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Dr. Michael Abel Chang, MD

(Michael A. Chang, MD)

(1 Rating)

Specializes in: Physician, Gastroenterology (Digestive System) and Internal Medicine (Adult Medicine)

Drexel University College of Medicine

Professional interests include: endoscopic ultrasound (EUS), pancreas problems, hepatobiliary disorders

9300 Campus Point Drive
San Diego, CA 92037

(619) 543-2347

Dr. Michael Abel Chang, MD is a physician provider in San Diego, CA specializing in physician, gastroenterology (digestive system) and internal medicine (adult medicine). He graduated from Drexel University College of Medicine. Dr. Michael Abel Chang, MD is affiliated with UC San Diego Health, U.S. Department of Veterans Affairs and UC San Diego Health.

Office Locations

9300 Campus Point Drive
San Diego, CA 92037

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200 W. Arbor Drive
San Diego, CA 92103

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3801 Miranda Avenue Palo Alto Vahcs (640)
Palo Alto, CA 94304

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4250 First Avenue
San Diego, CA 92103

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9350 Campus Point Drive Suite 2b La Jolla Ca
La Jolla, CA 92037

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Noteworthy Medicare Patient Procedures Performed by Dr. Michael Abel Chang, MD in 2024

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

Top 5%

By Volume:

endoscopy

gastrointestinal biopsy

gastrointestinal procedures

In 2024, Dr. Michael Abel Chang, MD performed more endoscopy, gastrointestinal biopsy, and gastrointestinal procedures procedures for Medicare patients than 95% of providers in related specialties within California.

Top 10%

By Volume:

colonoscopy

colonoscopy with biopsy

colonoscopy with lesion removal

EGD with biopsy

EGD with lesion removal

In 2024, Dr. Michael Abel Chang, MD performed more colonoscopy, colonoscopy with biopsy, colonoscopy with lesion removal, EGD with biopsy, and EGD with lesion removal procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

EGD with endoscopic ultrasound

EGD with esophageal dilation

esophageal balloon dilation

esophageal dilation

removal of lesion

By Affordability:

endoscopic ultrasound with fine needle aspiration

fine needle aspiration

image-guided biopsy

image-guided fine needle aspiration

image guided procedures

In 2012, among providers in related specialties within California, Dr. Michael Abel Chang, MD performed more EGD with endoscopic ultrasound, EGD with esophageal dilation, esophageal balloon dilation, esophageal dilation, and removal of lesion (e.g. growth) procedures for Medicare patients than 75% of them and he also had a list price for endoscopic ultrasound with fine needle aspiration, fine needle aspiration (FNA), image-guided biopsy, image-guided fine needle aspiration, and image guided procedures that was lower than the list prices billed to Medicare by 75% of them. 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

hospital care	211
inpatient care	211

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

hospital care	160
inpatient care	160

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	35
Female	49

**Ethnicity**
Non-Hispanic White	53
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	30
From 75 to 84	16
85 and over	20
Less than 65	18

Conditions of Medicare patients treated by Dr. Michael Abel Chang, MD in 2013

Hypertension	75
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	58
Depression	48
Chronic Kidney Disease	58
Asthma	0
Osteoperosis	18
Atrial Fibrilation	21
Heart Failure	48
Chronic Obstructive Pulmonary Disease	26
Diabetes	44
Dementia	23
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

doctor visit	13

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	18
Female	23

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

**Age**
From 65 to 74	15
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael Abel Chang, MD in 2016

Hypertension	59
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	49
Depression	27
Chronic Kidney Disease	46
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	44
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA during 2017 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

diagnostic procedures	137
doctor visit	71
gastrointestinal procedures	217
hospital care	175
injections	13
inpatient care	175
minimally invasive procedures	217
preventive care	13
removal of lesion (e.g. growth)	137
ultrasound (sonogram)	22

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	162
Female	129

**Ethnicity**
Non-Hispanic White	189
Black	0
Hispanic	60
Asian	17
Other	13
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	77
85 and over	50
Less than 65	51

