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Home > AZ Providers > Bariatric Surgeons

Dr. Patrick Michael Chiasson, MD

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Specializes in: Bariatric Surgery and General Surgery

McGill University Faculty of Medicine

6130 N. La Cholla Boulevard Suite 250
Tucson, AZ 85741

(520) 219-8690

Dr. Patrick Michael Chiasson, MD is a bariatric surgeon in Tucson, AZ specializing in bariatric surgery and general surgery. He graduated from McGill University Faculty of Medicine. Dr. Patrick Michael Chiasson, MD is affiliated with Northwest Primary & Specialty Care and Northwest Healthcare.

Office Locations

Northwest Healthcare

6130 N. La Cholla Boulevard Suite 250
Tucson, AZ 85741

(520) 219-8694

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Noteworthy Medicare Patient Procedures Performed by Dr. Patrick Michael Chiasson, MD in 2023

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

Top 5%

By Volume:

diagnostic upper endoscopy

EGD with biopsy

EGD with lesion removal

esophageal manometry

gastrointestinal procedures

hernia surgery

laparoscopic paraesophageal hernia repair

minimally invasive procedures

therapeutic upper endoscopy

upper endoscopy

wireless esophageal pH monitoring

By Affordability:

diagnostic EGD

diagnostic upper endoscopy

EGD with biopsy

EGD with lesion removal

esophageal manometry

esophageal pH monitoring

esophagogastroduodenoscopy

gastrointestinal motility tests

manometry

therapeutic EGD

therapeutic upper endoscopy

upper endoscopy

upper endoscopy with biopsy

upper endoscopy with lesion removal

In 2023, among providers in related specialties within Arizona, Dr. Patrick Michael Chiasson, MD performed more diagnostic upper endoscopy, EGD with biopsy, EGD with lesion removal, esophageal manometry, gastrointestinal procedures, hernia surgery, laparoscopic paraesophageal hernia repair, minimally invasive procedures, therapeutic upper endoscopy, upper endoscopy, and wireless esophageal pH monitoring (Bravo test) procedures for Medicare patients than 95% of them and he also had a list price for diagnostic EGD, diagnostic upper endoscopy, EGD with biopsy, EGD with lesion removal, esophageal manometry, esophageal pH monitoring, esophagogastroduodenoscopy (EGD), gastrointestinal motility tests, manometry, therapeutic EGD, therapeutic upper endoscopy, upper endoscopy, upper endoscopy with biopsy, and upper endoscopy with lesion removal that was lower than the list prices billed to Medicare by 95% 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. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2012 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

bypass surgery	18
diagnostic procedures	34
doctor visit	367
gastrointestinal procedures	68
hospital care	59
inpatient care	59
minimally invasive procedures	68
preventive care	16
removal of lesion (e.g. growth)	34
weight management	18

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2013 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

diagnostic procedures	27
doctor visit	273
gastrointestinal procedures	65
hospital care	71
inpatient care	71
minimally invasive procedures	65
preventive care	20
removal of lesion (e.g. growth)	27

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Male	115
Female	142

**Ethnicity**
Non-Hispanic White	227
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	62
85 and over	22
Less than 65	50

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2013

Hypertension	68
High Cholesterol	44
Stroke	6
Ischemic Heart Disease	35
Depression	32
Chronic Kidney Disease	27
Asthma	14
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	9
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2014 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

diagnostic procedures	50
doctor visit	265
gastrointestinal procedures	78
hospital care	23
inpatient care	23
minimally invasive procedures	78
preventive care	15
removal of lesion (e.g. growth)	50

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Male	93
Female	127

**Ethnicity**
Non-Hispanic White	185
Black	0
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	126
From 75 to 84	38
85 and over	11
Less than 65	45

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2014

Hypertension	73
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	22
Depression	29
Chronic Kidney Disease	21
Asthma	15
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2015 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

diagnostic procedures	33
doctor visit	231
gastrointestinal procedures	101
hospital care	53
inpatient care	53
minimally invasive procedures	101
preventive care	15
removal of lesion (e.g. growth)	33
weight management	15

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Male	156
Female	230

**Ethnicity**
Non-Hispanic White	332
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	192
From 75 to 84	80
85 and over	38
Less than 65	76

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2015

Hypertension	75
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	28
Depression	29
Chronic Kidney Disease	29
Asthma	14
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	36
Dementia	8
Cancer	18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2016 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

diagnostic procedures	57
doctor visit	218
gastrointestinal procedures	137
minimally invasive procedures	137
preventive care	28
removal of lesion (e.g. growth)	57
weight management	15

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Male	89
Female	122

**Ethnicity**
Non-Hispanic White	193
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	45
85 and over	11
Less than 65	37

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2016

Hypertension	72
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	30
Depression	33
Chronic Kidney Disease	31
Asthma	22
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	8
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2017 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

abdominal surgery	12
diagnostic procedures	41
doctor visit	266
gastrointestinal procedures	144
minimally invasive procedures	132
open surgery	12
preventive care	21
removal of lesion (e.g. growth)	41
weight management	20

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Male	95
Female	136

**Ethnicity**
Non-Hispanic White	198
Black	0
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	59
85 and over	18
Less than 65	36

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2017

Hypertension	75
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	34
Depression	34
Chronic Kidney Disease	28
Asthma	17
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	16
Diabetes	33
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2018 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

diagnostic procedures	62
doctor visit	239
gastrointestinal procedures	157
hospital care	11
inpatient care	11
manometry	23
minimally invasive procedures	134
preventive care	13
removal of lesion (e.g. growth)	62
weight management	11

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Male	100
Female	129

**Ethnicity**
Non-Hispanic White	196
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	148
From 75 to 84	44
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2018

