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Dr. Hisham El-Bayar, MD, FACS

Accepting New Patients

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Specializes in: General Surgery and Surgical Oncology (Cancer Surgery)

Georgetown University School of Medicine (1986)

Professional interests include: pancreatic cancer, parathyroid disease, hepatobiliary surgery, and more.

1010 West La Veta Avenue Suite 470
Orange, CA 92868

(714) 835-8300

Dr. Hisham El-Bayar, MD, FACS is a general surgeon in Orange, CA specializing in general surgery and surgical oncology (cancer surgery). He graduated from Georgetown University School of Medicine in 1986 and has 39 years of experience. Dr. Hisham El-Bayar, MD, FACS is affiliated with Hoag, Providence Medical Foundation and Providence Affiliated Physicians, St. Joseph.

Office Locations

Address:

1010 West La Veta Avenue Suite 470
Orange, CA 92868

Some issues Dr. Hisham El-Bayar, MD, FACS can help you with:

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.

doctor visit	128

**Gender**
Male	50
Female	74

**Ethnicity**
Non-Hispanic White	75
Black	0
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	57
From 75 to 84	42
85 and over	0
Less than 65	0

Hypertension	73
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	45
Depression	25
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	24
Chronic Obstructive Pulmonary Disease	15
Diabetes	35
Dementia	12
Cancer	22

doctor visit	140
hospital care	55
inpatient care	55

**Gender**
Male	63
Female	86

**Ethnicity**
Non-Hispanic White	99
Black	0
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	49
85 and over	0
Less than 65	0

Hypertension	75
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	42
Depression	22
Chronic Kidney Disease	39
Asthma	12
Osteoperosis	19
Atrial Fibrilation	14
Heart Failure	26
Chronic Obstructive Pulmonary Disease	14
Diabetes	36
Dementia	8
Cancer	30

doctor visit	104
hospital care	14
inpatient care	14

**Gender**
Male	114
Female	154

**Ethnicity**
Non-Hispanic White	176
Black	0
Hispanic	44
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	142
From 75 to 84	88
85 and over	0
Less than 65	0

Hypertension	75
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	46
Depression	16
Chronic Kidney Disease	34
Asthma	12
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	37
Dementia	9
Cancer	31

abdominal surgery	13
doctor visit	121
gastrointestinal procedures	13
open surgery	13

**Gender**
Male	59
Female	60

**Ethnicity**
Non-Hispanic White	89
Black	0
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	65
From 75 to 84	36
85 and over	0
Less than 65	0

Hypertension	73
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	40
Depression	24
Chronic Kidney Disease	32
Asthma	15
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	0
Cancer	27

abdominal surgery	11
doctor visit	208
gastrointestinal procedures	11
hospital care	28
inpatient care	28
open surgery	11

**Gender**
Male	105
Female	101

**Ethnicity**
Non-Hispanic White	151
Black	0
Hispanic	27
Asian	14
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	68
85 and over	0
Less than 65	0

Hypertension	75
High Cholesterol	68
Stroke	14
Ischemic Heart Disease	52
Depression	32
Chronic Kidney Disease	53
Asthma	8
Osteoperosis	17
Atrial Fibrilation	28
Heart Failure	35
Chronic Obstructive Pulmonary Disease	30
Diabetes	42
Dementia	20
Cancer	26

**Gender**
Male	128
Female	111

**Ethnicity**
Non-Hispanic White	171
Black	0
Hispanic	0
Asian	30
Other	0
Native American	0

**Age**
From 65 to 74	79
From 75 to 84	87
85 and over	56
Less than 65	17

Hypertension	75
High Cholesterol	73
Stroke	12
Ischemic Heart Disease	52
Depression	26
Chronic Kidney Disease	57
Asthma	15
Osteoperosis	13
Atrial Fibrilation	23
Heart Failure	38
Chronic Obstructive Pulmonary Disease	30
Diabetes	43
Dementia	22
Cancer	23

doctor visit	131
hospital care	12
inpatient care	12

**Gender**
Male	53
Female	59

**Ethnicity**
Non-Hispanic White	74
Black	0
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	38
85 and over	0
Less than 65	0

Hypertension	68
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	44
Depression	21
Chronic Kidney Disease	46
Asthma	11
Osteoperosis	13
Atrial Fibrilation	16
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	38
Dementia	0
Cancer	28

doctor visit	102
hospital care	16
inpatient care	16

**Gender**
Male	53
Female	42

**Ethnicity**
Non-Hispanic White	69
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	39
From 75 to 84	36
85 and over	0
Less than 65	0

Hypertension	74
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	54
Depression	31
Chronic Kidney Disease	49
Asthma	0
Osteoperosis	0
Atrial Fibrilation	14
Heart Failure	27
Chronic Obstructive Pulmonary Disease	15
Diabetes	36
Dementia	16
Cancer	23

doctor visit	148

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Hisham El-Bayar, MD, FACS for Medicare patients.

