverside, CA during 2018 were spinal procedures, minimally invasive procedures, joint surgery and arthrodesis (bone fusion surgery).

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

arthrodesis (bone fusion surgery) 20
decompression surgery 11
doctor visit 126
joint surgery 20
minimally invasive procedures 20
nerve procedures 11
pelvic surgery 20
spinal procedures 31

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 56
Female 56
Ethnicity
Non-Hispanic White 79
Black 0
Hispanic 16
Asian 0
Other 0
Native American 0
Age
From 65 to 74 41
From 75 to 84 36
85 and over 11
Less than 65 24

Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD in 2018

Hypertension 71
High Cholesterol 58
Stroke 0
Ischemic Heart Disease 41
Depression 31
Chronic Kidney Disease 43
Asthma 12
Osteoperosis 0
Atrial Fibrilation 13
Heart Failure 24
Chronic Obstructive Pulmonary Disease 17
Diabetes 38
Dementia 18
Cancer 12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Clifford Carl Douglas, MD, PHD treated as a spine surgeon in Riverside, CA during 2019 were spinal procedures, nerve procedures, decompression surgery and hospital care.

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

arthrodesis (bone fusion surgery) 13
decompression surgery 31
doctor visit 183
hospital care 16
inpatient care 16
joint surgery 13
minimally invasive procedures 13
nerve procedures 31
pelvic surgery 13
spinal procedures 44

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 88
Female 83
Ethnicity
Non-Hispanic White 127
Black 0
Hispanic 29
Asian 0
Other 0
Native American 0
Age
From 65 to 74 71
From 75 to 84 55
85 and over 16
Less than 65 29

Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD in 2019

Hypertension 71
High Cholesterol 62
Stroke 10
Ischemic Heart Disease 39
Depression 37
Chronic Kidney Disease 49
Asthma 13
Osteoperosis 9
Atrial Fibrilation 12
Heart Failure 29
Chronic Obstructive Pulmonary Disease 19
Diabetes 44
Dementia 18
Cancer 8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

doctor visit 73

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 58
Female 67
Ethnicity
Non-Hispanic White 96
Black 0
Hispanic 15
Asian 0
Other 0
Native American 0
Age
From 65 to 74 47
From 75 to 84 41
85 and over 17
Less than 65 20

Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD in 2020

Hypertension 70
High Cholesterol 61
Stroke 9
Ischemic Heart Disease 29
Depression 37
Chronic Kidney Disease 40
Asthma 13
Osteoperosis 11
Atrial Fibrilation 11
Heart Failure 22
Chronic Obstructive Pulmonary Disease 14
Diabetes 41
Dementia 17
Cancer 11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Clifford Carl Douglas, MD, PHD treated as a spine surgeon in Riverside, CA during 2021 were spinal procedures, arthrodesis (bone fusion surgery), nerve procedures and decompression surgery.

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

arthrodesis (bone fusion surgery) 12
decompression surgery 11
doctor visit 97
nerve procedures 11
spinal procedures 23

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 51
Female 53
Ethnicity
Non-Hispanic White 87
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 47
From 75 to 84 29
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD in 2021

Hypertension 75
High Cholesterol 72
Stroke 12
Ischemic Heart Disease 38
Depression 30
Chronic Kidney Disease 41
Asthma 13
Osteoperosis 17
Atrial Fibrilation 0
Heart Failure 11
Chronic Obstructive Pulmonary Disease 17
Diabetes 38
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

doctor visit 140

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 74
Female 72
Ethnicity
Non-Hispanic White 106
Black 0
Hispanic 17
Asian 0
Other 0
Native American 0
Age
From 65 to 74 70
From 75 to 84 37
85 and over 13
Less than 65 26

Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD in 2022

Hypertension 75
High Cholesterol 69
Stroke 10
Ischemic Heart Disease 21
Depression 27
Chronic Kidney Disease 23
Asthma 16
Osteoperosis 21
Atrial Fibrilation 13
Heart Failure 16
Chronic Obstructive Pulmonary Disease 17
Diabetes 37
Dementia 0
Cancer 13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Clifford Carl Douglas, MD, PHD for Medicare patients.

The highest averages for the top procedures that Dr. Clifford Carl Douglas, MD, PHD treated as a spine surgeon in Riverside, CA were hospital care, inpatient care, spinal procedures and nerve procedures.

arthrodesis (bone fusion surgery) 15
decompression surgery 16
doctor visit 135
emergency care 14
hospital care 46
inpatient care 46
joint surgery 16
minimally invasive procedures 16
nerve procedures 16
pelvic surgery 16
spinal procedures 22

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD.

Gender
Male 70
Female 70
Ethnicity
Black / African American 4
Asian / Pacific Islander 0
Non-Hispanic White 96
Native American / Alaskan Native 0
Hispanic 23
Other 0
Age
75 to 84 44
85 and over 16
Less than 65 21
65 to 74 56

Average of Total of Conditions of Medicare patients treated by Dr. Clifford Carl Douglas, MD, PHD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Clifford Carl Douglas, MD, PHD treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension 66
High Cholesterol 56
Stroke 13
Ischemic Heart Disease 33
Depression 27
Chronic Kidney Disease 36
Asthma 12
Osteoporosis 11
Heart Failure 21
Chronic Obstructive Pulmonary Disease 18
Diabetes 38
Atrial Fibrillation 8
Cancer 9
Dementia 14

Education & Training

Dr. Clifford Carl Douglas, MD, PHD graduated from Loma Linda University School of Medicine in 1989. He completed residency at Loma Linda University Medical Center. He has a state license in California.

Medical School: Loma Linda University School of Medicine (1989)

Residency: Loma Linda University Medical Center (1995)

Licensed In: California

Affiliations & Hospitals

Dr. Clifford Carl Douglas, MD, PHD is associated with these hospitals and organizations:

Riverside Community Hospital

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Clifford Carl Douglas, MD, PHD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
SI-Bone, Inc. $7,115 iFuse Implant
$6,477
$638
K2M, Inc. $4,493 General K2M Product Discussion
$3,876 		EVEREST Spinal System
$329 		CASCADIA Interbody System
$150 		RAVINE,CAYMAN
$61 		RAVINE Lateral Access System
$57 		Other
$20
Medtronic USA, Inc. $4,411 ACTIVA
$2,723 		Deep Brain Neurostimulation
$800 		MazorX Renaissance
$558 		O-ARM-ST
$246 		OSTEOCOOL RF ABLATION
$85
Stryker Corporation $2,411 EVEREST Spinal System
$1,496 		SPINEJACK
$230 		SPINEMAP
$167 		MESA Spinal System
$131 		EVEREST
$127 		Other
$260
Medtronic, Inc. $1,418 PERCEPT PC BRAINSENSE
$1,067 		ACTIVA PC
$164 		O-ARM
$126 		MAZOR X SYSTEM
$41 		PIVOX Oblique Lateral Spinal System
$21
Other $2,529 Image Guided Surgery Products
$400 		HA MINUTEMAN G3-R
$336 		Senza Spinal Cord Stimulation System
$247 		Spine
$159 		CODMAN HAKIM Precision Valve
$140 		Other
$1,248
Types of Payments
Food and Beverage $10,434
Travel and Lodging $9,444
Consulting Fee $2,500

Biography

Dr. Clifford Douglas practices spine surgery and neurosurgery in Riverside, CA. He attended Loma Linda University School of Medicine and then went on to complete his residency at Loma Linda University Medical Center. Dr. Douglas's areas of clinical interest consist of spinal cord injury, spine tumor, and neurosurgery. He is affiliated with Riverside Community Hospital.

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