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Home > CO Providers > Allergists & Immunologists

Dr. Michael J. Flais, MD

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Specializes in: Allergy & Immunology

University of Toledo College of Medicine

3400 W 16th Street Building 5, Unit Y
Greeley, CO 80634

(970) 356-3907

Dr. Michael J. Flais, MD is an allergist and immunologist in Greeley, CO specializing in allergy & immunology. He graduated from University of Toledo College of Medicine. Dr. Michael J. Flais, MD is affiliated with CommonSpirit Health - Mountain Region.

Office Locations

CommonSpirit Health - Mountain Region

3400 W 16th Street Building 5, Unit Y
Greeley, CO 80634

(970) 356-3907

(970) 221-0948

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Noteworthy Medicare Patient Procedures Performed by Dr. Michael J. Flais, MD in 2023

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

Top 5%

By Affordability:

allergen immunotherapy

immunotherapy

subcutaneous allergen immunotherapy

In 2023, Dr. Michael J. Flais, MD had a list price for allergen immunotherapy, immunotherapy, and subcutaneous allergen immunotherapy (allergy shots) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Colorado. 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 25%

By Affordability:

intradermal allergy test

In 2012, Dr. Michael J. Flais, MD had a list price for intradermal allergy test that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Colorado. 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

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

doctor visit	127

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

doctor visit	141

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	18
Female	52

**Age**
From 65 to 74	47
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2013

Hypertension	50
High Cholesterol	63
Stroke	0
Ischemic Heart Disease	20
Depression	16
Chronic Kidney Disease	0
Asthma	46
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	23
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Michael J. Flais, MD treated as an allergist and immunologist in Greeley, CO during 2014 were immunotherapy and injections.

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

doctor visit	126
immunotherapy	119
injections	119

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	25
Female	44

**Age**
From 65 to 74	50
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2014

Hypertension	58
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	33
Depression	0
Chronic Kidney Disease	0
Asthma	39
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	22
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

doctor visit	106

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	42
Female	88

**Ethnicity**
Non-Hispanic White	102
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	94
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2015

Hypertension	46
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	22
Depression	0
Chronic Kidney Disease	0
Asthma	42
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	26
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael J. Flais, MD treated as an allergist and immunologist in Greeley, CO during 2016 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

allergy testing	258
doctor visit	95
immunotherapy	191
injections	191
minimally invasive procedures	258
skin testing	258

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	23
Female	46

**Ethnicity**
Non-Hispanic White	52
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	45
From 75 to 84	11
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2016

Hypertension	57
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	20
Depression	0
Chronic Kidney Disease	0
Asthma	48
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael J. Flais, MD treated as an allergist and immunologist in Greeley, CO during 2017 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

allergy testing	345
doctor visit	112
immunotherapy	235
injections	235
minimally invasive procedures	345
skin testing	345

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	22
Female	49

**Ethnicity**
Non-Hispanic White	58
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	44
From 75 to 84	15
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2017

Hypertension	54
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	20
Depression	0
Chronic Kidney Disease	0
Asthma	41
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael J. Flais, MD treated as an allergist and immunologist in Greeley, CO during 2018 were immunotherapy and injections.

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

doctor visit	114
immunotherapy	276
injections	276

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	20
Female	60

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

**Age**
From 65 to 74	51
From 75 to 84	18
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2018

Hypertension	59
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	21
Depression	16
Chronic Kidney Disease	0
Asthma	38
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	18
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael J. Flais, MD treated as an allergist and immunologist in Greeley, CO during 2019 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

allergy testing	505
doctor visit	167
immunotherapy	289
injections	289
minimally invasive procedures	505
skin testing	505

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	31
Female	98

**Ethnicity**
Non-Hispanic White	114
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	32
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2019

Hypertension	50
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	20
Depression	19
Chronic Kidney Disease	10
Asthma	49
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	13
Diabetes	12
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael J. Flais, MD treated as an allergist and immunologist in Greeley, CO during 2020 were immunotherapy and injections.

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

doctor visit	75
immunotherapy	206
injections	206

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	18
Female	65

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

**Age**
From 65 to 74	52
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2020

Hypertension	52
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	18
Depression	16
Chronic Kidney Disease	16
Asthma	43
Osteoperosis	16
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	18
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael J. Flais, MD treated as an allergist and immunologist in Greeley, CO during 2021 were skin testing, minimally invasive procedures, allergy testing and immunotherapy.