Conditions of Medicare patients treated by Dr. Michael Abel Chang, MD in 2017

Hypertension	71
High Cholesterol	52
Stroke	8
Ischemic Heart Disease	54
Depression	36
Chronic Kidney Disease	57
Asthma	8
Osteoperosis	15
Atrial Fibrilation	20
Heart Failure	36
Chronic Obstructive Pulmonary Disease	18
Diabetes	35
Dementia	20
Cancer	22

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

aspiration	26
diagnostic procedures	265
doctor visit	148
gastrointestinal procedures	370
hospital care	180
image guided procedures	26
inpatient care	180
minimally invasive procedures	370
minor procedures	26
removal of lesion (e.g. growth)	265
stent placement (stenting)	19
ultrasound (sonogram)	91

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	205
Female	184

**Ethnicity**
Non-Hispanic White	251
Black	23
Hispanic	60
Asian	37
Other	0
Native American	0

**Age**
From 65 to 74	171
From 75 to 84	97
85 and over	42
Less than 65	79

Conditions of Medicare patients treated by Dr. Michael Abel Chang, MD in 2018

Hypertension	75
High Cholesterol	57
Stroke	8
Ischemic Heart Disease	54
Depression	38
Chronic Kidney Disease	57
Asthma	9
Osteoperosis	13
Atrial Fibrilation	16
Heart Failure	36
Chronic Obstructive Pulmonary Disease	23
Diabetes	39
Dementia	18
Cancer	23

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA during 2019 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

aspiration	16
balloon dilation	19
diagnostic procedures	371
doctor visit	86
esophageal dilation	19
gastrointestinal procedures	566
hospital care	119
image guided procedures	16
injections	19
inpatient care	119
minimally invasive procedures	566
minor procedures	16
preventive care	15
removal of lesion (e.g. growth)	382
stent placement (stenting)	22
ultrasound (sonogram)	88

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	204
Female	200

**Ethnicity**
Non-Hispanic White	253
Black	28
Hispanic	75
Asian	32
Other	0
Native American	0

**Age**
From 65 to 74	181
From 75 to 84	105
85 and over	41
Less than 65	77

Conditions of Medicare patients treated by Dr. Michael Abel Chang, MD in 2019

Hypertension	75
High Cholesterol	58
Stroke	8
Ischemic Heart Disease	52
Depression	40
Chronic Kidney Disease	56
Asthma	9
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	36
Chronic Obstructive Pulmonary Disease	19
Diabetes	43
Dementia	21
Cancer	22

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

aspiration	16
diagnostic procedures	262
doctor visit	122
gastrointestinal procedures	432
hospital care	105
image guided procedures	16
inpatient care	105
minimally invasive procedures	432
minor procedures	16
removal of lesion (e.g. growth)	262
stent placement (stenting)	38
ultrasound (sonogram)	97

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	167
Female	158

**Ethnicity**
Non-Hispanic White	187
Black	24
Hispanic	78
Asian	19
Other	17
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	105
85 and over	31
Less than 65	53

Conditions of Medicare patients treated by Dr. Michael Abel Chang, MD in 2020

Hypertension	75
High Cholesterol	60
Stroke	7
Ischemic Heart Disease	47
Depression	36
Chronic Kidney Disease	55
Asthma	12
Osteoperosis	13
Atrial Fibrilation	17
Heart Failure	36
Chronic Obstructive Pulmonary Disease	21
Diabetes	40
Dementia	21
Cancer	22

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

aspiration	22
diagnostic procedures	309
doctor visit	149
foreign body removal	16
gastrointestinal procedures	468
hospital care	126
image guided procedures	22
inpatient care	126
minimally invasive procedures	468
minor procedures	22
removal of lesion (e.g. growth)	321
stent placement (stenting)	26
ultrasound (sonogram)	89

