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Dr. Takahiro Otsuka, MD

Accepting New Patients

(15 Ratings)

Specializes in: Adult Endocrinology

Professional interests include: insulin resistance, goiter , thyroid problems, and more.

17290 Jasmine Street Suite 102
Victorville, CA 92395

(760) 955-1838

Dr. Takahiro Otsuka, MD is an endocrinologist in Loma Linda, CA specializing in adult endocrinology. Dr. Takahiro Otsuka, MD is affiliated with Providence St. Mary Medical Center, Providence Medical Foundation, Loma Linda University Health, Providence, Astrana Health, Loma Linda University Faculty Medical Clinics, Alpha Care Medical Group, St. Mary Medical Center (Apple Valley), Providence Affiliated Physicians, St. Mary and TM AND HANA MEDICAL CORPORATION.

Office Locations

11370 Anderson Street Suite 3400
Loma Linda, CA 92354

open_in_new

TM AND HANA MEDICAL CORPORATION

17290 Jasmine Street Suite 102
Victorville, CA 92395

(760) 955-1838

(760) 955-1857

open_in_new

Some issues Dr. Takahiro Otsuka, MD 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.

Noteworthy Medicare Patient Procedures Performed by Dr. Takahiro Otsuka, 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. Takahiro Otsuka, 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. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

doctor visit	1326
hospital care	226
inpatient care	226

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

doctor visit	1332
hospital care	139
inpatient care	139

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	195
Female	372

**Ethnicity**
Non-Hispanic White	305
Black	74
Hispanic	140
Asian	34
Other	0
Native American	0

**Age**
From 65 to 74	244
From 75 to 84	150
85 and over	22
Less than 65	151

Conditions of Medicare patients treated by Dr. Takahiro Otsuka, MD in 2013

Hypertension	75
High Cholesterol	63
Stroke	8
Ischemic Heart Disease	47
Depression	18
Chronic Kidney Disease	46
Asthma	10
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	29
Chronic Obstructive Pulmonary Disease	14
Diabetes	75
Dementia	7
Cancer	5

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

doctor visit	1112
hospital care	120
inpatient care	120

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	181
Female	325

**Ethnicity**
Non-Hispanic White	268
Black	65
Hispanic	136
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	220
From 75 to 84	146
85 and over	25
Less than 65	115

Conditions of Medicare patients treated by Dr. Takahiro Otsuka, MD in 2014

Hypertension	75
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	46
Depression	20
Chronic Kidney Disease	51
Asthma	10
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	34
Chronic Obstructive Pulmonary Disease	15
Diabetes	75
Dementia	9
Cancer	7

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

doctor visit	1046
hospital care	158
inpatient care	158

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	324
Female	596

**Ethnicity**
Non-Hispanic White	518
Black	114
Hispanic	224
Asian	40
Other	0
Native American	0

**Age**
From 65 to 74	412
From 75 to 84	238
85 and over	48
Less than 65	222

Conditions of Medicare patients treated by Dr. Takahiro Otsuka, MD in 2015

Hypertension	75
High Cholesterol	65
Stroke	7
Ischemic Heart Disease	49
Depression	22
Chronic Kidney Disease	59
Asthma	17
Osteoperosis	9
Atrial Fibrilation	8
Heart Failure	35
Chronic Obstructive Pulmonary Disease	18
Diabetes	73
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA during 2016 were hospital care, inpatient care, lab tests and preventive care.

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

diabetes management	20
doctor visit	1027
hospital care	199
inpatient care	199
lab tests	20
preventive care	20

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	166
Female	299

**Ethnicity**
Non-Hispanic White	254
Black	57
Hispanic	122
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	108
85 and over	21
Less than 65	115

Conditions of Medicare patients treated by Dr. Takahiro Otsuka, MD in 2016

Hypertension	75
High Cholesterol	63
Stroke	9
Ischemic Heart Disease	50
Depression	23
Chronic Kidney Disease	74
Asthma	23
Osteoperosis	6
Atrial Fibrilation	9
Heart Failure	37
Chronic Obstructive Pulmonary Disease	18
Diabetes	75
Dementia	10
Cancer	6

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA during 2017 were hospital care, inpatient care, lab tests and preventive care.

