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Home > CA Providers > Vascular Surgeons

Dr. Theodore H. Teruya, MD

Accepting New Patients

(74 Ratings)

Specializes in: Vascular Surgery and General Surgery

University of Hawaii at Manoa, John A. Burns School of Medicine

Professional interests include: arterial thrombosis, embolectomy, peripheral vascular disease, and more.

11370 Anderson Street Suite 2100
Loma Linda, CA 92354

(909) 558-2822

Dr. Theodore H. Teruya, MD is a vascular surgeon in Pasadena, CA specializing in vascular surgery and general surgery. He graduated from University of Hawaii at Manoa, John A. Burns School of Medicine. Dr. Theodore H. Teruya, MD is affiliated with Providence, Saddleback Medical Center, Cedars-Sinai, MemorialCare, Providence Mission Hospital - Laguna Beach and Providence Mission Hospital - Mission Viejo.

Office Locations

630 S Raymond Avenue Suite 204
Pasadena, CA 91105

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Providence Mission Hospital - Mission Viejo

11370 Anderson Street Suite 2100
Loma Linda, CA 92354

(909) 558-2822

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Some issues Dr. Theodore H. Teruya, MD can help you with:

Angioplasty

Angioplasty is a common, minimally invasive procedure performed to restore blood flow in arteries and veins that have become narrowed or blocked. Age or illness can cause plaque to build up at certain spots within the veins and arteries, and if enough collects, it can restrict the flow of blood. Angioplasty uses a tiny balloon at the end of a small, flexible tube to inflate within the narrowed section and open it up again.

Angioplasty may be performed in several different areas of the body and for a variety of reasons, most often:

Peripheral arterial disease, which reduces blood flow in the arms or legs
Atherosclerosis, or general hardening of the arteries
Carotid artery stenosis, or narrowing of the arteries in the neck that supply the brain
Coronary artery disease, or narrowing of the arteries near the heart
Renal vascular hypertension, or narrowing of the arteries in the kidney, leading to increased blood pressure

During angioplasty, a patient is given a sedative while lying on a table under an x-ray machine. A catheter (a thin, flexible, and hollow tube) is inserted into the patient's skin in the arm or groin and guided into the blocked artery. Dye is injected via the catheter, and x-rays are used to position the tip of the catheter exactly at the blockage. The tiny balloon is guided through the catheter and inflated with saline. It pushes the plaque out of the way, squishing it against the walls of the artery. The balloon may be inflated and deflated several times to let blood pass by. A stent, a tiny tube of metal mesh like a spring, may be inserted to help keep the artery open. Then the x-ray is used again to check that blood is flowing properly, the catheter is removed, and the tiny incision is bandaged.

There are no nerves within veins and arteries, so an angioplasty is generally not painful. However, there may be some discomfort at the site of the incision and when the balloon is inflated. Overall, angioplasty is a very effective and low-risk procedure, useful for helping patients avoid more difficult bypass surgery.

Peripheral Bypass Surgery

Peripheral bypass surgery is a procedure that reroutes blood flow around a blockage in the arteries of the arms or legs. Atherosclerosis, or plaque buildup, can affect these arteries in a condition called peripheral artery disease or PAD. A thick, waxy substance composed of cholesterol and minerals builds up within the blood vessels, and in severe cases it can clog arteries. Without enough blood getting to the muscles, patients can experience weakness and pain. Peripheral bypass surgery opens up a new pathway for blood to flow where it is needed. Sometimes peripheral bypass surgery is used when arteries are damaged, for instance, by a severe injury. While it can be performed in the arms, it is most commonly done in the calf, knee, thigh, or hip.

During surgery, the blockage is identified, and an incision is made to expose the artery. The surgeon prepares a tube, called a graft, to be used as the bypass. Sometimes this tube is synthetic, and sometimes a piece of the patient's own vein or artery is used. The ends of the bypass graft are attached to the artery above and below the blockage. Now blood can simply flow around and continue on its way.

After a peripheral bypass, patients may need to spend a couple of days in the hospital while doctors make sure the bypass is working and not leaking. If the bypass was done in the leg, doctors may check the pulse in the feet to make sure blood is flowing well. Patients may experience some swelling in the area where they had surgery. Raising an arm or leg will help. Patients will likely be back to normal activities within 2-3 weeks.

Stroke

A stroke is a medical emergency that occurs when a blood vessel supplying oxygen and nutrients to the brain is ruptured or blocked. The brain cannot function without a steady supply of oxygen and nutrients, so when the blood supply to the brain is interrupted, even for a brief moment, brain cells begin to die. When a sufficient number of brain cells die, the brain itself can no longer function, meaning that strokes are very dangerous. Strokes can result in impaired movement, speech, cognitive ability, the impairment of important physical functions, and even death.