Hypertension	68
High Cholesterol	59
Stroke	5
Ischemic Heart Disease	28
Depression	31
Chronic Kidney Disease	30
Asthma	13
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	32
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2019 were gastrointestinal procedures, minimally invasive procedures, manometry and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

diagnostic procedures	48
doctor visit	330
gastrointestinal procedures	205
manometry	50
minimally invasive procedures	130
removal of lesion (e.g. growth)	48
weight management	17

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Male	114
Female	149

**Ethnicity**
Non-Hispanic White	227
Black	0
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	159
From 75 to 84	68
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2019

Hypertension	63
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	31
Depression	31
Chronic Kidney Disease	32
Asthma	18
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Dementia	4
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2020 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

balloon dilation	14
diagnostic procedures	33
doctor visit	327
esophageal dilation	14
gastrointestinal procedures	167
manometry	33
minimally invasive procedures	113
preventive care	11
removal of lesion (e.g. growth)	33

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Male	94
Female	124

**Ethnicity**
Non-Hispanic White	188
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	124
From 75 to 84	62
85 and over	11
Less than 65	21

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2020

Hypertension	67
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	35
Depression	29
Chronic Kidney Disease	34
Asthma	16
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	16
Diabetes	23
Dementia	5
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2021 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

balloon dilation	13
diagnostic procedures	47
doctor visit	315
esophageal dilation	13
gastrointestinal procedures	207
manometry	43
minimally invasive procedures	127
removal of lesion (e.g. growth)	47

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Male	74
Female	122

**Ethnicity**
Non-Hispanic White	171
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	64
85 and over	11
Less than 65	20

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2021

Hypertension	73
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	37
Depression	36
Chronic Kidney Disease	36
Asthma	13
Osteoperosis	14
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	16
Diabetes	27
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ during 2022 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

diagnostic procedures	51
doctor visit	259
gastrointestinal procedures	137
manometry	25
minimally invasive procedures	94
removal of lesion (e.g. growth)	51

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Male	60
Female	108

**Ethnicity**
Non-Hispanic White	145
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	56
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	28
Depression	34
Chronic Kidney Disease	21
Asthma	19
Osteoperosis	20
Atrial Fibrilation	17
Heart Failure	10
Chronic Obstructive Pulmonary Disease	21
Diabetes	24
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Patrick Michael Chiasson, MD for Medicare patients.

The highest averages for the top procedures that Dr. Patrick Michael Chiasson, MD treated as a bariatric surgeon in Tucson, AZ were gastrointestinal procedures, minimally invasive procedures, inpatient care and diagnostic procedures.

abdominal surgery	12
balloon dilation	13
bypass surgery	18
diagnostic procedures	43
doctor visit	280
esophageal dilation	13
gastrointestinal procedures	133
hospital care	43
inpatient care	43
manometry	34
minimally invasive procedures	107
open surgery	12
preventive care	17
removal of lesion (e.g. growth)	43
weight management	16

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Patrick Michael Chiasson, MD.

**Gender**
Female	126
Male	90

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	187
Hispanic	7
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	11
75 to 84	52
Less than 65	25
65 to 74	117

Average of Total of Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD From 2012 - 2022

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

Hypertension	64
High Cholesterol	54
Stroke	1
Ischemic Heart Disease	28
Depression	28
Chronic Kidney Disease	26
Asthma	14
Osteoporosis	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	13
Diabetes	26
Atrial Fibrillation	10
Dementia	4
Cancer	12

Education & Training

Dr. Patrick Michael Chiasson, MD graduated from McGill University Faculty of Medicine. He completed residency at Dalhousie University Affiliated Hospitals. He is certified by the American Board of Surgery Surgery - General and has a state license in Arizona.

Medical School: McGill University Faculty of Medicine

Residency: Dalhousie University Affiliated Hospitals

Board Certification: American Board of Surgery Surgery - General

Licensed In: Arizona

Affiliations & Hospitals

Dr. Patrick Michael Chiasson, MD is associated with these hospitals and organizations:

Northwest Primary & Specialty Care

Northwest Healthcare

Ratings & Reviews

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General Payments

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

**Payments by Company**
Medical Device Business Services, Inc.	$18,434 Echelon Flex $16,790	LINX Reflux Management System $1,400	ECHELON ENDOPATH $145	Echelon; Endopath $99
Ethicon US, LLC	$5,639 Energy: Harmonic $4,125	LINX Reflux Management System $482	Echelon Flex $247	Endoscopy Endocutters $179	Energy Harmonic $125	Other $481
W. L. Gore & Associates, Inc.	$4,972 SEAMGUARD Bioabsorbable Staple Line Reinforcement $4,654	GORE ENFORM Preperitoneal Biomaterial $317
Ethicon Inc.	$4,246 LINX Reflux Management System $2,339	STRATAFIX $56	Mechanical $11	$1,840
Torax Medical, Inc.	$1,437 LINX $1,437
Other	$3,460 Orbera $907	OverStitch Endoscopic Suturing System $736	ORBERA Intragastric Balloon System $472	LAPBAND AND OR OVERSTITCH AND OR ORBERA $259	Signia $170	Other $915

**Types of Payments**
Consulting Fee	$24,155
Food and Beverage	$5,365
Honoraria	$4,550
Travel and Lodging	$4,117

Research Payments

Dr. Patrick Michael Chiasson, MD has received 15 research payments totaling $19,633.

Biography

Dr. Patrick Chiasson practices general surgery and bariatric surgery. Dr. Chiasson attended McGill University Faculty of Medicine and then went on to complete his residency at a hospital affiliated with Dalhousie University. He is affiliated with Northwest Primary & Specialty Care and Northwest Healthcare.

Select Year:

Dr. Patrick Michael Chiasson, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Patrick Michael Chiasson, MD in 2023

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Patrick Michael Chiasson, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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