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Dr. David Chi Chang, MD

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Specializes in: Internal Medicine (Adult Medicine) and Sleep Medicine

Indiana University School of Medicine

Professional interests include: sleep disorders

1001 Broadway Suite 215
Seattle, WA 98122

(206) 860-2365

Dr. David Chi Chang, MD is an internist in Seattle, WA specializing in internal medicine (adult medicine) and sleep medicine. He graduated from Indiana University School of Medicine. Dr. David Chi Chang, MD is affiliated with Saint Alphonsus Health System.

Office Locations

1001 Broadway Suite 215
Seattle, WA 98122

(206) 860-2365

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19250 Sw 65th Avenue Suite 137
Tualatin, OR 97062

(503) 413-5702

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3025 W Cherry Lane Suite 204
Meridian, ID 83642

(208) 302-3300

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Noteworthy Medicare Patient Procedures Performed by Dr. David Chi Chang, MD in 2024

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

Top 25%

By Volume:

home cardiorespiratory sleep study

In 2012, Dr. David Chi Chang, MD performed more home cardiorespiratory (type 3) sleep study 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. David Chi Chang, MD treated as an internist in Seattle, WA during 2012 were sleep study and airway management.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

airway management	63
doctor visit	493
sleep study	130

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2013 were sleep study and airway management.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

airway management	61
doctor visit	539
sleep study	109

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	163
Female	124

**Ethnicity**
Non-Hispanic White	230
Black	23
Hispanic	0
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	152
From 75 to 84	76
85 and over	28
Less than 65	31

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2013

Hypertension	54
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	37
Depression	24
Chronic Kidney Disease	18
Asthma	8
Osteoperosis	0
Atrial Fibrilation	16
Heart Failure	17
Chronic Obstructive Pulmonary Disease	8
Diabetes	31
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2014 were sleep study and airway management.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

airway management	47
doctor visit	495
sleep study	87

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	167
Female	110

**Ethnicity**
Non-Hispanic White	238
Black	0
Hispanic	0
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	161
From 75 to 84	70
85 and over	26
Less than 65	20

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2014

Hypertension	49
High Cholesterol	49
Stroke	6
Ischemic Heart Disease	26
Depression	19
Chronic Kidney Disease	19
Asthma	6
Osteoperosis	0
Atrial Fibrilation	20
Heart Failure	17
Chronic Obstructive Pulmonary Disease	9
Diabetes	27
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2015 were sleep study and airway management.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

airway management	48
doctor visit	549
sleep study	103

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	352
Female	264

**Ethnicity**
Non-Hispanic White	496
Black	38
Hispanic	0
Asian	46
Other	0
Native American	0

**Age**
From 65 to 74	368
From 75 to 84	170
85 and over	46
Less than 65	32

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2015

Hypertension	51
High Cholesterol	50
Stroke	6
Ischemic Heart Disease	28
Depression	20
Chronic Kidney Disease	20
Asthma	8
Osteoperosis	0
Atrial Fibrilation	18
Heart Failure	17
Chronic Obstructive Pulmonary Disease	6
Diabetes	27
Dementia	5
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2016 were sleep study and airway management.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

airway management	41
doctor visit	464
sleep study	89

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	175
Female	132

**Ethnicity**
Non-Hispanic White	242
Black	20
Hispanic	0
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	175
From 75 to 84	91
85 and over	23
Less than 65	18

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2016

Hypertension	52
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	30
Depression	21
Chronic Kidney Disease	25
Asthma	11
Osteoperosis	5
Atrial Fibrilation	16
Heart Failure	13
Chronic Obstructive Pulmonary Disease	7
Diabetes	26
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2017 were sleep study and airway management.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

airway management	36
doctor visit	477
sleep study	94

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	174
Female	125

**Ethnicity**
Non-Hispanic White	250
Black	0
Hispanic	0
Asian	21
Other	14
Native American	0

**Age**
From 65 to 74	168
From 75 to 84	95
85 and over	20
Less than 65	16

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2017

Hypertension	55
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	30
Depression	26
Chronic Kidney Disease	25
Asthma	8
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	5
Diabetes	25
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2018 were sleep study and airway management.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

airway management	40
doctor visit	567
sleep study	108

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	201
Female	160

**Ethnicity**
Non-Hispanic White	305
Black	0
Hispanic	0
Asian	20
Other	22
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	99
85 and over	27
Less than 65	19

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2018

Hypertension	55
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	33
Depression	26
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	3
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	7
Diabetes	22
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2019 were sleep study and airway management.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

airway management	22
doctor visit	451
sleep study	62

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	175
Female	123

**Ethnicity**
Non-Hispanic White	249
Black	16
Hispanic	0
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	92
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2019

