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Dr. Walid S. Arnaout, MD

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Specializes in: General Surgery and Trauma Surgery

American University of Beirut Faculty of Medicine

Professional interests include: partial splenectomy, thyroid problems, muscle biopsy, and more.

18250 Roscoe Boulevard Suite 220
Northridge, CA 91325

(805) 379-9696

Dr. Walid S. Arnaout, MD is a general surgeon in Northridge, CA specializing in general surgery and trauma surgery. He graduated from American University of Beirut Faculty of Medicine. Dr. Walid S. Arnaout, MD is affiliated with Providence, Providence Holy Cross Medical Center, Dignity Health and Northridge Hospital Medical Center.

Office Locations

18250 Roscoe Boulevard Suite 220
Northridge, CA 91325

open_in_new

Northridge Hospital Medical Center

77 E Rolling Oaks Drive Suite 203
Thousand Oaks, CA 91361

(805) 379-9696

(805) 379-9695

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Some issues Dr. Walid S. Arnaout, MD can help you with:

Breast Biopsy

Breast biopsy is a procedure where a small sample of tissue is collected from the breast for testing. A physician may prescribe a breast biopsy for a variety of reasons, but they are most frequently prescribed for a lump found in the breast. Biopsy samples extracted are examined by pathologists in a laboratory setting and are tested to determine if they are cancerous or benign, or indicative of some other condition. Depending on the lab results, physicians may prescribe additional treatment. Other circumstances which may prompt a breast biopsy include:

Mammograms that detect other unusual features in the chest, such as a cyst or calcium deposit
Breast scans or ultrasounds that display abnormalities
Nipple changes, such as scaling, crusting, or bloody discharge

Breast biopsies are collected through several different procedures and the specific type of biopsy that a patient receives depends on the size, location, and features of a breast lump or irregularity. The three main methods of collecting a breast biopsy include:

Fine needle aspiration (FNA biopsy), where a thin needle is directed into a breast lump or abnormality, extracting a small sample of tissue or liquid
Core needle biopsy (CNB biopsy), where a hollow needle is directed into a breast lump or abnormality, extracting cylinders of tissue called "cores"
Open (surgical) biopsy, where a breast lump is removed through an incision in the breast

Fine needle aspiration (FNA) and core needle biopsy (CNB) are sometimes image-guided, where a mammogram, ultrasound, or MRI helps direct the physician performing the needle extraction.

Fine needle aspiration, the most common biopsy method, generally requires few patient preparations. It is recommended patients avoid using lotion, deodorant, and perfume prior to their biopsy procedure. FNA biopsy is performed with local anesthesia (topical numbing cream) and typically has a quick recovery, but patients may experience soreness for a few days. Core needle biopsy extracts slightly more tissue than an FNA biopsy.

Open (surgical) biopsy is more invasive and requires general anesthesia, where patients are put to sleep during the procedure. Patients must fast prior to the surgery. After the biopsy is performed, patients are monitored in a recovery room for a time before being discharged, when they will need someone else to provide transportation.

Although some may consider breast biopsy to be a simple procedure, it can catch critical issues - particularly breast cancer - that impact wellness. If a breast biopsy reveals an underlying condition like life-threatening cancer, patients can receive the diagnosis and medical treatment that is necessary for their long-term health.

Pancreatectomy (Pancreas Removal)

Pancreatectomy is surgery to remove part or all of the pancreas to treat pancreatitis, tumors, or cancer. The pancreas is located behind the stomach and near the small intestine and spleen. There are three sections of the pancreas:

The head, which is the portion closest to the intestines
The body, which is the middle portion of the pancreas
The tail, which is the portion nearest the spleen

Pancreas removal procedures differ based on how much of the pancreas and surrounding organs are removed. There are three types of pancreatectomy:

Distal pancreatectomy removes the tail and body of the pancreas. This procedure treats tumors confined to these areas.
Pancreaticoduodenectomy, or the Whipple procedure, removes the pancreas, duodenum, bile duct, and, sometimes, part of the stomach. The Whipple procedure is used for pancreatic tumors that have not spread past the head of the pancreas and for other conditions affecting the pancreas, duodenum, and bile duct.
Total pancreatectomy removes the whole pancreas along with the duodenum, gallbladder, parts of the stomach and bile duct, surrounding lymph nodes, and, potentially, the spleen. Rarely performed, total pancreatectomy treats conditions that involve the entire pancreas, such as tumors found in multiple sites on the pancreas, or for rare tumors such as intraductal papillary mucinous neoplasms (IPMN).

