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Dr. John Alan Demask, DO

(Dr. John Demask, D.O.)

(No ratings)

Specializes in: Family Medicine

Midwestern University, Chicago College of Osteopathic Medicine (1993)

201 S Wabena Avenue
Minooka, IL 60447

(815) 467-1518

Dr. John Alan Demask, DO is a family medicine practitioner in Minooka, IL specializing in family medicine. He graduated from Midwestern University, Chicago College of Osteopathic Medicine in 1993 and has 33 years of experience.

Office Locations

201 S Wabena Avenue
Minooka, IL 60447

(815) 467-1518

(815) 467-7419

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2012 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	204
doctor visit	544

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2013 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	196
doctor visit	551

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	114
Female	117

**Age**
From 65 to 74	119
From 75 to 84	61
85 and over	26
Less than 65	25

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2013

Hypertension	59
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	25
Depression	8
Chronic Kidney Disease	13
Asthma	0
Osteoperosis	0
Atrial Fibrilation	6
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	22
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2014 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	201
doctor visit	545

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	121
Female	107

**Age**
From 65 to 74	115
From 75 to 84	62
85 and over	22
Less than 65	29

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2014

Hypertension	63
High Cholesterol	38
Stroke	0
Ischemic Heart Disease	23
Depression	8
Chronic Kidney Disease	16
Asthma	0
Osteoperosis	0
Atrial Fibrilation	5
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	23
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2015 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	178
doctor visit	547

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	232
Female	230

**Age**
From 65 to 74	246
From 75 to 84	114
85 and over	46
Less than 65	56

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2015

Hypertension	61
High Cholesterol	41
Stroke	0
Ischemic Heart Disease	23
Depression	10
Chronic Kidney Disease	18
Asthma	5
Osteoperosis	5
Atrial Fibrilation	6
Heart Failure	11
Chronic Obstructive Pulmonary Disease	7
Diabetes	20
Dementia	5
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2016 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	165
doctor visit	489

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	127
Female	103

**Ethnicity**
Non-Hispanic White	217
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	63
85 and over	27
Less than 65	25

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2016

Hypertension	64
High Cholesterol	31
Stroke	0
Ischemic Heart Disease	26
Depression	9
Chronic Kidney Disease	19
Asthma	8
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	24
Dementia	7
Cancer	7

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2017 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	184
doctor visit	497

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	126
Female	96

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

**Age**
From 65 to 74	115
From 75 to 84	52
85 and over	27
Less than 65	28

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2017

Hypertension	61
High Cholesterol	28
Stroke	0
Ischemic Heart Disease	27
Depression	9
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	0
Atrial Fibrilation	6
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	24
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2018 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	179
doctor visit	491

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	130
Female	107

**Ethnicity**
Non-Hispanic White	221
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	61
85 and over	22
Less than 65	29

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2018

Hypertension	58
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	27
Depression	8
Chronic Kidney Disease	15
Asthma	0
Osteoperosis	0
Atrial Fibrilation	6
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	22
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2019 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	184
doctor visit	523

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	121
Female	108

**Ethnicity**
Non-Hispanic White	216
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	61
85 and over	21
Less than 65	24

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2019

Hypertension	58
High Cholesterol	35
Stroke	0
Ischemic Heart Disease	27
Depression	10
Chronic Kidney Disease	18
Asthma	0
Osteoperosis	0
Atrial Fibrilation	5
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	25
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2020 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	188
doctor visit	450

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	127
Female	104

**Ethnicity**
Non-Hispanic White	218
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	124
From 75 to 84	64
85 and over	25
Less than 65	18

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2020

Hypertension	55
High Cholesterol	34
Stroke	0
Ischemic Heart Disease	26
Depression	8
Chronic Kidney Disease	16
Asthma	0
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	23
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2021 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	239
doctor visit	527

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	142
Female	112

**Ethnicity**
Non-Hispanic White	241
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	135
From 75 to 84	79
85 and over	21
Less than 65	19

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2021

Hypertension	60
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	24
Depression	8
Chronic Kidney Disease	17
Asthma	0
Osteoperosis	0
Atrial Fibrilation	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	20
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL during 2022 were blood draw.

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

blood draw	207
doctor visit	495

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	138
Female	110

**Ethnicity**
Non-Hispanic White	235
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	133
From 75 to 84	72
85 and over	23
Less than 65	20

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2022

Hypertension	69
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	17
Depression	6
Chronic Kidney Disease	10
Asthma	0
Osteoperosis	5
Atrial Fibrilation	12
Heart Failure	8
Chronic Obstructive Pulmonary Disease	11
Diabetes	20
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John Alan Demask, DO for Medicare patients.

The highest averages for the top procedures that Dr. John Alan Demask, DO treated as a family medicine practitioner in Minooka, IL were blood draw.

blood draw	193
doctor visit	514

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John Alan Demask, DO.

**Gender**
Male	125
Female	108

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	141
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	62
85 and over	23
Less than 65	24
65 to 74	122

Average of Total of Conditions of Medicare patients treated by Dr. John Alan Demask, DO From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. John Alan Demask, DO treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	55
High Cholesterol	33
Stroke	0
Ischemic Heart Disease	22
Depression	7
Chronic Kidney Disease	14
Asthma	1
Osteoporosis	0
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	20
Atrial Fibrillation	6
Dementia	2
Cancer	8

Education & Training

Dr. John Alan Demask, DO graduated from Midwestern University, Chicago College of Osteopathic Medicine in 1993. He has a state license in Illinois.

Medical School: Midwestern University, Chicago College of Osteopathic Medicine (1993)

Licensed In: Illinois

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. John Alan Demask, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
GlaxoSmithKline, LLC.	$11 BEXSERO $11

**Types of Payments**
Food and Beverage	$11

Biography

Dr. John Demask is a specialist in family medicine in Minooka, IL. He studied medicine at Midwestern University, Chicago College of Osteopathic Medicine.

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Dr. John Alan Demask, DO

Office Locations

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. John Alan Demask, DO in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Alan Demask, DO in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Alan Demask, DO 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. John Alan Demask, DO From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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