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Home > CA Providers > Internists & Internal Medicine Doctors

Dr. Thomas I. Kanomata, MD

(32 Ratings)

Specializes in: Internal Medicine (Adult Medicine)

Loma Linda University School of Medicine

280 Sierra College Drive Suite 120
Grass Valley, CA 95945

(530) 477-4480

Dr. Thomas I. Kanomata, MD is an internist in Grass Valley, CA specializing in internal medicine (adult medicine). He graduated from Loma Linda University School of Medicine. Dr. Thomas I. Kanomata, MD is affiliated with Dignity Health, Hill Physicians and DHMF - California Dignity Health Medical Group - Sierra Nevada.

Office Locations

280 Sierra College Drive Suite 120
Grass Valley, CA 95945

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In The News

“Already here are Frances Canet, MD, a cardiologist, Ana Lizama, MD, a neurologist, and Thomas Kanomata, MD, an internal medicine specialist who took over the practice of Dr. George Rice earlier...”—"Community welcomes new physicians", The Union, August 2014

Noteworthy Medicare Patient Procedures Performed by Dr. Thomas I. Kanomata, MD in 2023

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

Top 10%

By Volume:

rapid flu test

In 2023, Dr. Thomas I. Kanomata, MD performed more rapid flu test procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

lab tests

urinalysis

In 2012, Dr. Thomas I. Kanomata, MD performed more lab tests, and urinalysis 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. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2012 were lab tests, blood draw, inpatient care and hospital care.

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

abdominal imaging	16
aspiration	12
blood draw	690
cardiac procedures	40
diabetes management	127
doctor visit	1643
hospital care	479
injections	12
inpatient care	479
lab tests	2561
musculoskeletal imaging	67
nuclear scan	11
preventive care	441
stress testing	23
thoracic (chest) imaging	114
thyroid function tests	276
ultrasound (sonogram)	33
vaccines	57
X-rays	181

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2013 were lab tests, blood draw, preventive care and hospital care.

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

blood draw	777
cardiac procedures	38
diabetes management	158
doctor visit	1718
hip imaging	11
hospital care	481
inpatient care	446
lab tests	2813
musculoskeletal imaging	60
outpatient care	35
preventive care	550
stress testing	22
thoracic (chest) imaging	104
thyroid function tests	262
ultrasound (sonogram)	33
vaccines	52
vascular procedures	17
X-rays	164

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	214
Female	334

**Ethnicity**
Non-Hispanic White	526
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	150
85 and over	56
Less than 65	135

Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD in 2013

Hypertension	75
High Cholesterol	60
Stroke	8
Ischemic Heart Disease	45
Depression	28
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	24
Chronic Obstructive Pulmonary Disease	28
Diabetes	36
Dementia	14
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2014 were hospital care, inpatient care, preventive care and vaccines.

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

doctor visit	783
hospital care	744
inpatient care	678
outpatient care	66
preventive care	113
vaccines	113

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	350
Female	478

**Ethnicity**
Non-Hispanic White	771
Black	36
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	336
From 75 to 84	245
85 and over	130
Less than 65	117

Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD in 2014

Hypertension	74
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	34
Depression	25
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	25
Chronic Obstructive Pulmonary Disease	23
Diabetes	29
Dementia	17
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2015 were preventive care, vaccines, removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

aspiration	30
doctor visit	2619
injections	30
lab tests	29
preventive care	467
removal of lesion (e.g. growth)	31
skin procedures	31
vaccines	467

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	666
Female	1016

**Ethnicity**
Non-Hispanic White	1586
Black	0
Hispanic	34
Asian	0
Other	36
Native American	0

**Age**
From 65 to 74	834
From 75 to 84	476
85 and over	254
Less than 65	118

Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD in 2015

Hypertension	59
High Cholesterol	68
Stroke	5
Ischemic Heart Disease	20
Depression	17
Chronic Kidney Disease	13
Asthma	8
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	14
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2016 were preventive care, vaccines, lab tests and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

aspiration	27
doctor visit	2750
injections	27
lab tests	70
preventive care	385
removal of lesion (e.g. growth)	37
skin procedures	37
vaccines	385

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	351
Female	501

**Ethnicity**
Non-Hispanic White	802
Black	0
Hispanic	18
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	433
From 75 to 84	254
85 and over	118
Less than 65	47

Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD in 2016

Hypertension	57
High Cholesterol	66
Stroke	4
Ischemic Heart Disease	20
Depression	19
Chronic Kidney Disease	17
Asthma	12
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	14
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2017 were preventive care, vaccines, lab tests and aspiration.

