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Dr. George Hajjar, MD

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Specializes in: Medical Oncology, Adult Oncology and Adult Hematology

University of Aleppo Faculty of Medicine

Professional interests include: liver cancer, thoracentesis, non-Hodgkin's lymphoma, and more.

44151 N. 15th Street West Suite 101
Lancaster, CA 93534

(661) 902-5600

Dr. George Hajjar, MD is a medical oncologist in Valencia, CA specializing in medical oncology, adult oncology and adult hematology. He graduated from University of Aleppo Faculty of Medicine. Dr. George Hajjar, MD is affiliated with Antelope Valley Medical Center, Providence, Dignity Health and Northridge Hospital Medical Center.

Office Locations

23823 Valencia Boulevard
Valencia, CA 91355

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23823 Valencia Boulevard
Santa Clarita, CA 91355

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Antelope Valley Medical Center

44151 N. 15th Street West Suite 101
Lancaster, CA 93534

(661) 902-5600

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Some issues Dr. George Hajjar, MD can help you with:

Musculoskeletal Problems

The musculoskeletal system refers collectively to the bones, joints, ligaments, muscles, and nerves. It is what gives the body structure and movement. Because this system encompasses so much of the body, musculoskeletal problems are extremely varied and can happen almost anywhere. There are musculoskeletal problems that affect only the joints, those that affect the bones, those that affect tendons and ligaments, and those that can happen in any area of the body but cause pain and numbness.

Joint problems include bursitis and arthritis. Bursitis is the inflammation of a fluid-filled sac cushion on the outside of a joint, causing symptoms including pain and swelling. Arthritis is the inflammation and damage of a joint due to wear and tear or disease. There are several treatments for arthritis, but if the damage progresses far enough, joint replacement may be necessary. In joint replacement, a metal or plastic implant is surgically placed within the joint to make movement easier.

Bone problems include scoliosis, fractures, and osteoporosis. Scoliosis is a curvature of the spine, making the normally straight spine look like a 'C' or 'S.' It is treated with braces or surgery. Osteoporosis is a disease that causes bones to weaken and break easily. It's most common in women, especially older women. Fully half of all women over 65 have osteoporosis. Fractures are any break in the bone. They can be a simple crack or a severe and complicated shatter. Osteoporosis causes fractures in people who have it, but other causes are trauma (such as a fall) or overuse.

Tendon and ligament problems most often result from injury or overuse. Two good examples are ligament tears and tendonitis. The most common ligament tear is the ACL tear in the knee. This ligament supports and stabilizes the knee and is most often torn during sports activities. Tendonitis happens when a tendon, which connects muscles and bones together, becomes irritated and inflamed. This happens most often in older patients who push their bodies too far, leading to pain and swelling. Treatment for both tendon and ligament problems usually includes rest, ice, and supporting the area to let it heal.

Pain and numbness problems can be caused by overuse, disease, an injury, or a compressed nerve. Lower back pain and carpal tunnel syndrome are two of the most common conditions patients encounter. Lower back pain may be caused by sore muscles that have been overworked, or an injury to the disks separating the vertebrae in the spine. Lower back pain usually goes away on its own within a few days, but it may require medical treatment depending on the cause. Carpal tunnel syndrome occurs when the nerve at the base of the palm becomes trapped or pinched. Symptoms include tingling, pain, numbness, or weakness in the hand. Treatment involves rest and sometimes steroid injections.

Because the musculoskeletal system involves so much of the body, problems here can be incredibly varied in their type and severity. Some musculoskeletal problems will go away on their own or only require rest, while others may require medication, physical therapy, or even surgery.

In The News (see more mentions in the news)

“She decided on chemotherapy infusions for two hours every three weeks, and to do it closer to home at the City of Hope in Santa Clarita with Dr. George Hajjar overseeing her process.”—"'Everything seemed fine'", Santa Clarita Valley Signal, April 2022

“The family would like to send special thanks to the following amazing people: * Dr. George Hajjar and City of Hope Cancer center for their remarkable work in the fight against this disease.”—"Victoria Lynn McCracken", San Bernardino Sun, May 2020

“Dr. George Hajjar, oncologist for City of Hope, regional medical director for the North Valley: We try to deliver the care that people can get at our main campus, close to home - trying to get the...”—"Health care in the SCV: an evolving marketplace", Santa Clarita Valley Signal, October 2019