The highest averages for the top procedures that Dr. Hisham El-Bayar, MD, FACS treated as a general surgeon in Orange, CA were hospital care, inpatient care, open surgery and abdominal surgery.

abdominal surgery	12
doctor visit	152
gastrointestinal procedures	12
hospital care	25
inpatient care	25
open surgery	12

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Hisham El-Bayar, MD, FACS.

**Gender**
Female	68
Male	62

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	4
Non-Hispanic White	90
Native American / Alaskan Native	0
Hispanic	15
Other	0

**Age**
85 and over	5
75 to 84	44
Less than 65	1
65 to 74	60

Average of Total of Conditions of Medicare patients treated by Dr. Hisham El-Bayar, MD, FACS From 2013 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. Hisham El-Bayar, MD, FACS treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	58
High Cholesterol	50
Stroke	2
Ischemic Heart Disease	37
Depression	19
Chronic Kidney Disease	34
Asthma	8
Osteoporosis	9
Heart Failure	20
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Atrial Fibrillation	13
Cancer	21
Dementia	8

Education & Training

Dr. Hisham El-Bayar, MD, FACS graduated from Georgetown University School of Medicine in 1986. He completed residency at Los Angeles County+USC Medical Center. He is certified by the Board Certification: General Surgery and has a state license in California.

Medical School: Georgetown University School of Medicine (1986)

Residency: Los Angeles County+USC Medical Center

Board Certification: Board Certification: General Surgery

Licensed In: California

Affiliations & Hospitals

Dr. Hisham El-Bayar, MD, FACS is associated with these hospitals and organizations:

Hoag

Providence Medical Foundation

Providence Affiliated Physicians, St. Joseph

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. Hisham El-Bayar, MD, FACS appears to accept the following insurance providers: Anthem Blue Cross HMO, Aetna HMO, Blue Shield of California, Anthem, United Healthcare HMO, Medicare Advantage, United Healthcare, Health Net HMO, CIGNA HMO and Insurance Plan.

Insurance Accepted by Provider includes:

According to our sources, Dr. Hisham El-Bayar, MD, FACS accepts the following insurance providers:

Anthem Blue Cross HMO

Aetna HMO

Blue Shield of California

Anthem

United Healthcare HMO

Medicare Advantage

United Healthcare

Health Net HMO

CIGNA HMO

Insurance Plan

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General Payments

These charts describe general payments received by Dr. Hisham El-Bayar, MD, FACS. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Intuitive Surgical, Inc.	$14,000 Da Vinci Surgical System $14,000
Ethicon US, LLC	$1,733 Endoscopy: Endocutters $1,512	Energy Harmonic $135	EVARREST $56	ENSEAL Product Family $20	Sutures $11
Aesculap, Inc.	$728 Surgical Technologies $475	Caiman Vessel Sealers $189	EinsteinVision $26	No Marketed Product Name $20	NO APPLICABLE MARKETED PRODUCT NAME $18
Davol Inc.	$537 PHASIX $493	$44
Medical Device Business Services, Inc.	$535 EVICEL Fibrin Sealant (Human) $535
Other	$2,692 OPDIVO $338	SIR-Spheres microspheres $255	Cook Medical Biliary $251	STRATTICE $245	AlloDerm $171	Other $1,432

**Types of Payments**
Education	$13,000
Food and Beverage	$4,577
Travel and Lodging	$2,647

Biography

Dr. Hisham El-Bayar sees patients in Orange, CA. His medical specialties are general surgery and surgical oncology (cancer surgery). These areas are among Dr. El-Bayar's clinical interests: lipoma, thyroid problems, and breast cancer surgery. His hospital/clinic affiliations include Hoag and Providence Medical Foundation. He usually is in-network for United Healthcare HMO, Anthem, and Blue California, as well as other insurance carriers. Doctor.com reports that he is accepting new patients at his office in Orange, CA. Dr. El-Bayar attended Georgetown University School of Medicine and then went on to complete his residency at a hospital affiliated with the University of California, San Diego (UCSD).