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

aspiration	25
doctor visit	2720
injections	25
lab tests	97
preventive care	343
removal of lesion (e.g. growth)	15
skin procedures	15
vaccines	343

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	336
Female	495

**Ethnicity**
Non-Hispanic White	780
Black	0
Hispanic	21
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	404
From 75 to 84	273
85 and over	108
Less than 65	46

Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD in 2017

Hypertension	60
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	20
Depression	19
Chronic Kidney Disease	20
Asthma	6
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	13
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2018 were preventive care, vaccines, lab tests and aspiration.

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

aspiration	51
doctor visit	2753
injections	51
lab tests	150
preventive care	276
removal of lesion (e.g. growth)	17
skin procedures	17
vaccines	276

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	348
Female	536

**Ethnicity**
Non-Hispanic White	825
Black	0
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	417
From 75 to 84	327
85 and over	106
Less than 65	34

Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD in 2018

Hypertension	58
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	21
Depression	20
Chronic Kidney Disease	18
Asthma	5
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	13
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2019 were preventive care, vaccines, aspiration and injections.

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

aspiration	64
doctor visit	2817
injections	64
lab tests	59
preventive care	297
removal of lesion (e.g. growth)	23
skin procedures	23
vaccines	297

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	337
Female	519

**Ethnicity**
Non-Hispanic White	806
Black	0
Hispanic	0
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	406
From 75 to 84	309
85 and over	105
Less than 65	36

Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD in 2019

Hypertension	57
High Cholesterol	65
Stroke	3
Ischemic Heart Disease	20
Depression	22
Chronic Kidney Disease	18
Asthma	6
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	14
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2020 were preventive care, vaccines, aspiration and injections.

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

aspiration	50
doctor visit	2143
ear procedures	13
injections	50
lab tests	15
preventive care	205
vaccines	205

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	366
Female	509

**Ethnicity**
Non-Hispanic White	815
Black	0
Hispanic	29
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	426
From 75 to 84	307
85 and over	114
Less than 65	28

Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD in 2020

Hypertension	56
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	20
Depression	18
Chronic Kidney Disease	18
Asthma	6
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	13
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2021 were preventive care, vaccines, aspiration and injections.

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

aspiration	46
doctor visit	2697
ear procedures	16
injections	46
lab tests	25
preventive care	75
removal of lesion (e.g. growth)	21
skin procedures	21
vaccines	75

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	395
Female	482

**Ethnicity**
Non-Hispanic White	819
Black	0
Hispanic	29
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	383
From 75 to 84	348
85 and over	114
Less than 65	32

Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD in 2021

Hypertension	57
High Cholesterol	68
Stroke	4
Ischemic Heart Disease	22
Depression	19
Chronic Kidney Disease	17
Asthma	6
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	7
Diabetes	13
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA during 2022 were lab tests, preventive care, vaccines and aspiration.

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

aspiration	47
diabetes management	27
doctor visit	2756
ear procedures	14
injections	47
lab tests	121
preventive care	82
vaccines	55

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	353
Female	505

**Ethnicity**
Non-Hispanic White	795
Black	0
Hispanic	30
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	382
From 75 to 84	338
85 and over	114
Less than 65	24

Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD in 2022

Hypertension	64
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	14
Depression	19
Chronic Kidney Disease	13
Asthma	10
Osteoperosis	13
Atrial Fibrilation	17
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	14
Dementia	4
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Thomas I. Kanomata, MD for Medicare patients.

The highest averages for the top procedures that Dr. Thomas I. Kanomata, MD treated as an internist in Grass Valley, CA were blood draw, lab tests, hospital care and inpatient care.

abdominal imaging	16
aspiration	39
blood draw	733
cardiac procedures	39
diabetes management	104
doctor visit	2309
ear procedures	14
hip imaging	11
hospital care	568
injections	39
inpatient care	534
lab tests	594
musculoskeletal imaging	63
nuclear scan	11
outpatient care	50
preventive care	294
removal of lesion (e.g. growth)	24
skin procedures	24
stress testing	22
thoracic (chest) imaging	109
thyroid function tests	269
ultrasound (sonogram)	33
vaccines	211
vascular procedures	17
X-rays	172

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Thomas I. Kanomata, MD.