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	186
Female	224

**Ethnicity**
Non-Hispanic White	241
Black	29
Hispanic	89
Asian	31
Other	20
Native American	0

**Age**
From 65 to 74	171
From 75 to 84	124
85 and over	37
Less than 65	78

Conditions of Medicare patients treated by Dr. Michael Abel Chang, MD in 2021

Hypertension	72
High Cholesterol	60
Stroke	8
Ischemic Heart Disease	45
Depression	40
Chronic Kidney Disease	52
Asthma	14
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	36
Chronic Obstructive Pulmonary Disease	18
Diabetes	36
Dementia	23
Cancer	21

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA during 2022 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

aspiration	25
balloon dilation	26
diagnostic procedures	367
doctor visit	137
esophageal dilation	26
foreign body removal	14
gastrointestinal procedures	656
hospital care	102
image guided procedures	25
inpatient care	102
minimally invasive procedures	656
minor procedures	25
preventive care	14
removal of lesion (e.g. growth)	372
stent placement (stenting)	51
ultrasound (sonogram)	118

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	212
Female	241

**Ethnicity**
Non-Hispanic White	280
Black	0
Hispanic	75
Asian	39
Other	30
Native American	0

**Age**
From 65 to 74	203
From 75 to 84	143
85 and over	40
Less than 65	67

Conditions of Medicare patients treated by Dr. Michael Abel Chang, MD in 2022

Hypertension	75
High Cholesterol	70
Stroke	11
Ischemic Heart Disease	31
Depression	34
Chronic Kidney Disease	35
Asthma	15
Osteoperosis	19
Atrial Fibrilation	26
Heart Failure	28
Chronic Obstructive Pulmonary Disease	22
Diabetes	42
Dementia	9
Cancer	27

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA during 2023 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

aspiration	38
balloon dilation	18
diagnostic procedures	335
doctor visit	103
esophageal dilation	18
foreign body removal	18
gastrointestinal procedures	586
hospital care	58
image guided procedures	38
inpatient care	58
minimally invasive procedures	586
minor procedures	38
removal of lesion (e.g. growth)	335
stent placement (stenting)	50
ultrasound (sonogram)	115

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	170
Female	218

**Ethnicity**
Non-Hispanic White	226
Black	26
Hispanic	60
Asian	50
Other	0
Native American	0

**Age**
From 65 to 74	177
From 75 to 84	141
85 and over	32
Less than 65	38

Conditions of Medicare patients treated by Dr. Michael Abel Chang, MD in 2023

Hypertension	75
High Cholesterol	72
Stroke	10
Ischemic Heart Disease	32
Depression	30
Chronic Kidney Disease	28
Asthma	15
Osteoperosis	24
Atrial Fibrilation	20
Heart Failure	24
Chronic Obstructive Pulmonary Disease	22
Diabetes	36
Dementia	9
Cancer	27

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA during 2024 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

aspiration	21
balloon dilation	25
diagnostic procedures	370
doctor visit	67
esophageal dilation	25
foreign body removal	16
gastrointestinal procedures	603
hospital care	57
image guided procedures	21
inpatient care	57
minimally invasive procedures	603
minor procedures	21
preventive care	15
removal of lesion (e.g. growth)	385
stent placement (stenting)	24
ultrasound (sonogram)	108

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	173
Female	222

**Ethnicity**
Non-Hispanic White	259
Black	14
Hispanic	63
Asian	37
Other	22
Native American	0

**Age**
From 65 to 74	187
From 75 to 84	145
85 and over	22
Less than 65	41

Conditions of Medicare patients treated by Dr. Michael Abel Chang, MD in 2024

Hypertension	75
High Cholesterol	70
Stroke	9
Ischemic Heart Disease	29
Depression	25
Chronic Kidney Disease	27
Asthma	15
Osteoperosis	24
Atrial Fibrilation	18
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	33
Dementia	6
Cancer	31

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Michael Abel Chang, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael Abel Chang, MD treated as a physician provider in San Diego, CA were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

aspiration	23
balloon dilation	22
diagnostic procedures	302
doctor visit	99
esophageal dilation	22
foreign body removal	16
gastrointestinal procedures	487
hospital care	129
image guided procedures	23
injections	16
inpatient care	129
minimally invasive procedures	487
minor procedures	23
preventive care	14
removal of lesion (e.g. growth)	307
stent placement (stenting)	32
ultrasound (sonogram)	91

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Michael Abel Chang, MD.