Noteworthy Medicare Patient Procedures Performed by Dr. George Hajjar, MD in 2023

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

Top 25%

By Volume:

inpatient hospital care

In 2012, Dr. George Hajjar, MD performed more inpatient hospital care (for patient admitted to hospital) 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. George Hajjar, MD treated as a medical oncologist in Valencia, CA during 2012 were hospital care, inpatient care, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

bone marrow tests	13
diagnostic procedures	13
doctor visit	1030
hospital care	202
inpatient care	202

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

doctor visit	921

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	99
Female	171

**Ethnicity**
Non-Hispanic White	181
Black	0
Hispanic	70
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	82
85 and over	38
Less than 65	40

Conditions of Medicare patients treated by Dr. George Hajjar, MD in 2013

Hypertension	72
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	47
Depression	12
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	26
Chronic Obstructive Pulmonary Disease	21
Diabetes	39
Dementia	7
Cancer	57

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. George Hajjar, MD treated as a medical oncologist in Valencia, CA during 2014 were hospital care, inpatient care, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

bone marrow tests	15
diagnostic procedures	15
doctor visit	1164
hospital care	56
inpatient care	56

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	125
Female	190

**Ethnicity**
Non-Hispanic White	207
Black	0
Hispanic	89
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	113
85 and over	38
Less than 65	39

Conditions of Medicare patients treated by Dr. George Hajjar, MD in 2014

Hypertension	72
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	43
Depression	28
Chronic Kidney Disease	28
Asthma	6
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	21
Chronic Obstructive Pulmonary Disease	19
Diabetes	39
Dementia	7
Cancer	56

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. George Hajjar, MD treated as a medical oncologist in Valencia, CA during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

doctor visit	1221
hospital care	104
inpatient care	104

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	276
Female	446

**Ethnicity**
Non-Hispanic White	454
Black	0
Hispanic	210
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	280
From 75 to 84	248
85 and over	76
Less than 65	118

Conditions of Medicare patients treated by Dr. George Hajjar, MD in 2015

Hypertension	75
High Cholesterol	44
Stroke	6
Ischemic Heart Disease	40
Depression	31
Chronic Kidney Disease	31
Asthma	14
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	20
Chronic Obstructive Pulmonary Disease	20
Diabetes	40
Dementia	7
Cancer	52

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. George Hajjar, MD treated as a medical oncologist in Valencia, CA during 2016 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and port flush.

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

biological response modifier (BRM) therapy	97
bone marrow tests	16
chemotherapy	97
diagnostic procedures	16
doctor visit	987
hospital care	11
inpatient care	11
minimally invasive procedures	118
port flush	41

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	188
Female	244

**Ethnicity**
Non-Hispanic White	274
Black	24
Hispanic	104
Asian	14
Other	0
Native American	0

**Age**
From 65 to 74	177
From 75 to 84	134
85 and over	47
Less than 65	74

Conditions of Medicare patients treated by Dr. George Hajjar, MD in 2016

Hypertension	74
High Cholesterol	46
Stroke	7
Ischemic Heart Disease	45
Depression	28
Chronic Kidney Disease	41
Asthma	24
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	24
Chronic Obstructive Pulmonary Disease	22
Diabetes	37
Dementia	8
Cancer	49

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. George Hajjar, MD treated as a medical oncologist in Valencia, CA during 2017 were hospital care, inpatient care, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

biological response modifier (BRM) therapy	186
chemotherapy	186
doctor visit	792
hormone therapy	31
hospital care	394
inpatient care	394
minimally invasive procedures	234
port flush	66

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	203
Female	229

**Ethnicity**
Non-Hispanic White	258
Black	39
Hispanic	90
Asian	26
Other	0
Native American	0

**Age**
From 65 to 74	187
From 75 to 84	121
85 and over	59
Less than 65	65

Conditions of Medicare patients treated by Dr. George Hajjar, MD in 2017

Hypertension	75
High Cholesterol	53
Stroke	6
Ischemic Heart Disease	50
Depression	30
Chronic Kidney Disease	49
Asthma	11
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	32
Chronic Obstructive Pulmonary Disease	23
Diabetes	44
Dementia	14
Cancer	44

