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Dr. Terry Spark Corwin, MD

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Specializes in: Urology (Urinary Tract Disease)

8614 E Mill Plain Boulevard Suite 201
Vancouver, WA 98664

(360) 729-8580

Dr. Terry Spark Corwin, MD is an urologist in Everett, WA specializing in urology (urinary tract disease).

Office Locations

4310 Colby Avenue Suite 203
Everett, WA 98203

(425) 252-8102

(425) 339-0835

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8614 E Mill Plain Boulevard Suite 201
Vancouver, WA 98664

(360) 729-8580

(360) 729-8599

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In The News

“Dr. T. Spark Corwin, from Western Washington Medical Group's urology department, has been recognized as a Patients' Choice physician.”—"Biz bits | HeraldNet.com", Herald Net, October 2012

Noteworthy Medicare Patient Procedures Performed by Dr. Terry Spark Corwin, MD in 2023

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

Top 5%

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2023, Dr. Terry Spark Corwin, MD had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Washington. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 10%

By Volume:

suprapubic catheter replacement

In 2023, Dr. Terry Spark Corwin, MD performed more suprapubic catheter replacement procedures for Medicare patients than 90% of providers in related specialties within Washington.

Top 25%

By Volume:

biological response modifier therapy

catheterization

intravesical chemotherapy

urologic procedures

In 2012, Dr. Terry Spark Corwin, MD performed more biological response modifier (BRM) therapy, catheterization, intravesical chemotherapy, and urologic procedures 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. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2012 were lab tests, urologic procedures, minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

ablation	16
catheterization	45
diagnostic procedures	17
doctor visit	536
lab tests	545
minimally invasive procedures	133
minor procedures	17
urologic procedures	221

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2013 were lab tests, urologic procedures, minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

ablation	14
catheterization	57
doctor visit	527
lab tests	472
minimally invasive procedures	106
urologic procedures	197

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	271
Female	125

**Ethnicity**
Non-Hispanic White	376
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	169
From 75 to 84	134
85 and over	57
Less than 65	36

Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD in 2013

Hypertension	61
High Cholesterol	55
Stroke	4
Ischemic Heart Disease	31
Depression	19
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	5
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	10
Diabetes	30
Dementia	9
Cancer	22

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2014 were lab tests, urologic procedures, minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

catheterization	45
doctor visit	557
lab tests	540
minimally invasive procedures	112
stent placement (stenting)	18
urologic procedures	206

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	291
Female	117

**Ethnicity**
Non-Hispanic White	381
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	163
From 75 to 84	131
85 and over	73
Less than 65	41

Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD in 2014

Hypertension	61
High Cholesterol	53
Stroke	6
Ischemic Heart Disease	32
Depression	17
Chronic Kidney Disease	31
Asthma	7
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	9
Cancer	21

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2015 were lab tests, urologic procedures, minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

catheterization	53
doctor visit	536
lab tests	436
laser treatment	13
lithotripsy (stone fragmentation)	13
minimally invasive procedures	120
stent placement (stenting)	13
urologic procedures	243

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	588
Female	228

**Ethnicity**
Non-Hispanic White	752
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	378
From 75 to 84	272
85 and over	92
Less than 65	74

Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD in 2015

Hypertension	60
High Cholesterol	53
Stroke	6
Ischemic Heart Disease	29
Depression	19
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	4
Atrial Fibrilation	15
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	28
Dementia	11
Cancer	20

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2016 were lab tests, urologic procedures, minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

catheterization	62
diagnostic procedures	11
doctor visit	537
hormone therapy	42
lab tests	407
laser treatment	11
lithotripsy (stone fragmentation)	11
minimally invasive procedures	112
minor procedures	11
stent placement (stenting)	11
urologic procedures	241

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	284
Female	94

**Ethnicity**
Non-Hispanic White	362
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	191
From 75 to 84	115
85 and over	47
Less than 65	25

Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD in 2016

Hypertension	61
High Cholesterol	53
Stroke	6
Ischemic Heart Disease	31
Depression	16
Chronic Kidney Disease	34
Asthma	15
Osteoperosis	0
Atrial Fibrilation	16
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	31
Dementia	11
Cancer	24

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2017 were lab tests, urologic procedures, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

abdominal imaging	13
biological response modifier (BRM) therapy	59
catheterization	41
chemotherapy	59
CT scan	13
diagnostic procedures	11
doctor visit	600
foreign body removal	12
hormone therapy	26
lab tests	425
laser treatment	15
lithotripsy (stone fragmentation)	15
minimally invasive procedures	150
minor procedures	11
pelvic imaging	13
stent placement (stenting)	33
urologic procedures	331

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	303
Female	116

**Ethnicity**
Non-Hispanic White	398
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	187
From 75 to 84	157
85 and over	44
Less than 65	31

Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD in 2017

Hypertension	62
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	29
Depression	18
Chronic Kidney Disease	35
Asthma	5
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	9
Cancer	21

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2018 were urologic procedures, lab tests, minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

catheterization	60
doctor visit	591
hormone therapy	28
lab tests	246
laser treatment	12
lithotripsy (stone fragmentation)	12
minimally invasive procedures	117
stent placement (stenting)	26
urologic procedures	328

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	331
Female	100

**Ethnicity**
Non-Hispanic White	397
Black	0
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	171
From 75 to 84	176
85 and over	48
Less than 65	36

Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD in 2018

Hypertension	64
High Cholesterol	59
Stroke	5
Ischemic Heart Disease	33
Depression	19
Chronic Kidney Disease	39
Asthma	6
Osteoperosis	5
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	10
Cancer	22