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

allergy testing	1137
doctor visit	133
immunotherapy	293
injections	293
minimally invasive procedures	1137
skin testing	1137

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	57
Female	133

**Ethnicity**
Non-Hispanic White	173
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	44
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2021

Hypertension	47
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	21
Depression	20
Chronic Kidney Disease	15
Asthma	47
Osteoperosis	11
Atrial Fibrilation	6
Heart Failure	6
Chronic Obstructive Pulmonary Disease	6
Diabetes	16
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael J. Flais, MD treated as an allergist and immunologist in Greeley, CO during 2022 were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

allergy testing	2726
doctor visit	231
immunotherapy	638
injections	638
minimally invasive procedures	2411
skin testing	2726

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	87
Female	142

**Ethnicity**
Non-Hispanic White	208
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	149
From 75 to 84	50
85 and over	12
Less than 65	18

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2022

Hypertension	57
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	15
Depression	20
Chronic Kidney Disease	9
Asthma	43
Osteoperosis	14
Atrial Fibrilation	7
Heart Failure	0
Chronic Obstructive Pulmonary Disease	12
Diabetes	13
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Michael J. Flais, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael J. Flais, MD treated as an allergist and immunologist in Greeley, CO were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

allergy testing	994
doctor visit	129
immunotherapy	280
injections	280
minimally invasive procedures	931
skin testing	994

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Michael J. Flais, MD.

**Gender**
Male	31
Female	70

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	76
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	17
85 and over	1
Less than 65	1
65 to 74	67

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

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

Hypertension	48
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	19
Depression	9
Chronic Kidney Disease	4
Asthma	39
Osteoporosis	4
Heart Failure	0
Chronic Obstructive Pulmonary Disease	2
Diabetes	17
Atrial Fibrillation	1
Dementia	0
Cancer	2

Education & Training

Dr. Michael J. Flais, MD graduated from University of Toledo College of Medicine. He completed residency at Northwestern University Affiliated Hospitals. He has a state license in Illinois.

Medical School: University of Toledo College of Medicine

Residency: Northwestern University Affiliated Hospitals

Licensed In: Illinois

Affiliations & Hospitals

Dr. Michael J. Flais, MD is associated with these hospitals and organizations:

CommonSpirit Health - Mountain Region

Ratings & Reviews

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General Payments

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

**Payments by Company**
GlaxoSmithKline, LLC.	$301 NUCALA $69	ARNUITY $55	BREO $43	INCRUSE $15	$118
AstraZeneca Pharmaceuticals LP	$149 SYMBICORT $12	$136
Kaleo, Inc.	$105 Auvi-Q $105
Genentech USA, Inc.	$101 XOLAIR $101
Regeneron Healthcare Solutions, Inc.	$87 DUPIXENT DUPILUMAB INJECTION $87
Other	$241 Auvi-Q $57	Xhance $31	XOLAIR $23	EUCRISA $21	Orladeyo $19	Other $89

**Types of Payments**
Food and Beverage	$894
Education	$90

Ownership and Interest Payments

This table describes ownership payments received by Dr. Michael J. Flais, MD.

CCPA Purchasing Partners, L.P.	2016	$26.49	Physician Covered Recipient	Limited Partnership Interest
CCPA Purchasing Partners, L.P.	2014	$26.49	Physician Covered Recipient	Limited Partnership Interest
CCPA Purchasing Partners, L.P.	2015	$26.49	Physician Covered Recipient	Limited Partnership Interest

Biography

Dr. Michael Flais' medical specialty is allergy & immunology. Dr. Flais has indicated that his clinical interests include asthma and allergies. Before completing his residency at a hospital affiliated with Northwestern University, Dr. Flais attended medical school at the University of Toledo College of Medicine. He is affiliated with CommonSpirit Health - Mountain Region.

Select Year:

Dr. Michael J. Flais, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Michael J. Flais, MD in 2023

By Affordability:

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. Michael J. Flais, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Flais, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Michael J. Flais, 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. Michael J. Flais, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Ownership and Interest Payments

Biography

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