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. George Hajjar, MD treated as a medical oncologist in Valencia, CA during 2018 were hospital care, inpatient care, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

biological response modifier (BRM) therapy	172
chemotherapy	172
doctor visit	796
hormone therapy	24
hospital care	679
inpatient care	679
minimally invasive procedures	209
port flush	26

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	216
Female	271

**Ethnicity**
Non-Hispanic White	294
Black	45
Hispanic	96
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	165
85 and over	63
Less than 65	74

Conditions of Medicare patients treated by Dr. George Hajjar, MD in 2018

Hypertension	75
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	52
Depression	32
Chronic Kidney Disease	55
Asthma	11
Osteoperosis	13
Atrial Fibrilation	18
Heart Failure	39
Chronic Obstructive Pulmonary Disease	33
Diabetes	45
Dementia	23
Cancer	44

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. George Hajjar, MD treated as a medical oncologist in Valencia, CA during 2019 were hospital care, inpatient care, chemotherapy and biological response modifier (BRM) therapy.

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

biological response modifier (BRM) therapy	81
chemotherapy	81
doctor visit	644
hospital care	268
inpatient care	268
minimally invasive procedures	81

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	160
Female	177

**Ethnicity**
Non-Hispanic White	216
Black	19
Hispanic	75
Asian	15
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	114
85 and over	50
Less than 65	48

Conditions of Medicare patients treated by Dr. George Hajjar, MD in 2019

Hypertension	75
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	47
Depression	32
Chronic Kidney Disease	50
Asthma	13
Osteoperosis	17
Atrial Fibrilation	14
Heart Failure	37
Chronic Obstructive Pulmonary Disease	31
Diabetes	38
Dementia	0
Cancer	40

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. George Hajjar, MD treated as a medical oncologist in Valencia, CA during 2020 were minimally invasive procedures, chemotherapy, biological response modifier (BRM) therapy and hospital care.

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

biological response modifier (BRM) therapy	307
chemotherapy	307
doctor visit	537
hormone therapy	37
hospital care	225
inpatient care	225
minimally invasive procedures	379
port flush	25

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	232
Female	256

**Ethnicity**
Non-Hispanic White	330
Black	30
Hispanic	90
Asian	23
Other	0
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	165
85 and over	51
Less than 65	56

Conditions of Medicare patients treated by Dr. George Hajjar, MD in 2020

Hypertension	71
High Cholesterol	55
Stroke	8
Ischemic Heart Disease	41
Depression	21
Chronic Kidney Disease	48
Asthma	9
Osteoperosis	15
Atrial Fibrilation	11
Heart Failure	30
Chronic Obstructive Pulmonary Disease	23
Diabetes	37
Dementia	16
Cancer	43

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. George Hajjar, MD treated as a medical oncologist in Valencia, CA during 2021 were minimally invasive procedures, hospital care, inpatient care and chemotherapy.

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

biological response modifier (BRM) therapy	194
chemotherapy	194
doctor visit	438
hormone therapy	24
hospital care	211
inpatient care	211
minimally invasive procedures	218
port flush	21

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	161
Female	183

**Ethnicity**
Non-Hispanic White	244
Black	15
Hispanic	56
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	106
85 and over	54
Less than 65	26

Conditions of Medicare patients treated by Dr. George Hajjar, MD in 2021

Hypertension	75
High Cholesterol	65
Stroke	10
Ischemic Heart Disease	47
Depression	27
Chronic Kidney Disease	59
Asthma	9
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	35
Chronic Obstructive Pulmonary Disease	21
Diabetes	40
Dementia	17
Cancer	43

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. George Hajjar, MD treated as a medical oncologist in Valencia, CA during 2022 were hospital care, inpatient care, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

biological response modifier (BRM) therapy	196
chemotherapy	196
doctor visit	477
hospital care	267
inpatient care	267
minimally invasive procedures	237
port flush	27

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	184
Female	217

**Ethnicity**
Non-Hispanic White	278
Black	14
Hispanic	62
Asian	32
Other	15
Native American	0

**Age**
From 65 to 74	160
From 75 to 84	145
85 and over	58
Less than 65	38

Conditions of Medicare patients treated by Dr. George Hajjar, MD in 2022

Hypertension	75
High Cholesterol	73
Stroke	17
Ischemic Heart Disease	38
Depression	28
Chronic Kidney Disease	37
Asthma	17
Osteoperosis	17
Atrial Fibrilation	28
Heart Failure	32
Chronic Obstructive Pulmonary Disease	26
Diabetes	39
Dementia	12
Cancer	49

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. George Hajjar, MD for Medicare patients.