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2019 were urologic procedures, minimally invasive procedures, lab tests and catheterization.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

ablation	12
catheterization	28
doctor visit	620
hormone therapy	27
lab tests	144
laser treatment	14
lithotripsy (stone fragmentation)	14
minimally invasive procedures	176
stent placement (stenting)	14
urologic procedures	419

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	316
Female	142

**Ethnicity**
Non-Hispanic White	421
Black	0
Hispanic	0
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	191
From 75 to 84	180
85 and over	56
Less than 65	31

Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD in 2019

Hypertension	64
High Cholesterol	58
Stroke	3
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	4
Atrial Fibrilation	17
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	9
Cancer	24

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2020 were urologic procedures, minimally invasive procedures and lab tests.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

doctor visit	321
lab tests	20
minimally invasive procedures	83
urologic procedures	150

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	226
Female	92

**Ethnicity**
Non-Hispanic White	180
Black	68
Hispanic	51
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	84
85 and over	25
Less than 65	58

Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD in 2020

Hypertension	75
High Cholesterol	69
Stroke	5
Ischemic Heart Disease	40
Depression	30
Chronic Kidney Disease	51
Asthma	8
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	22
Chronic Obstructive Pulmonary Disease	12
Diabetes	40
Dementia	14
Cancer	25

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2021 were urologic procedures, minimally invasive procedures, lab tests and catheterization.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

ablation	14
catheterization	35
doctor visit	473
hospital care	29
inpatient care	29
lab tests	38
laser treatment	20
lithotripsy (stone fragmentation)	20
minimally invasive procedures	129
stent placement (stenting)	20
urologic procedures	288

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	318
Female	118

**Ethnicity**
Non-Hispanic White	280
Black	79
Hispanic	50
Asian	13
Other	0
Native American	0

**Age**
From 65 to 74	219
From 75 to 84	128
85 and over	25
Less than 65	64

Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD in 2021

Hypertension	75
High Cholesterol	69
Stroke	3
Ischemic Heart Disease	42
Depression	26
Chronic Kidney Disease	48
Asthma	8
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	37
Dementia	13
Cancer	22

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA during 2022 were urologic procedures, minimally invasive procedures, lab tests and suprapubic catheter replacement.

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

ablation	26
catheterization	60
doctor visit	445
hormone therapy	19
lab tests	78
laser treatment	17
lithotripsy (stone fragmentation)	17
minimally invasive procedures	131
stent placement (stenting)	17
suprapubic catheter replacement	69
urologic procedures	312

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	319
Female	102

**Ethnicity**
Non-Hispanic White	327
Black	31
Hispanic	34
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	196
From 75 to 84	152
85 and over	42
Less than 65	31

Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	36
Depression	25
Chronic Kidney Disease	28
Asthma	10
Osteoperosis	16
Atrial Fibrilation	18
Heart Failure	15
Chronic Obstructive Pulmonary Disease	17
Diabetes	38
Dementia	11
Cancer	32

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Terry Spark Corwin, MD for Medicare patients.

The highest averages for the top procedures that Dr. Terry Spark Corwin, MD treated as an urologist in Everett, WA were lab tests, urologic procedures, minimally invasive procedures and chemotherapy.

abdominal imaging	13
ablation	16
biological response modifier (BRM) therapy	59
catheterization	48
chemotherapy	59
CT scan	13
diagnostic procedures	13
doctor visit	522
foreign body removal	12
hormone therapy	28
hospital care	29
inpatient care	29
lab tests	304
laser treatment	14
lithotripsy (stone fragmentation)	14
minimally invasive procedures	124
minor procedures	13
pelvic imaging	13
stent placement (stenting)	19
urologic procedures	266

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Terry Spark Corwin, MD.

**Gender**
Male	295
Female	112

**Ethnicity**
Black / African American	16
Asian / Pacific Islander	3
Non-Hispanic White	352
Native American / Alaskan Native	0
Hispanic	13
Other	1

**Age**
75 to 84	139
85 and over	46
Less than 65	38
65 to 74	183

Average of Total of Conditions of Medicare patients treated by Dr. Terry Spark Corwin, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Terry Spark Corwin, MD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	59
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	30
Depression	19
Chronic Kidney Disease	33
Asthma	7
Osteoporosis	5
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Atrial Fibrillation	12
Dementia	9
Cancer	21

Education & Training

He has a state license in Washington.

Licensed In: Washington

Ratings & Reviews

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General Payments

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

**Payments by Company**
Astellas Pharma US Inc	$980 Myrbetriq $362	XTANDI $332	Vesicare $186	$100
Pfizer Inc.	$537 XTANDI $209	TOVIAZ $136	VIAGRA $83	PAXLOVID $43	TALZENNA $35	Other $32
Ferring Pharmaceuticals Inc.	$520 FIRMAGON $520
Medivation Inc.	$498 XTANDI $498
Janssen Biotech, Inc.	$382 ZYTIGA $372	Erleada $10
Other	$3,639 BOTOX $597	ZYTIGA $246	RAPAFLO $234	CONTINENCE CARE $156	CIALIS $130	Other $2,277

**Types of Payments**
Food and Beverage	$6,022
Education	$535

Biography

Dr. Terry Corwin is a specialist in urology (urinary tract disease). He works in Everett, WA and Vancouver, WA. He is affiliated with PeaceHealth. He attended medical school at the University of Texas Southwestern Medical School.