Pancreatectomy can be done by open or minimally invasive surgery. During a laparoscopic pancreatectomy, the surgeon will use tiny incisions to insert a thin tube with a camera, or laparoscope, into the abdomen. Open surgery, or a laparotomy, is performed through a larger incision on the abdomen. If additional organs are removed, some procedures may require that the small intestine be reconnected to the stomach.

The hospital for pancreatectomy stay may be between 1-3 weeks. Generally, laparoscopic surgeries require shorter recovery periods. Whether patients undergo an open or laparoscopic procedure is determined by factors such as their condition and the extent of their procedure. For example, open surgery tends to be more common for distal pancreatectomies. If patients have difficulty eating, they may require a nasogastric tube, inserted through the nose, to carry food to their stomachs. A catheter can be inserted into the bladder if patients have trouble urinating. Full recovery may take about two months.

Thyroid Problems

Thyroid problems are a group of conditions that alter hormone regulation and metabolism. The thyroid is a small, butterfly-shaped gland located in the lower neck, just below the Adam's apple (laryngeal prominence) and larynx (voice box). Despite its small size, the thyroid has an outsized effect on the body by regulating hormones that control metabolism. Metabolism is the body's process of converting consumed food into fuel to power the entire body. Heart rate, weight, cholesterol, body temperature, and even physical growth and development are all affected by the metabolism.

When the thyroid malfunctions, the body is unable to properly process and allocate energy. Thyroid problems, such as hyperthyroidism (overactive thyroid) and hypothyroidism (underactive thyroid), cause irregular metabolism. In some cases, the body produces antibodies that attack the thyroid cells for unknown reasons. The damaged thyroid responds by releasing either too little or too much T3 and T4 thyroid hormones. Thyroid malfunctions may also arise from genetic causes or iodine deficiency. Thyroid problems may include:

Hashimoto's thyroiditis, an autoimmune disease that causes hypothyroidism
Graves' disease, an autoimmune disease that causes hyperthyroidism
Goiter
Thyroid nodule
Thyroid cancer

Hashimoto's is the leading cause of hypothyroidism, which is when the thyroid does not produce enough hormones to stimulate adequate metabolism. The condition is diagnosed by blood tests that measure TSH (thyroid stimulating hormone) and detect Hashimoto's antibodies. Symptoms of hypothyroidism include sluggish metabolism, inflammation, fatigue, weight gain, brittle hair, dry skin, and sensitivity to cold. To supplement impaired thyroid function, patients with Hashimoto's are typically prescribed synthetic thyroid hormone pills. Such patients may need to consume synthetic thyroids for the rest of their lives. Other treatments may include dietary changes, such as the avoidance of certain foods and medication to reduce inflammation. Frequent blood tests can inform patients if their TSH levels are within a normal range.

Grave's disease is most frequently the cause of hyperthyroidism, which is when the thyroid produces too many hormones, overstimulating one's metabolism. The condition is also diagnosed by blood tests that measure TSH and detect Grave's antibodies. Elevated heart rate, high blood pressure, sweating, bulging eyes, and weight loss are common symptoms of hyperthyroidism. Treatments for hyperthyroidism include oral radioactive iodine, which slowly shrinks the thyroid, slowing the production of excess thyroid hormone. Other anti-thyroid medications such as methimazole (Tapazole) also reduce the production of thyroid hormones. Blood pressure medications known as beta blockers can ease the increased heart rate caused by hyperthyroidism. If treatments are unsuccessful, patients may be prescribed a thyroidectomy, or surgery to remove part or all of the thyroid. Some patients with hyperthyroidism may require ophthalmological (eye medicine) treatments such as eye drops, prednisone, and surgery to reduce eye swelling and bulging.

Untreated thyroid disorders frequently lead to goiters or thyroid nodules. A thyroid goiter is a large lump that can be felt near the base of the neck and is made of swollen thyroid tissue or nodules (excess cell growth). Nodules and goiters are diagnosed by CT scan or ultrasound. Obstructive goiters can cause pain, coughing, and abnormal breathing. The most common cause of goiters is hyperthyroidism (overactive thyroid). However, Hashimoto's is also known to cause goiters or nodules. Goiters develop from continued damage from antibodies to the thyroid over time. At times, a goiter can result from a cancerous thyroid tumor. Most goiters and nodules are themselves benign.

The exact causes of thyroid cancer are unknown. People who develop thyroid cancer may or may not have another thyroid problem such as Hashimoto's or Grave's disease. Symptoms of thyroid cancer include a nodule that can be felt on the neck, hoarseness, difficulty swallowing, swelling in the neck, and neck and throat pain. CT and MRI scans are used to diagnose thyroid cancer. There are four types of thyroid cancer which vary in intensity. Thyroidectomy (thyroid removal surgery) is usually prescribed to treat thyroid cancer.

