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Dr. Yuichiro D. Nakai, MD

(Dr. Yuichiro David Nakai, M.D.)

(468 Ratings)

Specializes in: Adult Endocrinology

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

1162 Montgomery Drive Suite 3
Santa Rosa, CA 95405

(707) 890-4250

Dr. Yuichiro D. Nakai, MD is an endocrinologist in Santa Rosa, CA specializing in adult endocrinology. Dr. Yuichiro D. Nakai, MD is affiliated with Providence, Providence Medical Foundation and Santa Rosa Memorial Hospital.

Office Locations

Santa Rosa Memorial Hospital

1162 Montgomery Drive Suite 3
Santa Rosa, CA 95405

(707) 890-4250

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Some issues Dr. Yuichiro D. Nakai, 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1079

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Yuichiro D. Nakai, MD treated as an endocrinologist in Santa Rosa, CA during 2013 were preventive care and vaccines.

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1163
preventive care	12
vaccines	12

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Male	169
Female	297

**Ethnicity**
Non-Hispanic White	422
Black	0
Hispanic	17
Asian	14
Other	0
Native American	0

**Age**
From 65 to 74	241
From 75 to 84	115
85 and over	50
Less than 65	60

Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD in 2013

Hypertension	67
High Cholesterol	61
Stroke	3
Ischemic Heart Disease	40
Depression	21
Chronic Kidney Disease	28
Asthma	9
Osteoperosis	27
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	11
Diabetes	47
Dementia	4
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1083

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Male	166
Female	303

**Ethnicity**
Non-Hispanic White	428
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	247
From 75 to 84	113
85 and over	41
Less than 65	68

Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD in 2014

Hypertension	69
High Cholesterol	62
Stroke	6
Ischemic Heart Disease	36
Depression	21
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	25
Atrial Fibrilation	12
Heart Failure	20
Chronic Obstructive Pulmonary Disease	11
Diabetes	48
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Yuichiro D. Nakai, MD treated as an endocrinologist in Santa Rosa, CA during 2015 were preventive care and vaccines.

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1208
preventive care	16
vaccines	16

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Male	356
Female	648

**Ethnicity**
Non-Hispanic White	898
Black	0
Hispanic	44
Asian	26
Other	0
Native American	0

**Age**
From 65 to 74	512
From 75 to 84	276
85 and over	84
Less than 65	132

Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD in 2015

Hypertension	66
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	36
Asthma	9
Osteoperosis	25
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	10
Diabetes	50
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Yuichiro D. Nakai, MD treated as an endocrinologist in Santa Rosa, CA during 2016 were preventive care and vaccines.

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1446
preventive care	47
vaccines	47

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Male	186
Female	337

**Ethnicity**
Non-Hispanic White	466
Black	0
Hispanic	27
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	272
From 75 to 84	147
85 and over	37
Less than 65	67

Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD in 2016

Hypertension	66
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	30
Depression	19
Chronic Kidney Disease	47
Asthma	14
Osteoperosis	26
Atrial Fibrilation	9
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	50
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Yuichiro D. Nakai, MD treated as an endocrinologist in Santa Rosa, CA during 2017 were preventive care and vaccines.

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1656
preventive care	37
vaccines	37

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Male	228
Female	411

**Ethnicity**
Non-Hispanic White	563
Black	0
Hispanic	33
Asian	15
Other	17
Native American	0

**Age**
From 65 to 74	329
From 75 to 84	181
85 and over	45
Less than 65	84

Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD in 2017

Hypertension	66
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	49
Asthma	9
Osteoperosis	28
Atrial Fibrilation	12
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	51
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1854

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Male	254
Female	467

**Ethnicity**
Non-Hispanic White	620
Black	0
Hispanic	48
Asian	17
Other	22
Native American	0

**Age**
From 65 to 74	362
From 75 to 84	210
85 and over	49
Less than 65	100

Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD in 2018

Hypertension	64
High Cholesterol	63
Stroke	4
Ischemic Heart Disease	30
Depression	24
Chronic Kidney Disease	47
Asthma	8
Osteoperosis	26
Atrial Fibrilation	12
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	48
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1985

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Male	268
Female	458

**Ethnicity**
Non-Hispanic White	620
Black	0
Hispanic	53
Asian	17
Other	24
Native American	0

**Age**
From 65 to 74	376
From 75 to 84	210
85 and over	54
Less than 65	86

Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD in 2019

Hypertension	67
High Cholesterol	66
Stroke	3
Ischemic Heart Disease	32
Depression	25
Chronic Kidney Disease	49
Asthma	7
Osteoperosis	30
Atrial Fibrilation	11
Heart Failure	20
Chronic Obstructive Pulmonary Disease	10
Diabetes	51
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1515

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Male	254
Female	437

**Ethnicity**
Non-Hispanic White	601
Black	0
Hispanic	42
Asian	15
Other	21
Native American	0

**Age**
From 65 to 74	366
From 75 to 84	209
85 and over	48
Less than 65	68

Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD in 2020

Hypertension	63
High Cholesterol	68
Stroke	3
Ischemic Heart Disease	32
Depression	24
Chronic Kidney Disease	52
Asthma	7
Osteoperosis	27
Atrial Fibrilation	12
Heart Failure	20
Chronic Obstructive Pulmonary Disease	7
Diabetes	51
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1178