The highest averages for the top procedures that Dr. George Hajjar, MD treated as a medical oncologist in Valencia, CA were hospital care, inpatient care, minimally invasive procedures and chemotherapy.

biological response modifier (BRM) therapy	176
bone marrow tests	14
chemotherapy	176
diagnostic procedures	14
doctor visit	818
hormone therapy	29
hospital care	241
inpatient care	241
minimally invasive procedures	210

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. George Hajjar, MD.

**Gender**
Male	167
Female	216

**Ethnicity**
Black / African American	16
Asian / Pacific Islander	14
Non-Hispanic White	248
Native American / Alaskan Native	0
Hispanic	85
Other	1

**Age**
75 to 84	126
85 and over	48
Less than 65	52
65 to 74	156

Average of Total of Conditions of Medicare patients treated by Dr. George Hajjar, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. George Hajjar, MD treated were hypertension, high cholesterol, cancer and ischemic heart disease.

Hypertension	67
High Cholesterol	49
Stroke	7
Ischemic Heart Disease	40
Depression	24
Chronic Kidney Disease	38
Asthma	11
Osteoporosis	11
Heart Failure	26
Chronic Obstructive Pulmonary Disease	21
Diabetes	36
Atrial Fibrillation	12
Dementia	10
Cancer	43

Education & Training

Dr. George Hajjar, MD graduated from University of Aleppo Faculty of Medicine. He completed residency at Seton Hall University Affiliated Hospitals. He is certified by the American Board of Internal Medicine: Hematology and has a state license in California.

Medical School: University of Aleppo Faculty of Medicine

Residency: Seton Hall University Affiliated Hospitals (1996)

Board Certification: American Board of Internal Medicine: Hematology

Licensed In: California

Affiliations & Hospitals

Dr. George Hajjar, MD is associated with these hospitals and organizations:

Antelope Valley Medical Center

Providence

Dignity Health

Northridge Hospital Medical Center

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. George Hajjar, MD appears to accept the following insurance providers: Humana Medicare Advantage, Anthem Blue Cross HMO, Aetna HMO, CIGNA HMO, Medicare Advantage, Blue Shield of California and United Healthcare.

Insurance Accepted by Provider includes:

According to our sources, Dr. George Hajjar, MD accepts the following insurance providers:

Humana Medicare Advantage

Anthem Blue Cross HMO

Aetna HMO

CIGNA HMO

Medicare Advantage

Blue Shield of California

United Healthcare

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General Payments

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

**Payments by Company**
Amgen Inc.	$13,719 XGEVA $9,533	Kyprolis $3,861	Vectibix $215	$109
Astellas Pharma US Inc	$5,853 XTANDI $5,754	$99
Genentech USA, Inc.	$3,912 Avastin $337	TECENTRIQ $250	TARCEVA $91	Perjeta $75	Alecensa $36	Other $3,123
Athenex Pharmaceutical Division, LLC	$3,850 Encequidar $3,850
INSYS Therapeutics Inc	$3,801 Syndros $3,764	SUBSYS $37
Other	$15,528 Stivarga $3,699	Abraxane $2,437	Nexavar $1,651	SOLIRIS $788	KEYTRUDA $397	Other $6,557

**Types of Payments**
Consulting Fee	$19,149
Food and Beverage	$11,073
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$8,645
Honoraria	$3,850
Travel and Lodging	$3,073
Other	$873

Biography

Dr. George Hajjar is a specialist in adult hematology, adult oncology, and medical oncology. Dr. Hajjar's areas of expertise include the following: tracheal cancer, tumor, and clinical trials. His professional affiliations include Antelope Valley Medical Center, Northridge Hospital Medical Center, and Providence. He is an in-network provider for several insurance carriers, including Anthem, Blue California, and Aetna. He welcomes new patients at his office inSanta Clarita, CA as reported by Doctor.com. Before performing his residency at a hospital affiliated with Seton Hall University, Dr. Hajjar attended the University of Aleppo Faculty of Medicine for medical school. In addition to English, Dr. Hajjar (or staff) speaks Arabic and Spanish.