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

diabetes management	17
doctor visit	997
hospital care	291
inpatient care	291
lab tests	17
preventive care	17

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	170
Female	308

**Ethnicity**
Non-Hispanic White	253
Black	58
Hispanic	124
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	215
From 75 to 84	118
85 and over	27
Less than 65	118

Conditions of Medicare patients treated by Dr. Takahiro Otsuka, MD in 2017

Hypertension	75
High Cholesterol	58
Stroke	8
Ischemic Heart Disease	49
Depression	26
Chronic Kidney Disease	73
Asthma	11
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	36
Chronic Obstructive Pulmonary Disease	22
Diabetes	75
Dementia	11
Cancer	7

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA during 2018 were hospital care, inpatient care, lab tests and preventive care.

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

diabetes management	23
doctor visit	680
hospital care	463
inpatient care	463
lab tests	23
preventive care	23

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	155
Female	257

**Ethnicity**
Non-Hispanic White	213
Black	57
Hispanic	99
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	179
From 75 to 84	113
85 and over	25
Less than 65	95

Conditions of Medicare patients treated by Dr. Takahiro Otsuka, MD in 2018

Hypertension	75
High Cholesterol	69
Stroke	11
Ischemic Heart Disease	50
Depression	24
Chronic Kidney Disease	74
Asthma	11
Osteoperosis	8
Atrial Fibrilation	8
Heart Failure	36
Chronic Obstructive Pulmonary Disease	23
Diabetes	75
Dementia	11
Cancer	6

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA during 2019 were hospital care, inpatient care, lab tests and preventive care.

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

diabetes management	26
doctor visit	811
hospital care	322
inpatient care	322
lab tests	26
preventive care	26

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	152
Female	273

**Ethnicity**
Non-Hispanic White	207
Black	62
Hispanic	114
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	182
From 75 to 84	116
85 and over	28
Less than 65	99

Conditions of Medicare patients treated by Dr. Takahiro Otsuka, MD in 2019

Hypertension	75
High Cholesterol	70
Stroke	8
Ischemic Heart Disease	48
Depression	28
Chronic Kidney Disease	72
Asthma	9
Osteoperosis	6
Atrial Fibrilation	9
Heart Failure	39
Chronic Obstructive Pulmonary Disease	20
Diabetes	75
Dementia	10
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

doctor visit	131

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	44
Female	74

**Ethnicity**
Non-Hispanic White	59
Black	11
Hispanic	33
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	43
From 75 to 84	36
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Takahiro Otsuka, MD in 2020

Hypertension	72
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	39
Depression	28
Chronic Kidney Disease	67
Asthma	11
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	32
Chronic Obstructive Pulmonary Disease	14
Diabetes	75
Dementia	12
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

doctor visit	553
hospital care	693
inpatient care	693

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	139
Female	205

**Ethnicity**
Non-Hispanic White	173
Black	54
Hispanic	84
Asian	19
Other	0
Native American	0

**Age**
From 65 to 74	134
From 75 to 84	97
85 and over	26
Less than 65	87

Conditions of Medicare patients treated by Dr. Takahiro Otsuka, MD in 2021

Hypertension	75
High Cholesterol	70
Stroke	10
Ischemic Heart Disease	42
Depression	27
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	6
Atrial Fibrilation	10
Heart Failure	35
Chronic Obstructive Pulmonary Disease	23
Diabetes	75
Dementia	15
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

doctor visit	506
hospital care	399
inpatient care	399

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	122
Female	217

**Ethnicity**
Non-Hispanic White	184
Black	40
Hispanic	84
Asian	19
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	95
85 and over	36
Less than 65	78

Conditions of Medicare patients treated by Dr. Takahiro Otsuka, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	17
Ischemic Heart Disease	38
Depression	27
Chronic Kidney Disease	50
Asthma	13
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	34
Chronic Obstructive Pulmonary Disease	23
Diabetes	75
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Takahiro Otsuka, MD for Medicare patients.

The highest averages for the top procedures that Dr. Takahiro Otsuka, MD treated as an endocrinologist in Loma Linda, CA were hospital care, inpatient care, lab tests and preventive care.

diabetes management	21
doctor visit	865
hospital care	301
inpatient care	301
lab tests	21
preventive care	21

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Takahiro Otsuka, MD.

