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Dr. Xavier Joseph Caro, MD

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Specializes in: Adult Rheumatology

University of California, San Francisco (UCSF), School of Medicine (1973)

18350 Roscoe Boulevard Suite 418
Northridge, CA 91325

(818) 993-0125

Dr. Xavier Joseph Caro, MD is a rheumatologist in Northridge, CA specializing in adult rheumatology. He graduated from University of California, San Francisco (UCSF), School of Medicine in 1973 and has 52 years of experience. Dr. Xavier Joseph Caro, MD is affiliated with Dignity Health and Northridge Hospital Medical Center.

Office Locations

Northridge Hospital Medical Center

18350 Roscoe Boulevard Suite 418
Northridge, CA 91325

(818) 993-0125

(818) 993-4319

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In The News (see more mentions in the news)

“At the time of the 1999 killings, Socorro, known as Cora to her friends, was having marital difficulties with her husband, Dr. Xavier Caro, a specialist in rheumatology.”—"Death sentence upheld for Camarillo woman who killed 3 of her 4 children", Los Angeles Times, June 2019

“When he married at age 39, Xavier Caro already had an established medical practice, which complicates the divorce proceedings because the lawyers must determine what assets are his alone and what...”—"Caro Denied Access to Family Estate to Pay Criminal Defense", Los Angeles Times, January 2000

“Moments before Dr. Xavier Caro found three of his children shot dead last month, he found his wife lying in a master bedroom with a small steel revolver in her hand and four spent shell casings at...”—"Search of Caro Home Detailed in Affidavits", Los Angeles Times, December 1999

Noteworthy Medicare Patient Procedures Performed by Dr. Xavier Joseph Caro, MD in 2023

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

Top 10%

By Volume:

intravenous infusion

By Affordability:

intravenous infusion therapy

In 2023, among providers in related specialties within California, Dr. Xavier Joseph Caro, MD performed more intravenous (IV) infusion procedures for Medicare patients than 90% of them and he also had a list price for intravenous infusion therapy 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 Affordability:

intravenous infusion

lab tests

urine tests

In 2013, Dr. Xavier Joseph Caro, MD had a list price for intravenous (IV) infusion, lab tests, and urine tests that was lower than the list prices billed to Medicare by 75% 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

2013 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2013 were lab tests, minimally invasive procedures, blood draw and chemotherapy.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	381
blood draw	867
chemotherapy	381
diagnostic procedures	38
doctor visit	891
lab tests	2391
minimally invasive procedures	957
musculoskeletal imaging	58
pelvic imaging	23
preventive care	29
skin testing	11
spinal procedures	49
thoracic (chest) imaging	31
tuberculosis (TB) testing	11
vaccines	29
X-rays	161

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	29
Female	74

**Ethnicity**
Non-Hispanic White	66
Black	0
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	33
From 75 to 84	31
85 and over	14
Less than 65	25

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2013

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2013 were diabetes, high cholesterol, hypertension and ischemic heart disease.

Hypertension	60
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	39
Depression	30
Chronic Kidney Disease	17
Asthma	0
Osteoperosis	21
Atrial Fibrilation	0
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	75
Dementia	23
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2014 were lab tests, minimally invasive procedures, blood draw and chemotherapy.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	154
blood draw	629
chemotherapy	154
diagnostic procedures	42
doctor visit	742
lab tests	1834
minimally invasive procedures	959
musculoskeletal imaging	26
spinal procedures	28
thoracic (chest) imaging	14
X-rays	68

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	26
Female	65

**Ethnicity**
Non-Hispanic White	62
Black	0
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	32
From 75 to 84	25
85 and over	13
Less than 65	21

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2014

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2014 were diabetes, high cholesterol, hypertension and ischemic heart disease.

Hypertension	64
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	35
Depression	31
Chronic Kidney Disease	19
Asthma	0
Osteoperosis	26
Atrial Fibrilation	0
Heart Failure	22
Chronic Obstructive Pulmonary Disease	0
Diabetes	75
Dementia	23
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2015 were lab tests, minimally invasive procedures, blood draw and chemotherapy.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	70
blood draw	347
chemotherapy	70
diagnostic procedures	46
doctor visit	704
hydrogen breath test	30
lab tests	1237
methane breath test	30
minimally invasive procedures	1144

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	54
Female	144

**Ethnicity**
Non-Hispanic White	130
Black	0
Hispanic	38
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	72
From 75 to 84	48
85 and over	30
Less than 65	48

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2015

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2015 were diabetes, high cholesterol, hypertension and ischemic heart disease.