Thyroid problems are often long-term conditions that require some form of treatment. With regular monitoring and medication, many people with thyroid problems are able to lead active and fulfilling lives.

Noteworthy Medicare Patient Procedures Performed by Dr. Walid S. Arnaout, MD in 2023

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

Top 10%

By Volume:

inpatient hospital care

In 2023, Dr. Walid S. Arnaout, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 90% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

doctor visit	58
hospital care	202
inpatient care	202

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2013 were hospital care, inpatient care and emergency care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

emergency care	13
hospital care	167
inpatient care	167

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	68
Female	59

**Ethnicity**
Non-Hispanic White	87
Black	0
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	43
From 75 to 84	43
85 and over	22
Less than 65	19

Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD in 2013

Hypertension	75
High Cholesterol	63
Stroke	14
Ischemic Heart Disease	54
Depression	33
Chronic Kidney Disease	37
Asthma	0
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	37
Chronic Obstructive Pulmonary Disease	24
Diabetes	46
Dementia	17
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

hospital care	357
inpatient care	357

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	87
Female	98

**Ethnicity**
Non-Hispanic White	155
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	57
From 75 to 84	57
85 and over	51
Less than 65	20

Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD in 2014

Hypertension	75
High Cholesterol	60
Stroke	19
Ischemic Heart Disease	52
Depression	38
Chronic Kidney Disease	45
Asthma	17
Osteoperosis	18
Atrial Fibrilation	24
Heart Failure	44
Chronic Obstructive Pulmonary Disease	29
Diabetes	38
Dementia	23
Cancer	21

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2015 were hospital care, inpatient care and emergency care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

emergency care	24
hospital care	329
inpatient care	329

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	182
Female	192

**Ethnicity**
Non-Hispanic White	302
Black	0
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	114
From 75 to 84	122
85 and over	108
Less than 65	30

Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD in 2015

Hypertension	75
High Cholesterol	73
Stroke	21
Ischemic Heart Disease	61
Depression	39
Chronic Kidney Disease	52
Asthma	20
Osteoperosis	15
Atrial Fibrilation	28
Heart Failure	49
Chronic Obstructive Pulmonary Disease	26
Diabetes	47
Dementia	32
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

doctor visit	33
hospital care	342
inpatient care	342

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	127
Female	112

**Ethnicity**
Non-Hispanic White	196
Black	11
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	79
From 75 to 84	71
85 and over	67
Less than 65	22

Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD in 2016

Hypertension	75
High Cholesterol	72
Stroke	13
Ischemic Heart Disease	55
Depression	36
Chronic Kidney Disease	52
Asthma	32
Osteoperosis	13
Atrial Fibrilation	29
Heart Failure	51
Chronic Obstructive Pulmonary Disease	29
Diabetes	40
Dementia	26
Cancer	20

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

doctor visit	42
hospital care	365
inpatient care	365

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	126
Female	126

**Ethnicity**
Non-Hispanic White	198
Black	0
Hispanic	27
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	88
From 75 to 84	74
85 and over	62
Less than 65	28

Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD in 2017

Hypertension	75
High Cholesterol	60
Stroke	17
Ischemic Heart Disease	46
Depression	34
Chronic Kidney Disease	44
Asthma	11
Osteoperosis	19
Atrial Fibrilation	20
Heart Failure	33
Chronic Obstructive Pulmonary Disease	25
Diabetes	38
Dementia	29
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

doctor visit	84
hospital care	561
inpatient care	561

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	141
Female	142

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

**Age**
From 65 to 74	98
From 75 to 84	90
85 and over	68
Less than 65	27

Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD in 2018

Hypertension	75
High Cholesterol	70
Stroke	12
Ischemic Heart Disease	50
Depression	39
Chronic Kidney Disease	53
Asthma	11
Osteoperosis	16
Atrial Fibrilation	23
Heart Failure	38
Chronic Obstructive Pulmonary Disease	20
Diabetes	41
Dementia	29
Cancer	17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

doctor visit	60
hospital care	403
inpatient care	403

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	126
Female	129

**Ethnicity**
Non-Hispanic White	193
Black	0
Hispanic	26
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	78
85 and over	66
Less than 65	25

Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD in 2019

Hypertension	75
High Cholesterol	71
Stroke	18
Ischemic Heart Disease	49
Depression	40
Chronic Kidney Disease	54
Asthma	13
Osteoperosis	17
Atrial Fibrilation	26
Heart Failure	46
Chronic Obstructive Pulmonary Disease	29
Diabetes	44
Dementia	33
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

hospital care	284
inpatient care	284

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	88
Female	87

**Ethnicity**
Non-Hispanic White	133
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	61
From 75 to 84	58
85 and over	42
Less than 65	14

Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	59
Depression	39
Chronic Kidney Disease	64
Asthma	17
Osteoperosis	15
Atrial Fibrilation	20
Heart Failure	38
Chronic Obstructive Pulmonary Disease	22
Diabetes	44
Dementia	29
Cancer	21

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

doctor visit	77
hospital care	294
inpatient care	294

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	112
Female	116

**Ethnicity**
Non-Hispanic White	174
Black	0
Hispanic	24
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	82
85 and over	50
Less than 65	16

Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD in 2021

Hypertension	75
High Cholesterol	73
Stroke	15
Ischemic Heart Disease	58
Depression	39
Chronic Kidney Disease	55
Asthma	14
Osteoperosis	21
Atrial Fibrilation	17
Heart Failure	39
Chronic Obstructive Pulmonary Disease	23
Diabetes	44
Dementia	32
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

doctor visit	46
hospital care	249
inpatient care	249

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	100
Female	113

**Ethnicity**
Non-Hispanic White	145
Black	0
Hispanic	26
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	60
85 and over	51
Less than 65	19

Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	29
Ischemic Heart Disease	48
Depression	36
Chronic Kidney Disease	39
Asthma	11
Osteoperosis	24
Atrial Fibrilation	33
Heart Failure	40
Chronic Obstructive Pulmonary Disease	22
Diabetes	50
Dementia	23
Cancer	25

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Walid S. Arnaout, MD for Medicare patients.

The highest averages for the top procedures that Dr. Walid S. Arnaout, MD treated as a general surgeon in Northridge, CA were hospital care, inpatient care and emergency care.

doctor visit	57
emergency care	18
hospital care	323
inpatient care	323

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Walid S. Arnaout, MD.

**Gender**
Male	105
Female	106

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	5
Non-Hispanic White	165
Native American / Alaskan Native	0
Hispanic	22
Other	1

**Age**
75 to 84	66
85 and over	53
Less than 65	20
65 to 74	71

Average of Total of Conditions of Medicare patients treated by Dr. Walid S. Arnaout, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Walid S. Arnaout, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	68
High Cholesterol	62
Stroke	16
Ischemic Heart Disease	48
Depression	33
Chronic Kidney Disease	45
Asthma	13
Osteoporosis	15
Heart Failure	37
Chronic Obstructive Pulmonary Disease	22
Diabetes	39
Atrial Fibrillation	21
Cancer	16
Dementia	24

Education & Training

Dr. Walid S. Arnaout, MD graduated from American University of Beirut Faculty of Medicine. He completed residency at Vanderbilt University Medical Center. He is certified by the Surgery General Surgery and has a state license in California.

Medical School: American University of Beirut Faculty of Medicine

Residency: Vanderbilt University Medical Center (1989)

Board Certification: Surgery General Surgery

Licensed In: California

Affiliations & Hospitals

Dr. Walid S. Arnaout, MD is associated with these hospitals and organizations:

Providence

Providence Holy Cross Medical Center

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. Walid S. Arnaout, MD appears to accept the following insurance providers: Medicaid, CIGNA PPO, Interplan PPO and Medicare.

Insurance Accepted by Provider includes:

According to our sources, Dr. Walid S. Arnaout, MD accepts the following insurance providers:

Medicaid

CIGNA PPO

Interplan PPO

Medicare

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General Payments

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

**Payments by Company**
Intuitive Surgical, Inc.	$33,500 Da Vinci Surgical System $17,500	DAVINCI XI $16,000
ACell, Inc.	$358 $358
Boston Scientific Corporation	$105 EPIC BILIARY $105
Mallinckrodt LLC	$21 OFIRMEV $21
Medtronic USA, Inc.	$20 AQUAMANTYS $20

**Types of Payments**
Education	$29,000
Travel and Lodging	$4,376
Food and Beverage	$628

Biography

Dr. Walid Arnaout is a general surgery and trauma surgery specialist in Thousand Oaks, CA and Northridge, CA. Areas of expertise for Dr. Arnaout include laparoscopic gastrostomy, thyroid problems, and pancreatectomy (pancreas removal). Dr. Arnaout's hospital/clinic affiliations include Providence Holy Cross Medical Center and Northridge Hospital Medical Center. HealthSmart, Cigna, and CIGNA Plans seem to be the insurance carriers that Dr. Arnaout accepts. Dr. Arnaout welcomes new patients at his office inThousand Oaks, CA as reported by Dignity Health. He is a graduate of American University of Beirut Faculty of Medicine. His medical residency was performed at Vanderbilt University Medical Center. In addition to English, Dr. Arnaout speaks Arabic.