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Dr. Leigh Perreault, MD

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Specializes in: Adult Endocrinology

University of Southern California (USC), Keck School of Medicine (1996)

Professional interests include: metabolism, endocrine diseases (hormone disorders), diabetes

5495 Arapahoe Avenue
Boulder, CO 80303

(720) 848-9200

Dr. Leigh Perreault, MD is an endocrinologist in Boulder, CO specializing in adult endocrinology. She graduated from University of Southern California (USC), Keck School of Medicine in 1996 and has 30 years of experience. Dr. Leigh Perreault, MD is affiliated with UCHealth, University of Colorado Medicine and UCHealth Family Medicine - Westminster.

Office Locations

5495 Arapahoe Avenue
Boulder, CO 80303

(720) 848-9200

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University of Colorado Medicine

7403 Church Ranch Boulevard Suite 107
Westminster, CO 80021

(720) 848-9400

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12605 E 16th Avenue
Aurora, CO 80045

(720) 848-0000

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In The News (see more mentions in the news)

“Accompanying editorial author Leigh Perreault, MD, of the University of Colorado School of Medicine in Aurora, praised the study for contributing "important new findings about how an AI-delivered...”—"AI Draws Even With Clinicians for Diabetes Prevention Intervention", MedPage Today, October 2025

“Population weight gain could possibly be prevented using a novel obesity care delivery system deployed in primary care, said Leigh Perreault, MD, of the University of Colorado School of Medicine.”—"ADA Roundup: Weight-Loss Studies Take Center Stage", MedPage Today, June 2025

“Dr. Leigh Perreault, an endocrinologist at UCHealth, says insurers' refusal to cover drugs like Ozempic makes no sense.”—"Colorado bill would require insurers and Medicaid to cover weight loss drugs like Wegovy", CBS News, March 2024

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	25

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	28

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	12
Female	15

**Age**
From 65 to 74	12
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2013

Hypertension	70
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	56
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	18

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	18
Female	15

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2014

Hypertension	61
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	33
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	45
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	41

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	22
Female	44

**Age**
From 65 to 74	38
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2015

Hypertension	70
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	33
Depression	0
Chronic Kidney Disease	42
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	58
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	60

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	24
Female	33

**Age**
From 65 to 74	34
From 75 to 84	0
85 and over	0
Less than 65	11

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2016

Hypertension	51
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	28
Depression	23
Chronic Kidney Disease	47
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	67
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	127

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	37
Female	42

**Ethnicity**
Non-Hispanic White	61
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	43
From 75 to 84	22
85 and over	0
Less than 65	14

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2017

Hypertension	61
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	41
Depression	30
Chronic Kidney Disease	47
Asthma	0
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	63
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	134

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	37
Female	49

**Ethnicity**
Non-Hispanic White	70
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	18
85 and over	0
Less than 65	14

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2018

Hypertension	55
High Cholesterol	35
Stroke	0
Ischemic Heart Disease	28
Depression	27
Chronic Kidney Disease	55
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	14
Chronic Obstructive Pulmonary Disease	0
Diabetes	66
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	168

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	42
Female	58

**Ethnicity**
Non-Hispanic White	83
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	62
From 75 to 84	20
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2019

Hypertension	62
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	30
Depression	28
Chronic Kidney Disease	56
Asthma	11
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	18
Chronic Obstructive Pulmonary Disease	0
Diabetes	67
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	162

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	35
Female	70

**Ethnicity**
Non-Hispanic White	88
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	67
From 75 to 84	0
85 and over	0
Less than 65	20

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2020

Hypertension	60
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	29
Depression	25
Chronic Kidney Disease	50
Asthma	0
Osteoperosis	13
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	56
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	95

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	28
Female	36

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

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2021

Hypertension	61
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	20
Depression	33
Chronic Kidney Disease	69
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	67
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	86

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	30
Female	32

**Age**
From 65 to 74	33
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2022

Hypertension	73
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	24
Depression	18
Chronic Kidney Disease	27
Asthma	0
Osteoperosis	21
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	65
Dementia	0
Cancer	26

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Leigh Perreault, MD for Medicare patients.

doctor visit	85

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Leigh Perreault, MD.

**Gender**
Male	25
Female	35

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	27
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	5
85 and over	0
Less than 65	5
65 to 74	35

Average of Total of Conditions of Medicare patients treated by Dr. Leigh Perreault, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Leigh Perreault, MD treated were hypertension, diabetes, high cholesterol and chronic kidney disease.

Hypertension	56
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	24
Depression	16
Chronic Kidney Disease	35
Asthma	1
Osteoporosis	4
Heart Failure	5
Chronic Obstructive Pulmonary Disease	1
Diabetes	55
Atrial Fibrillation	1
Dementia	0
Cancer	5

Education & Training

Dr. Leigh Perreault, MD graduated from University of Southern California (USC), Keck School of Medicine in 1996. She completed residency at University of Colorado Denver Affiliated Hospitals. She has a state license in Colorado.

Medical School: University of Southern California (USC), Keck School of Medicine (1996)

Residency: University of Colorado Denver Affiliated Hospitals (1998)

Licensed In: Colorado

Affiliations & Hospitals

Dr. Leigh Perreault, MD is associated with these hospitals and organizations:

UCHealth

University of Colorado Medicine

UCHealth Family Medicine - Westminster

Ratings & Reviews

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General Payments

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

**Payments by Company**
Novo Nordisk Inc	$537,108 Saxenda $163,341	Ozempic $87,362	RYBELSUS $78,179	Victoza $40,118	Wegovy $29,654	Other $138,455
Lilly USA, LLC	$325,063 JARDIANCE $165,489	MOUNJARO $79,387	LYUMJEV $10,805	GLYXAMBI $7,968	JENTADUETO $5,775	Other $55,639
Boehringer Ingelheim Pharmaceuticals, Inc.	$283,764 JARDIANCE $242,679	Empagliflozin $20,847	$20,238
Merck Sharp & Dohme Corporation	$261,310 STEGLATRO $75,026	NON-PRODUCT $58,799	JANUVIA $56,827	JANUMET XR $2,673	JUVISYNC $1,209	Other $66,777
AstraZeneca Pharmaceuticals LP	$257,555 FARXIGA $214,089	BYDUREON $41,624	BYDUREON PEN $16	$1,827
Other	$525,755 NO PRODUCT DISCUSSED $89,563	Saxenda $84,739	INVOKANA $72,071	Kerendia $51,585	SOLIQUA 100/33 $36,889	Other $190,908

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$1,381,940
Consulting Fee	$439,555
Travel and Lodging	$320,705
Food and Beverage	$38,726
Honoraria	$7,100
Other	$2,528

Biography

Dr. Leigh Perreault sees patients in Boulder, CO, Aurora, CO, and Westminster, CO. Her medical specialty is adult endocrinology. Areas of expertise for Dr. Perreault include diabetes and metabolism. Before performing her residency at a hospital affiliated with the University of Colorado Denver, Dr. Perreault attended the University of Southern California (USC), Keck School of Medicine. She is professionally affiliated with the University of Colorado Hospital and the University of Colorado Medicine.

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Dr. Leigh Perreault, MD

Office Locations

In The News (see more mentions in the news)

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. Leigh Perreault, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Leigh Perreault, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Leigh Perreault, 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. Leigh Perreault, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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