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Home > WA Providers > Dermatologists

Dr. Brian H. Kumasaka, MD

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Specializes in: Dermatology (Skin Disorders)

660 Sw 39th Street Suite 150
Renton, WA 98057

(425) 690-3483

Dr. Brian H. Kumasaka, MD is a dermatologist in Renton, WA specializing in dermatology (skin disorders). Dr. Brian H. Kumasaka, MD is affiliated with UW Medicine Valley Medical Center.

Office Locations

UW Medicine Valley Medical Center

660 Sw 39th Street Suite 150
Renton, WA 98057

(425) 690-3483

(425) 690-9083

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Noteworthy Medicare Patient Procedures Performed by Dr. Brian H. Kumasaka, MD in 2023

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

Top 25%

By Volume:

removal of skin lesion

In 2012, Dr. Brian H. Kumasaka, MD performed more removal of skin lesion (growth or mark) procedures for Medicare patients than 75% of providers in related specialties within Washington.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2012 were removal of lesion (e.g. growth), skin procedures and diagnostic procedures.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

diagnostic procedures	112
doctor visit	950
removal of lesion (e.g. growth)	576
skin procedures	576

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2013 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and blood draw.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

blood draw	16
diagnostic procedures	124
doctor visit	1056
injections	13
removal of lesion (e.g. growth)	580
skin procedures	580

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Male	401
Female	346

**Ethnicity**
Non-Hispanic White	683
Black	0
Hispanic	0
Asian	32
Other	13
Native American	0

**Age**
From 65 to 74	320
From 75 to 84	266
85 and over	116
Less than 65	45

Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD in 2013

Hypertension	57
High Cholesterol	51
Stroke	2
Ischemic Heart Disease	23
Depression	13
Chronic Kidney Disease	16
Asthma	4
Osteoperosis	4
Atrial Fibrilation	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	25
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2014 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and blood draw.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

blood draw	14
diagnostic procedures	134
doctor visit	1105
removal of lesion (e.g. growth)	643
skin procedures	643

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Male	430
Female	362

**Ethnicity**
Non-Hispanic White	722
Black	0
Hispanic	0
Asian	38
Other	21
Native American	0

**Age**
From 65 to 74	338
From 75 to 84	292
85 and over	133
Less than 65	29

Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD in 2014

Hypertension	57
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	24
Depression	11
Chronic Kidney Disease	17
Asthma	4
Osteoperosis	4
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	24
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2015 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and blood draw.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

blood draw	14
diagnostic procedures	162
doctor visit	1162
removal of lesion (e.g. growth)	659
skin procedures	659

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Male	974
Female	812

**Ethnicity**
Non-Hispanic White	1608
Black	36
Hispanic	0
Asian	66
Other	52
Native American	0

**Age**
From 65 to 74	854
From 75 to 84	598
85 and over	280
Less than 65	54

Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD in 2015

Hypertension	58
High Cholesterol	48
Stroke	3
Ischemic Heart Disease	26
Depression	14
Chronic Kidney Disease	20
Asthma	7
Osteoperosis	5
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	25
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2016 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and lab tests.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

blood draw	30
diagnostic procedures	129
doctor visit	1174
lab tests	43
removal of lesion (e.g. growth)	662
skin procedures	662

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Male	480
Female	383

**Ethnicity**
Non-Hispanic White	779
Black	11
Hispanic	0
Asian	39
Other	22
Native American	0

**Age**
From 65 to 74	414
From 75 to 84	305
85 and over	122
Less than 65	22

Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD in 2016

Hypertension	58
High Cholesterol	44
Stroke	3
Ischemic Heart Disease	25
Depression	12
Chronic Kidney Disease	23
Asthma	10
Osteoperosis	4
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	24
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2017 were removal of lesion (e.g. growth), skin procedures and diagnostic procedures.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

diagnostic procedures	126
doctor visit	1184
removal of lesion (e.g. growth)	658
skin procedures	658

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Male	514
Female	422

**Ethnicity**
Non-Hispanic White	845
Black	12
Hispanic	0
Asian	37
Other	29
Native American	0

**Age**
From 65 to 74	425
From 75 to 84	349
85 and over	131
Less than 65	31

Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD in 2017

Hypertension	59
High Cholesterol	38
Stroke	2
Ischemic Heart Disease	24
Depression	13
Chronic Kidney Disease	25
Asthma	5
Osteoperosis	6
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	25
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2018 were removal of lesion (e.g. growth), skin procedures and diagnostic procedures.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

diagnostic procedures	122
doctor visit	1346
removal of lesion (e.g. growth)	776
skin procedures	776