**Gender**
Male	337
Female	488

**Ethnicity**
Black / African American	3
Asian / Pacific Islander	0
Non-Hispanic White	775
Native American / Alaskan Native	0
Hispanic	17
Other	8

**Age**
75 to 84	275
85 and over	110
Less than 65	56
65 to 74	384

Average of Total of Conditions of Medicare patients treated by Dr. Thomas I. Kanomata, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Thomas I. Kanomata, MD treated were high cholesterol, hypertension, ischemic heart disease and depression.

Hypertension	56
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	21
Depression	18
Chronic Kidney Disease	17
Asthma	6
Osteoporosis	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	15
Atrial Fibrillation	11
Dementia	7
Cancer	8

Education & Training

Dr. Thomas I. Kanomata, MD graduated from Loma Linda University School of Medicine. He completed residency at Kettering Medical Center. He is certified by the Internal Medicine and has a state license in Georgia.

Medical School: Loma Linda University School of Medicine

Residency: Kettering Medical Center

Board Certification: Internal Medicine

Licensed In: Georgia

Affiliations & Hospitals

Dr. Thomas I. Kanomata, MD is associated with these hospitals and organizations:

Dignity Health

Hill Physicians

DHMF - California Dignity Health Medical Group - Sierra Nevada

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. Thomas I. Kanomata, MD appears to accept the following insurance providers: TRICARE, Cigna, Private Healthcare Systems (PHCS), Aetna, Blue Shield of California, Centene, Anthem, UnitedHealthcare, First Health, United Healthcare, Health Net, HealthSmart and Hill Physicians Care Solutions.

Insurance Accepted by Provider includes:

According to our sources, Dr. Thomas I. Kanomata, MD accepts the following insurance providers:

TRICARE

Cigna

Private Healthcare Systems (PHCS)

Aetna

Blue Shield of California

Centene

Anthem

UnitedHealthcare

First Health

United Healthcare

Health Net

HealthSmart

Hill Physicians Care Solutions

Ratings & Reviews

Dr. Thomas I. Kanomata, MD has an exceptional overall rating with an average of 4.96 out of 5 stars based on 32 ratings. We collect ratings and reviews of Dr. Thomas I. Kanomata, MD from all over the web to help you find the right in Grass Valley, CA.

4.96

Overall Rating

(32 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2024-06-07

Patient verified via Press Ganey

We had fun with the mental health questions. I passed, and then my partner gave the doc a tricky question that he had difficulty answering. We had a good laugh.

Overall Rating: 5.0 2023-07-25

Patient verified via Press Ganey

I have recommended Dr. Kanomata to many people because I think he's that good.

Overall Rating: 5.0 2024-11-15

Patient verified via Press Ganey

Dr Kanomata is thorough, explains things well, friendly, and compassionate.

Overall Rating: 5.0 2023-12-06

Patient verified via Press Ganey

Dr. Is exceptionally kind, compassionate, and Is a. Great diagnostition.

Overall Rating: 5.0 2024-12-07

Patient verified via Press Ganey

Dr. Kanomata was excellent. A truly caring knowledgeable professional.

Overall Rating: 5.0 2024-08-22

Patient verified via Press Ganey

Appreciate the friendly and professional support I received.

Overall Rating: 5.0 2023-10-13

Patient verified via Press Ganey

What I like about Dr. Kanomata is he listens to me

Overall Rating: 5.0 2024-08-25

Patient verified via Press Ganey

Never had a bad experience with Dr. Kanomata.

Overall Rating: 5.0 2024-05-10

Patient verified via Press Ganey

I love Dr K. Don't ever let him leave.

Overall Rating: 5.0 2025-05-13

Patient verified via Press Ganey

He is an excellent physician

To see all 32 reviews for Dr. Thomas I. Kanomata, MD, view their full profile.

General Payments

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

**Payments by Company**
Sunovion Pharmaceuticals Inc.	$24 Brovana $24
Valeritas, Inc.	$15 V-GO $15
Janssen Pharmaceuticals, Inc	$12 INVOKANA $12

**Types of Payments**
Food and Beverage	$52

Biography

Dr. Thomas Kanomata graduated from Loma Linda University School of Medicine and then he performed his residency at Kettering Medical Center. He has received a 5.0 out of 5 star rating by his patients. He usually honors Anthem, UnitedHealthcare, and Blue California, in addition to other insurance carriers. Dr. Kanomata speaks Japanese. His professional affiliations include Dignity Health Medical Foundation, Hill Physicians, and Sierra Nevada Memorial Hospital. Hill Physicians reports that Dr. Kanomata is closed to new patients at this time.