Anyone can have a stroke, regardless of age and health. Strokes are known to happen at random. However, certain conditions and behaviors can increase one's risk of stroke over time.

Risk factors for stroke include:

Heart disease
Older age
Smoking
Diabetes
High blood pressure
High blood cholesterol and lipids

There are two main types of stroke: ischemic stroke and hemorrhagic stroke. Ischemic stroke occurs more commonly and is when a blood vessel in the brain becomes blocked. Blockages are caused by blood clots and built-up plaque (deposits of fat and cholesterol), which leads to atherosclerosis, a condition where the blood vessels narrow and harden. The resultant restricted blood flow may lead to an ischemic stroke by blocking essential oxygen to the brain, causing the heart to exert more effort to pump blood.

Hemorrhagic stroke occurs when a blood vessel in or around the brain ruptures. The burst vessel leaks blood into surrounding brain tissue, causing irreparable brain damage.

Hemorrhagic strokes are less common and may occur from head injuries, brain aneurysms, brain tumors, and bleeding disorders, amongst other conditions.

Both ischemic and hemorrhagic strokes require immediate medical treatment. Medical intervention can prevent severe and life-threatening brain damage. Signs of stroke include:

-Disorientation or confusion

-Difficulty speaking

-Difficulty walking

-Impaired vision

-Weakness in the face, legs, or arms

-Severe headaches

When someone suspected of having a stroke reaches the hospital, the patient will usually receive a CT or other scan that provides an image of the brain. The scan results can reveal clotted or leaking blood in the brain. Physical exams, neurological exams, and blood tests may also be used to check for blood clotting and sugar. Treatment begins generally immediately if a stroke is detected.

Medical treatment for ischemic strokes includes a thrombolytic medicine which breaks up and disperses blood clots. This medicine can greatly improve stroke recovery and long-term health. However, the thrombolytic medicine must be administered as soon as possible to achieve these results. Other treatments for ischemic strokes are blood thinners and thrombectomy, a surgical procedure to remove a blood clot in the brain. Thrombectomy is performed by inserting a catheter (thin needle) into the artery to reach the blood clot and mechanically remove it. With the clot removed, normal blood flow to the brain resumes. Thrombectomy is typically performed at most six hours after a patient shows signs of a stroke.

Hemorrhagic strokes are treated with blood-saving medication and surgery. For a hemorrhagic stroke caused by the rupture of an aneurysm (blood vessel bulges), surgery to stem the bleeding aneurysm and vessel may be used. One surgical technique is stent-assisted coiling, which adds a stent (small wire-meshed tube) into the blood vessel to block the leaking opening of the aneurysm. A non-surgical procedure is endovascular coiling, where a catheter (thin, hollow needle) places a platinum wire coil at the spot of the aneurysm. The coil blocks bleeding and prevents the aneurysm from continuing to leak blood. These procedures are usually combined with blood-thickening medications. Blood transfusions may be administered if substantial blood loss has occurred.

Since stroke patients may have lost some essential functions while the blood flow to their brains was obstructed, both ischemic stroke and hemorrhage stroke patients may receive post-stroke rehabilitation to rebuild their physical and mental abilities. Some restorative treatments include occupational, physical, and speech therapy. Patients may also receive care from neurologists, who can assist patients in recovering certain brain functions and cognitive abilities, and rehabilitation psychologists, who may help patients with their emotional, behavioral, and cognitive recovery. Some stroke patients require lengthy rehabilitation and may never fully regain function, while others may recover more quickly. While the fastest recovery improvements are usually seen in the first three or four months, stroke rehabilitation can last for years.

If someone begins to show signs of stroke, contact emergency services and call 9-1-1 immediately since blood flow must be restored as soon as possible to help avoid significant brain damage. If an ambulance takes the person to the hospital, paramedics can initiate stroke treatment as soon as the patient enters the ambulance, allowing for more prompt medical intervention and care.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

doctor visit	38

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Theodore H. Teruya, MD treated as a vascular surgeon in Pasadena, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

doctor visit	29
hospital care	48
inpatient care	48

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	55
Female	60

**Ethnicity**
Non-Hispanic White	58
Black	0
Hispanic	28
Asian	15
Other	0
Native American	0

**Age**
From 65 to 74	38
From 75 to 84	36
85 and over	13
Less than 65	28

Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD in 2013

Hypertension	75
High Cholesterol	63
Stroke	16
Ischemic Heart Disease	56
Depression	24
Chronic Kidney Disease	53
Asthma	0
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	44
Chronic Obstructive Pulmonary Disease	23
Diabetes	54
Dementia	16
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Theodore H. Teruya, MD treated as a vascular surgeon in Pasadena, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

hospital care	45
inpatient care	45

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	45
Female	37

**Ethnicity**
Non-Hispanic White	41
Black	0
Hispanic	14
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	28
From 75 to 84	22
85 and over	13
Less than 65	19

Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD in 2014

Hypertension	75
High Cholesterol	55
Stroke	16
Ischemic Heart Disease	52
Depression	24
Chronic Kidney Disease	49
Asthma	0
Osteoperosis	15
Atrial Fibrilation	21
Heart Failure	37
Chronic Obstructive Pulmonary Disease	18
Diabetes	39
Dementia	21
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	54
Female	52

**Ethnicity**
Non-Hispanic White	30
Black	0
Hispanic	0
Asian	44
Other	0
Native American	0

**Age**
From 65 to 74	42
From 75 to 84	28
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD in 2015

Hypertension	75
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	53
Depression	0
Chronic Kidney Disease	55
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	40
Chronic Obstructive Pulmonary Disease	21
Diabetes	58
Dementia	28
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Theodore H. Teruya, MD treated as a vascular surgeon in Pasadena, CA during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

hospital care	26
inpatient care	26

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	22
Female	35

**Ethnicity**
Non-Hispanic White	26
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	20
From 75 to 84	20
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD in 2016

Hypertension	75
High Cholesterol	70
Stroke	0
Ischemic Heart Disease	56
Depression	25
Chronic Kidney Disease	60
Asthma	26
Osteoperosis	0
Atrial Fibrilation	19
Heart Failure	40
Chronic Obstructive Pulmonary Disease	26
Diabetes	53
Dementia	26
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Theodore H. Teruya, MD treated as a vascular surgeon in Pasadena, CA during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

doctor visit	16
hospital care	11
inpatient care	11

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	27
Female	28

**Ethnicity**
Non-Hispanic White	25
Black	0
Hispanic	0
Asian	15
Other	0
Native American	0

**Age**
From 65 to 74	21
From 75 to 84	18
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD in 2017

Hypertension	75
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	60
Asthma	0
Osteoperosis	22
Atrial Fibrilation	0
Heart Failure	24
Chronic Obstructive Pulmonary Disease	0
Diabetes	56
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Theodore H. Teruya, MD treated as a vascular surgeon in Pasadena, CA during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

hospital care	14
inpatient care	14

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	32
Female	29

**Ethnicity**
Non-Hispanic White	23
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	18
From 75 to 84	19
85 and over	11
Less than 65	13

Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD in 2018

Hypertension	75
High Cholesterol	74
Stroke	23
Ischemic Heart Disease	62
Depression	30
Chronic Kidney Disease	59
Asthma	0
Osteoperosis	0
Atrial Fibrilation	30
Heart Failure	43
Chronic Obstructive Pulmonary Disease	25
Diabetes	56
Dementia	25
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

doctor visit	12

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	24
Female	21

**Ethnicity**
Non-Hispanic White	12
Black	0
Hispanic	0
Asian	16
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD in 2019

Hypertension	75
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	49
Depression	0
Chronic Kidney Disease	62
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	31
Chronic Obstructive Pulmonary Disease	0
Diabetes	53
Dementia	24
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

doctor visit	50

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	50
Female	41

**Ethnicity**
Non-Hispanic White	46
Black	0
Hispanic	27
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	41
From 75 to 84	0
85 and over	0
Less than 65	22

Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD in 2021

Hypertension	75
High Cholesterol	73
Stroke	13
Ischemic Heart Disease	59
Depression	36
Chronic Kidney Disease	73
Asthma	0
Osteoperosis	0
Atrial Fibrilation	20
Heart Failure	55
Chronic Obstructive Pulmonary Disease	23
Diabetes	62
Dementia	23
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Theodore H. Teruya, MD treated as a vascular surgeon in Pasadena, CA during 2022 were hospital care, inpatient care and vascular procedures.

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

doctor visit	130
hospital care	31
inpatient care	31
vascular procedures	11

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	90
Female	106

**Ethnicity**
Non-Hispanic White	92
Black	28
Hispanic	56
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	72
From 75 to 84	64
85 and over	23
Less than 65	37

Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	26
Ischemic Heart Disease	47
Depression	28
Chronic Kidney Disease	49
Asthma	9
Osteoperosis	14
Atrial Fibrilation	26
Heart Failure	43
Chronic Obstructive Pulmonary Disease	28
Diabetes	57
Dementia	13
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Theodore H. Teruya, MD treated as a vascular surgeon in Pasadena, CA during 2023 were hospital care and inpatient care.