**Gender**
Male	139
Female	149

**Ethnicity**
Black / African American	13
Asian / Pacific Islander	23
Non-Hispanic White	179
Native American / Alaskan Native	0
Hispanic	52
Other	9

**Age**
75 to 84	86
85 and over	28
Less than 65	45
65 to 74	125

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

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

Hypertension	66
High Cholesterol	56
Stroke	6
Ischemic Heart Disease	41
Depression	32
Chronic Kidney Disease	42
Asthma	8
Osteoporosis	13
Heart Failure	27
Chronic Obstructive Pulmonary Disease	16
Diabetes	35
Atrial Fibrillation	15
Dementia	13
Cancer	19

Education & Training

Dr. Michael Abel Chang, MD graduated from Drexel University College of Medicine. He completed residency at University of California, Los Angeles (UCLA) Affiliated Hospitals. He is certified by the Board Certification: Gastroenterology and has a state license in California.

Medical School: Drexel University College of Medicine

Residency: University of California, Los Angeles (UCLA) Affiliated Hospitals

Board Certification: Board Certification: Gastroenterology

Licensed In: California

Ratings & Reviews

Dr. Michael Abel Chang, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Michael Abel Chang, MD from all over the web to help you find the right in San Diego, CA.

Overall Rating

(1 Rating)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2023-08-14

I scheduled my first colonoscopy last year as the requirements had opened up to 45+ and feel so fortunate to have been referred to Dr. Chang. Our first meeting was virtual due COVID restrictions still being a bit at play and he was very kind, supportive and made sure my questions were answered. I knew what to expect during the procedure and the procedure was as comfortable as could be. He found and removed 19 colon polyps so I would need to repeat another colonoscopy in 3-4 months. This has continued to happen and thankfully, he is able to keep removing them. I have changed my diet and am hoping eventually they will stop growing but I am glad to know that I have a doctor that is taking care of these, to help prevent from getting more serious. His bedside manner during each colonoscopy has been wonderful and his staff are equally helpful and supportive. It makes a huge difference for a procedure that many people loathe. He definitely makes it easier to deal with and I know that he is taking care of me and my situation each time.

General Payments

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

**Payments by Company**
Boston Scientific Corporation	$10,279 General - Biliary Devices $10,014	AXIOS $115	RESOLUTION CLIP $93	BIOPSY $28	EPIC BILIARY $14	Other $16
Olympus Corporation of the Americas	$1,066 Olympus EUS Devices $1,066
Covidien LP	$560 Beacon $279	Barrx $251	PillCam $30
FUJIFILM Healthcare Americas Corporation	$332 FUJIFILM $332
Janssen Biotech, Inc.	$191 REMICADE $191
Other	$1,151 Hemospray $140	Sovaldi $124	GI Solutions $119	Endoscopy Products $109	CoreValve Evolut $104	Other $555

**Types of Payments**
Grant	$10,000
Food and Beverage	$2,509
Travel and Lodging	$879
Education	$191

Biography

Dr. Michael Chang practices gastroenterology (digestive system) and physician in San Diego, CA, Palo Alto, CA, and La Jolla, CA. He is especially interested in pancreas problems, hepatobiliary disorders, and endoscopic ultrasound (EUS). He is affiliated with UC San Diego Health and U.S. Department of Veterans Affairs. Dr. Chang obtained his medical school training at Drexel University College of Medicine and performed his residency at a hospital affiliated with the University of California, Los Angeles (UCLA).