Hypertension	54
High Cholesterol	51
Stroke	6
Ischemic Heart Disease	33
Depression	26
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	5
Atrial Fibrilation	17
Heart Failure	16
Chronic Obstructive Pulmonary Disease	8
Diabetes	25
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2020 were sleep study.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

doctor visit	313
sleep study	16

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	132
Female	91

**Ethnicity**
Non-Hispanic White	183
Black	12
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	135
From 75 to 84	67
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2020

Hypertension	48
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	35
Depression	22
Chronic Kidney Disease	27
Asthma	6
Osteoperosis	0
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2021 were sleep study and airway management.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

airway management	24
doctor visit	492
sleep study	68

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	164
Female	117

**Ethnicity**
Non-Hispanic White	240
Black	0
Hispanic	0
Asian	15
Other	14
Native American	0

**Age**
From 65 to 74	175
From 75 to 84	80
85 and over	14
Less than 65	12

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2021

Hypertension	52
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	34
Depression	29
Chronic Kidney Disease	28
Asthma	5
Osteoperosis	6
Atrial Fibrilation	17
Heart Failure	15
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	5
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2022 were sleep study and airway management.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

airway management	17
doctor visit	477
sleep study	61

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	158
Female	110

**Ethnicity**
Non-Hispanic White	225
Black	0
Hispanic	0
Asian	14
Other	14
Native American	0

**Age**
From 65 to 74	169
From 75 to 84	77
85 and over	11
Less than 65	11

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2022

Hypertension	63
High Cholesterol	73
Stroke	6
Ischemic Heart Disease	26
Depression	23
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	23
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

doctor visit	34

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	32
Female	23

**Age**
From 65 to 74	23
From 75 to 84	17
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2023

Hypertension	75
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	24
Depression	29
Chronic Kidney Disease	31
Asthma	0
Osteoperosis	0
Atrial Fibrilation	29
Heart Failure	27
Chronic Obstructive Pulmonary Disease	0
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA during 2024 were sleep study.

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

doctor visit	233
sleep study	111

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	80
Female	93

**Ethnicity**
Non-Hispanic White	157
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	52
85 and over	17
Less than 65	18

Conditions of Medicare patients treated by Dr. David Chi Chang, MD in 2024

Hypertension	72
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	20
Depression	31
Chronic Kidney Disease	16
Asthma	12
Osteoperosis	12
Atrial Fibrilation	24
Heart Failure	16
Chronic Obstructive Pulmonary Disease	15
Diabetes	21
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. David Chi Chang, MD for Medicare patients.

The highest averages for the top procedures that Dr. David Chi Chang, MD treated as an internist in Seattle, WA were sleep study and airway management.

airway management	39
doctor visit	429
sleep study	86

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. David Chi Chang, MD.

**Gender**
Male	151
Female	113

**Ethnicity**
Black / African American	8
Asian / Pacific Islander	15
Non-Hispanic White	216
Native American / Alaskan Native	0
Hispanic	0
Other	5

**Age**
75 to 84	75
85 and over	16
Less than 65	13
65 to 74	154

Average of Total of Conditions of Medicare patients treated by Dr. David Chi Chang, MD From 2012 - 2024

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

Hypertension	52
High Cholesterol	52
Stroke	3
Ischemic Heart Disease	27
Depression	22
Chronic Kidney Disease	22
Asthma	6
Osteoporosis	3
Heart Failure	14
Chronic Obstructive Pulmonary Disease	5
Diabetes	24
Atrial Fibrillation	16
Dementia	4
Cancer	9

Education & Training

Dr. David Chi Chang, MD graduated from Indiana University School of Medicine. He completed residency at Pennsylvania Hospital. He is certified by the Sleep Medicine, Board Certified and has a state license in Idaho.

Medical School: Indiana University School of Medicine

Residency: Pennsylvania Hospital

Board Certification: Sleep Medicine, Board Certified

Licensed In: Idaho

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General Payments

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

**Payments by Company**
Medtronic USA, Inc.	$202 ACTIVOS $147	VECTRIS $55
Boston Scientific Corporation	$178 SPECTRA SYSTEM $147	CLINICAL TRIAL PRODUCT $31
Jazz Pharmaceuticals Inc.	$142 XYWAV $125	Prialt $17
Bristol-Myers Squibb Company	$80 $80
Harmony Biosciences LLC	$21 Wakix $21
Other	$17 SHINGRIX $17

**Types of Payments**
Food and Beverage	$640

Biography

Dr. David Chang is a specialist in sleep medicine. He has indicated that his clinical interests include sleep disorders. Dr. Chang attended Indiana University School of Medicine and subsequently trained at Pennsylvania Hospital for residency. He is affiliated with Saint Alphonsus Health System.