Hypertension	65
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	41
Depression	38
Chronic Kidney Disease	29
Asthma	0
Osteoperosis	17
Atrial Fibrilation	0
Heart Failure	23
Chronic Obstructive Pulmonary Disease	13
Diabetes	75
Dementia	27
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2016 were minimally invasive procedures, lab tests, blood draw and methane breath test.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	56
blood draw	317
chemotherapy	56
diagnostic procedures	29
doctor visit	753
hydrogen breath test	200
lab tests	1090
methane breath test	200
minimally invasive procedures	1135
musculoskeletal imaging	26
pelvic imaging	12
spinal procedures	32
X-rays	70

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	24
Female	64

**Ethnicity**
Non-Hispanic White	63
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	42
From 75 to 84	20
85 and over	11
Less than 65	15

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2016

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2016 were diabetes, high cholesterol, hypertension and ischemic heart disease.

Hypertension	52
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	39
Depression	27
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	19
Atrial Fibrilation	0
Heart Failure	19
Chronic Obstructive Pulmonary Disease	0
Diabetes	75
Dementia	23
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2017 were minimally invasive procedures, lab tests, methane breath test and hydrogen breath test.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	97
blood draw	164
chemotherapy	97
diagnostic procedures	26
doctor visit	560
hydrogen breath test	176
lab tests	460
methane breath test	176
minimally invasive procedures	829

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	19
Female	48

**Ethnicity**
Non-Hispanic White	47
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	29
From 75 to 84	0
85 and over	0
Less than 65	17

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2017

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2017 were diabetes, hypertension, high cholesterol and ischemic heart disease.

Hypertension	67
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	34
Depression	28
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	22
Atrial Fibrilation	0
Heart Failure	24
Chronic Obstructive Pulmonary Disease	0
Diabetes	75
Dementia	27
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2018 were minimally invasive procedures, lab tests, methane breath test and hydrogen breath test.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	87
blood draw	95
chemotherapy	87
diagnostic procedures	18
doctor visit	586
hydrogen breath test	189
lab tests	324
methane breath test	189
minimally invasive procedures	702

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	24
Female	48

**Ethnicity**
Non-Hispanic White	53
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	26
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2018

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2018 were diabetes, hypertension, high cholesterol and ischemic heart disease.

Hypertension	69
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	42
Depression	32
Chronic Kidney Disease	38
Asthma	0
Osteoperosis	19
Atrial Fibrilation	0
Heart Failure	28
Chronic Obstructive Pulmonary Disease	0
Diabetes	75
Dementia	24
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2019 were minimally invasive procedures, lab tests, methane breath test and hydrogen breath test.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	56
blood draw	44
chemotherapy	56
doctor visit	483
hydrogen breath test	156
lab tests	217
methane breath test	156
minimally invasive procedures	502

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	21
Female	52

**Ethnicity**
Non-Hispanic White	42
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	31
From 75 to 84	0
85 and over	0
Less than 65	18

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2019

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2019 were diabetes, hypertension, high cholesterol and ischemic heart disease.

Hypertension	71
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	44
Depression	34
Chronic Kidney Disease	37
Asthma	0
Osteoperosis	19
Atrial Fibrilation	0
Heart Failure	25
Chronic Obstructive Pulmonary Disease	0
Diabetes	75
Dementia	19
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2020 were minimally invasive procedures, lab tests, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	48
chemotherapy	48
doctor visit	492
hydrogen breath test	36
lab tests	82
methane breath test	36
minimally invasive procedures	474

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	26
Female	46

**Ethnicity**
Non-Hispanic White	49
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	33
From 75 to 84	0
85 and over	0
Less than 65	17

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2020

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2020 were diabetes, hypertension, high cholesterol and ischemic heart disease.

Hypertension	74
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	40
Depression	36
Chronic Kidney Disease	38
Asthma	0
Osteoperosis	26
Atrial Fibrilation	0
Heart Failure	31
Chronic Obstructive Pulmonary Disease	0
Diabetes	75
Dementia	17
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2021 were minimally invasive procedures, lab tests, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	67
chemotherapy	67
doctor visit	462
lab tests	111
minimally invasive procedures	551

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	24
Female	43

**Ethnicity**
Non-Hispanic White	45
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	34
From 75 to 84	14
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2021

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2021 were diabetes, hypertension, high cholesterol and chronic kidney disease.