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Male	191
Female	381

**Ethnicity**
Non-Hispanic White	501
Black	0
Hispanic	33
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	308
From 75 to 84	180
85 and over	33
Less than 65	51

Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD in 2021

Hypertension	65
High Cholesterol	66
Stroke	4
Ischemic Heart Disease	31
Depression	25
Chronic Kidney Disease	47
Asthma	9
Osteoperosis	30
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	8
Diabetes	45
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

doctor visit	1226

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Male	213
Female	413

**Ethnicity**
Non-Hispanic White	538
Black	0
Hispanic	41
Asian	14
Other	22
Native American	0

**Age**
From 65 to 74	302
From 75 to 84	228
85 and over	43
Less than 65	53

Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD in 2022

Hypertension	70
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	26
Depression	21
Chronic Kidney Disease	29
Asthma	12
Osteoperosis	33
Atrial Fibrilation	19
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	43
Dementia	4
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Yuichiro D. Nakai, MD for Medicare patients.

The highest averages for the top procedures that Dr. Yuichiro D. Nakai, MD treated as an endocrinologist in Santa Rosa, CA were preventive care and vaccines.

doctor visit	1399
preventive care	28
vaccines	28

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Yuichiro D. Nakai, MD.

**Gender**
Female	377
Male	207

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	11
Non-Hispanic White	514
Native American / Alaskan Native	0
Hispanic	32
Other	11

**Age**
85 and over	44
75 to 84	169
Less than 65	69
65 to 74	301

Average of Total of Conditions of Medicare patients treated by Dr. Yuichiro D. Nakai, MD From 2012 - 2022

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

Hypertension	60
High Cholesterol	58
Stroke	3
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	37
Asthma	8
Osteoporosis	25
Heart Failure	16
Chronic Obstructive Pulmonary Disease	9
Diabetes	44
Atrial Fibrillation	10
Dementia	5
Cancer	10

Education & Training

He is certified by the American Board of Internal Medicine, Endocrinology Diabetes and Metabolism and has a state license in California.

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

Licensed In: California

Affiliations & Hospitals

Dr. Yuichiro D. Nakai, MD is associated with these hospitals and organizations:

Providence

Providence Medical Foundation

Santa Rosa Memorial Hospital

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. Yuichiro D. Nakai, MD appears to accept the following insurance providers: Aetna PPO, CIGNA PPO, CIGNA HMO, Western Health Advantage HMO, Blue Shield of California, MultiPlan PPO, Medicare Advantage, HealthSmart, Interplan PPO, TriWest, Anthem Blue Cross HMO, Anthem Blue Cross PPO, Health Net PPO, Health Net HMO, Anthem, Coventry PPO, United Healthcare PPO, United Healthcare HMO, US Family Health Plan, Aetna Medicare PPO, Partnership Health Plan of California and CoventryFirst Health PPO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Yuichiro D. Nakai, MD accepts the following insurance providers:

Aetna PPO

CIGNA PPO

CIGNA HMO

Western Health Advantage HMO

Blue Shield of California

MultiPlan PPO

Medicare Advantage

HealthSmart

Interplan PPO

TriWest

Anthem Blue Cross HMO

Anthem Blue Cross PPO

Health Net PPO

Health Net HMO

Anthem

Coventry PPO

United Healthcare PPO

United Healthcare HMO

US Family Health Plan

Aetna Medicare PPO

Partnership Health Plan of California

CoventryFirst Health PPO

Ratings & Reviews

Dr. Yuichiro D. Nakai, MD has an exceptional overall rating with an average of 4.93 out of 5 stars based on 468 ratings. We collect ratings and reviews of Dr. Yuichiro D. Nakai, MD from all over the web to help you find the right in Santa Rosa, CA.

4.93

Overall Rating

(468 Ratings)

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General Payments

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

**Payments by Company**
Tandem Diabetes Care, Inc.	$2,900 t:slim X2 insulin pump $2,650	t-slim insulin pump $250
Abbott Laboratories	$296 Diabetes Care $280	FreeStyle Libre $17
Novo Nordisk Inc	$137 Tresiba $48	NovoLog $37	$52
Boehringer Ingelheim Pharmaceuticals, Inc.	$132 JARDIANCE $108	Pradaxa $19	GLYXAMBI $5
Amgen Inc.	$119 Repatha $20	$99
Other	$268 INVOKANA $113	Omnipod $20	GENOTROPIN $16	TEPEZZA $13	Minimed 670G System $13	Other $94

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$2,900
Education	$658
Food and Beverage	$294

Biography

Dr. Yuichiro Nakai is a specialist in adult endocrinology. He has received a 5.0 out of 5 star rating by his patients. Dr. Nakai's areas of expertise include graves disease, type 2 diabetes, and metabolic syndrome. He is professionally affiliated with Providence Medical Foundation. He accepts several insurance carriers, including Anthem, Blue California, and HealthSmart. Dr. Nakai is not accepting new patients at this time according to Providence Medical Foundation. He graduated from St. Louis University School of Medicine.