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

doctor visit	119
hospital care	39
inpatient care	39

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	92
Female	90

**Ethnicity**
Non-Hispanic White	76
Black	24
Hispanic	60
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	55
85 and over	23
Less than 65	40

Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	26
Ischemic Heart Disease	51
Depression	31
Chronic Kidney Disease	55
Asthma	12
Osteoperosis	13
Atrial Fibrilation	31
Heart Failure	46
Chronic Obstructive Pulmonary Disease	30
Diabetes	62
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Theodore H. Teruya, MD for Medicare patients.

The highest averages for the top procedures that Dr. Theodore H. Teruya, MD treated as a vascular surgeon in Pasadena, CA were hospital care, inpatient care and vascular procedures.

doctor visit	56
hospital care	30
inpatient care	30
vascular procedures	11

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Theodore H. Teruya, MD.

**Gender**
Male	44
Female	45

**Ethnicity**
Black / African American	4
Asian / Pacific Islander	9
Non-Hispanic White	39
Hispanic	19
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	23
85 and over	7
Less than 65	14
65 to 74	33

Average of Total of Conditions of Medicare patients treated by Dr. Theodore H. Teruya, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Theodore H. Teruya, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	68
High Cholesterol	62
Stroke	10
Ischemic Heart Disease	47
Depression	20
Chronic Kidney Disease	52
Asthma	4
Osteoporosis	6
Heart Failure	36
Chronic Obstructive Pulmonary Disease	17
Diabetes	50
Atrial Fibrillation	15
Cancer	3
Dementia	17

Education & Training

Dr. Theodore H. Teruya, MD graduated from University of Hawaii at Manoa, John A. Burns School of Medicine. He completed residency at Loma Linda University Medical Center. He is certified by the American Board of Surgery and has a state license in Hawaii.

Medical School: University of Hawaii at Manoa, John A. Burns School of Medicine

Residency: Loma Linda University Medical Center

Board Certification: American Board of Surgery

Licensed In: Hawaii

Affiliations & Hospitals

Dr. Theodore H. Teruya, MD is associated with these hospitals and organizations:

Providence

Saddleback Medical Center

Cedars-Sinai

MemorialCare

Providence Mission Hospital - Laguna Beach

Providence Mission Hospital - Mission Viejo

Ratings & Reviews

Dr. Theodore H. Teruya, MD has an exceptional overall rating with an average of 4.89 out of 5 stars based on 74 ratings. We collect ratings and reviews of Dr. Theodore H. Teruya, MD from all over the web to help you find the right in Pasadena, CA.

4.89

Overall Rating

(74 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-08-20

Patient verified via Press Ganey

The doctor explains everything very Thoroughly and answered all questions in detail.

General Payments

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

**Payments by Company**
Endologix, Inc.	$101,264 AFX $65,390	OVATION $33,202	Pevar $272	$2,400
W. L. Gore & Associates, Inc.	$62,147 EXCLUDER AAA Endoprosthesis $34,972	Conformable TAG Thoracic Endoprosthesis $20,152	TAG Thoracic Endoprosthesis $2,365	C3 Delivery System $1,561	GORE TAG Thoracic Endoprosthesis $1,051	Other $2,047
Lombard Medical Technologies Inc.	$33,800 Aorfix Flexible Stent Graft System $33,800
LeMaitre Vascular, Inc.	$27,340 ANASTOCLIP $20,025	VALVULOTOM $2,199	PROCOL $1,324	XENOSURE $1,065	ALBOGRAFT $531	Other $2,196
Bard Peripheral Vascular, Inc.	$6,090 Vascular $5,937	Lutonix Drug Coated Balloon $37	Pristine $27	Crosser iQ $18	$70
Other	$28,855 Endurant $6,083	AFX $3,311	COOK $1,720	ENDURANT IIS $1,377	Argyle $1,344	Other $15,021

**Types of Payments**
Consulting Fee	$149,125
Honoraria	$57,500
Food and Beverage	$32,840
Travel and Lodging	$9,531
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$5,500
Other	$5,000

Biography

Dr. Theodore Teruya's specialties are general surgery and vascular surgery. His average rating from his patients is 5.0 stars (out of 5). Clinical interests for Dr. Teruya include thoracic outlet syndrome, portal hypertension, and iliac artery aneurysm. Dr. Teruya attended medical school at the University of Hawaii at Manoa, John A. Burns School of Medicine and Northwestern University, Feinberg School of Medicine. For his professional training, Dr. Teruya completed residency programs at JPS Health Network, Loma Linda University Medical Center, and a hospital affiliated with the University of Hawaii at Manoa. He is affiliated with Providence, Cedars-Sinai, and Saddleback Medical Center. Dr. Teruya has an open panel in Pasadena, CA according to Doctor.com.