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Male	557
Female	471

**Ethnicity**
Non-Hispanic White	907
Black	19
Hispanic	0
Asian	44
Other	43
Native American	0

**Age**
From 65 to 74	449
From 75 to 84	409
85 and over	135
Less than 65	35

Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD in 2018

Hypertension	60
High Cholesterol	47
Stroke	3
Ischemic Heart Disease	22
Depression	16
Chronic Kidney Disease	26
Asthma	5
Osteoperosis	5
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	25
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2019 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

doctor visit	1266
removal of lesion (e.g. growth)	714
skin procedures	714

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Male	501
Female	451

**Ethnicity**
Non-Hispanic White	851
Black	0
Hispanic	12
Asian	51
Other	26
Native American	0

**Age**
From 65 to 74	387
From 75 to 84	399
85 and over	140
Less than 65	26

Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD in 2019

Hypertension	57
High Cholesterol	48
Stroke	3
Ischemic Heart Disease	22
Depression	15
Chronic Kidney Disease	26
Asthma	5
Osteoperosis	6
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	6
Diabetes	22
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2020 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

doctor visit	1217
removal of lesion (e.g. growth)	668
skin procedures	668

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Male	520
Female	441

**Ethnicity**
Non-Hispanic White	877
Black	0
Hispanic	0
Asian	31
Other	35
Native American	0

**Age**
From 65 to 74	418
From 75 to 84	392
85 and over	138
Less than 65	13

Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD in 2020

Hypertension	55
High Cholesterol	46
Stroke	3
Ischemic Heart Disease	23
Depression	14
Chronic Kidney Disease	24
Asthma	5
Osteoperosis	6
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	6
Diabetes	20
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2021 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

doctor visit	1308
removal of lesion (e.g. growth)	713
skin procedures	713

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Male	538
Female	491

**Ethnicity**
Non-Hispanic White	932
Black	0
Hispanic	0
Asian	39
Other	42
Native American	0

**Age**
From 65 to 74	423
From 75 to 84	411
85 and over	173
Less than 65	22

Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD in 2021

Hypertension	53
High Cholesterol	46
Stroke	2
Ischemic Heart Disease	23
Depression	15
Chronic Kidney Disease	26
Asthma	5
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	4
Diabetes	22
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA during 2022 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

doctor visit	1218
removal of lesion (e.g. growth)	708
skin procedures	708

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Male	525
Female	436

**Ethnicity**
Non-Hispanic White	871
Black	0
Hispanic	0
Asian	31
Other	38
Native American	0

**Age**
From 65 to 74	384
From 75 to 84	405
85 and over	152
Less than 65	20

Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD in 2022

Hypertension	67
High Cholesterol	70
Stroke	5
Ischemic Heart Disease	16
Depression	11
Chronic Kidney Disease	18
Asthma	7
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	22
Dementia	4
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Brian H. Kumasaka, MD for Medicare patients.

The highest averages for the top procedures that Dr. Brian H. Kumasaka, MD treated as a dermatologist in Renton, WA were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and lab tests.

blood draw	18
diagnostic procedures	129
doctor visit	1180
injections	13
lab tests	43
removal of lesion (e.g. growth)	668
skin procedures	668

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Brian H. Kumasaka, MD.

**Gender**
Female	419
Male	494

**Ethnicity**
Black / African American	7
Asian / Pacific Islander	37
Non-Hispanic White	825
Native American / Alaskan Native	0
Hispanic	1
Other	29

**Age**
85 and over	138
75 to 84	347
Less than 65	27
65 to 74	401

Average of Total of Conditions of Medicare patients treated by Dr. Brian H. Kumasaka, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Brian H. Kumasaka, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	52
High Cholesterol	44
Stroke	2
Ischemic Heart Disease	20
Depression	12
Chronic Kidney Disease	20
Asthma	5
Osteoporosis	5
Heart Failure	9
Chronic Obstructive Pulmonary Disease	6
Diabetes	21
Atrial Fibrillation	9
Dementia	5
Cancer	9

Education & Training

He has a state license in Washington.

Licensed In: Washington

Affiliations & Hospitals

Dr. Brian H. Kumasaka, MD is associated with these hospitals and organizations:

UW Medicine Valley Medical Center

Ratings & Reviews

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General Payments

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

**Payments by Company**
Ranbaxy Inc.	$3,258 $3,258
Galderma Laboratories, L.P.	$1,405 CLOBEX SPRAY $1,344	EPIDUO $30	EPIDUO FORTE $14	ORACEA $9	MIRVASO GEL $9
Novartis Pharmaceuticals Corporation	$223 COSENTYX $223
AbbVie Inc.	$152 Skyrizi $152
Celgene Corporation	$130 Otezla $130
Other	$540 STELARA $97	Humira $92	CIBINQO $64	ADBRY $44	JUBLIA $29	Other $215

**Types of Payments**
Food and Beverage	$2,285
Honoraria	$2,000
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$1,200
Education	$123
Consulting Fee	$100

Biography

Dr. Brian Kumasaka specializes in dermatology (skin disorders). Dr. Kumasaka is affiliated with UW Medicine Valley Medical Center. He studied medicine at the University of Washington School of Medicine.