**Gender**
Male	149
Female	266

**Ethnicity**
Black / African American	53
Asian / Pacific Islander	21
Non-Hispanic White	221
Native American / Alaskan Native	0
Hispanic	105
Other	0

**Age**
75 to 84	110
85 and over	23
Less than 65	98
65 to 74	180

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

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

Hypertension	67
High Cholesterol	60
Stroke	7
Ischemic Heart Disease	41
Depression	22
Chronic Kidney Disease	58
Asthma	11
Osteoporosis	6
Heart Failure	31
Chronic Obstructive Pulmonary Disease	17
Diabetes	68
Atrial Fibrillation	8
Dementia	9
Cancer	6

Education & Training

He completed residency at Beth Israel Deaconess Medical Center. He is certified by the American Board of Internal Medicine, Endocrinology Diabetes and Metabolism and has a state license in California.

Residency: Beth Israel Deaconess Medical Center

Board Certification: American Board of Internal Medicine, Endocrinology Diabetes and Metabolism

Licensed In: California

Affiliations & Hospitals

Dr. Takahiro Otsuka, MD is associated with these hospitals and organizations:

Providence St. Mary Medical Center

Providence Medical Foundation

Loma Linda University Health

Providence

Astrana Health

Loma Linda University Faculty Medical Clinics

Alpha Care Medical Group

St. Mary Medical Center (Apple Valley)

Providence Affiliated Physicians, St. Mary

TM AND HANA MEDICAL CORPORATION

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. Takahiro Otsuka, MD appears to accept the following insurance providers: Anthem Blue Cross HMO, Health Net HMO, Aetna HMO, CIGNA HMO, Medicare Advantage, Blue Shield of California and United Healthcare HMO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Takahiro Otsuka, MD accepts the following insurance providers:

Anthem Blue Cross HMO

Health Net HMO

Aetna HMO

CIGNA HMO

Medicare Advantage

Blue Shield of California

United Healthcare HMO

Ratings & Reviews

Dr. Takahiro Otsuka, MD has a high overall rating with an average of 4.47 out of 5 stars based on 15 ratings. We collect ratings and reviews of Dr. Takahiro Otsuka, MD from all over the web to help you find the right in Loma Linda, CA.

4.47

Overall Rating

(15 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Novo Nordisk Inc	$3,147 Victoza $828	Ozempic $641	Tresiba $627	RYBELSUS $339	Saxenda $85	Other $626
SANOFI-AVENTIS U.S. LLC	$1,724 TOUJEO $741	PRALUENT $279	LANTUS $246	SOLIQUA 100/33 $167	SOLIQUA $109	Other $181
Abbott Laboratories	$1,329 Freestyle Libre 2 $503	FreeStyle Libre $310	FreeStyle Libre blood glucose Flash Monitoring System $147	FreeStyle Freedom Lite system $145	FREESTYLE LIBRE 3 $113	Other $111
MannKind Corporation	$1,059 AFREZZA $1,059
AstraZeneca Pharmaceuticals LP	$1,013 FARXIGA $673	BYDUREON PEN $119	BYDUREON $115	BYDUREON WEEKLY $54	ONGLYZA $11	Other $41
Other	$6,975 Korlym $515	DEXCOM G6 TRANSMITTER $513	JARDIANCE $499	Kerendia $462	JANUMET XR $399	Other $4,587

**Types of Payments**
Food and Beverage	$14,698
Gift	$297
Education	$212
Debt forgiveness	$38

Biography

Dr. Takahiro Otsuka specializes in adult endocrinology and practices in Loma Linda, CA and Victorville, CA. He trained at Beth Israel Deaconess Medical Center for residency. Areas of expertise for Dr. Otsuka include type 2 diabetes, graves disease, and metabolic syndrome. Patient ratings for Dr. Otsuka average 4.5 stars (out of 5). He is an in-network provider for several insurance carriers, including United Healthcare HMO, Anthem, and Blue California. He speaks Japanese. Dr. Otsuka is affiliated with Astrana Health, Loma Linda University Health, and Providence St. Mary Medical Center. He welcomes new patients at his office inVictorville, CA as reported by Providence Medical Foundation.