Hypertension	75
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	39
Depression	34
Chronic Kidney Disease	40
Asthma	0
Osteoperosis	24
Atrial Fibrilation	0
Heart Failure	25
Chronic Obstructive Pulmonary Disease	0
Diabetes	75
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2022 were minimally invasive procedures, lab tests, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	39
chemotherapy	39
doctor visit	407
lab tests	61
minimally invasive procedures	621

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	25
Female	36

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

**Age**
From 65 to 74	23
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2022

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2022 were diabetes, high cholesterol, hypertension and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	39
Depression	38
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	38
Atrial Fibrilation	0
Heart Failure	31
Chronic Obstructive Pulmonary Disease	21
Diabetes	75
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA during 2023 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and lab tests.

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

biological response modifier (BRM) therapy	92
chemotherapy	92
doctor visit	389
lab tests	58
minimally invasive procedures	720

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	28
Female	36

**Ethnicity**
Non-Hispanic White	45
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	23
From 75 to 84	22
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD in 2023

The most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated during 2023 were diabetes, high cholesterol, hypertension and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	38
Depression	31
Chronic Kidney Disease	23
Asthma	0
Osteoperosis	33
Atrial Fibrilation	0
Heart Failure	25
Chronic Obstructive Pulmonary Disease	22
Diabetes	75
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Xavier Joseph Caro, MD for Medicare patients.

The highest averages for the top procedures that Dr. Xavier Joseph Caro, MD treated as a rheumatologist in Northridge, CA were minimally invasive procedures, lab tests, blood draw and methane breath test.

biological response modifier (BRM) therapy	104
blood draw	351
chemotherapy	104
diagnostic procedures	33
doctor visit	588
hydrogen breath test	131
lab tests	715
methane breath test	131
minimally invasive procedures	781
musculoskeletal imaging	36
pelvic imaging	17
preventive care	29
skin testing	11
spinal procedures	36
thoracic (chest) imaging	22
tuberculosis (TB) testing	11
vaccines	29
X-rays	99

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Xavier Joseph Caro, MD.

**Gender**
Male	27
Female	59

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	58
Native American / Alaskan Native	0
Hispanic	9
Other	0

**Age**
75 to 84	18
85 and over	6
Less than 65	14
65 to 74	34

Average of Total of Conditions of Medicare patients treated by Dr. Xavier Joseph Caro, MD From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Xavier Joseph Caro, MD treated were diabetes, hypertension, high cholesterol and ischemic heart disease.

Hypertension	67
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	39
Depression	32
Chronic Kidney Disease	28
Asthma	0
Osteoporosis	24
Heart Failure	24
Chronic Obstructive Pulmonary Disease	6
Diabetes	75
Atrial Fibrillation	0
Cancer	2
Dementia	16

Education & Training

Dr. Xavier Joseph Caro, MD graduated from University of California, San Francisco (UCSF), School of Medicine in 1973. He is certified by the Internal Medicine Internal Medicine (Sub: Rheumatology) and has a state license in California.

Medical School: University of California, San Francisco (UCSF), School of Medicine (1973)

Board Certification: Internal Medicine Internal Medicine (Sub: Rheumatology)

Licensed In: California

Affiliations & Hospitals

Dr. Xavier Joseph Caro, MD is associated with these hospitals and organizations:

Dignity Health

Northridge Hospital Medical Center

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General Payments

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

**Payments by Company**
Janssen Biotech, Inc.	$433 SIMPONI $306	STELARA $63	REMICADE $32	SIMPONI ARIA $32
Amgen Inc.	$355 Otezla $167	KRYSTEXXA $135	Tavneos $52
Valeant Pharmaceuticals North America LLC	$264 XIFAXANIBSD $139	XIFAXAN $125
Pfizer Inc.	$166 XELJANZ $79	INFLECTRA $75	$12
Questcor Pharmaceuticals	$151 ACTHAR- RHEUM $124	ACTHAR $27
Other	$670 Gamunex-C $136	SAPHNELO $126	KRYSTEXXA $123	OPSUMIT MACITENTAN $108	Actemra $66	Other $111

**Types of Payments**
Food and Beverage	$1,979
Education	$59

Biography

Dr. Xavier Caro is a physician who specializes in rheumatology (arthritis & autoimmune diseases). He studied medicine at the University of California, San Francisco (UCSF), School of Medicine.