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Dr. Gregory A. Holzhei, DO

(Gregory Holzhei, DO)

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Specializes in: Family Medicine

Des Moines University, College of Osteopathic Medicine (1998)

901 S. Oakland Street Suite 201
St. Johns, MI 48879

(989) 224-2338

Dr. Gregory A. Holzhei, DO is a family medicine practitioner in St. Johns, MI specializing in family medicine. He graduated from Des Moines University, College of Osteopathic Medicine in 1998 and has 28 years of experience. Dr. Gregory A. Holzhei, DO is affiliated with University of Michigan Health-Sparrow and St. Johns Primary Care | University of Michigan Health-Sparrow.

Office Locations

901 S. Oakland Street Suite 201
St. Johns, MI 48879

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI during 2012 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

doctor visit	460
lab tests	15
preventive care	83
vaccines	83

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI during 2013 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

doctor visit	588
lab tests	43
preventive care	122
vaccines	109

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Male	98
Female	139

**Age**
From 65 to 74	96
From 75 to 84	79
85 and over	18
Less than 65	44

Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO in 2013

Hypertension	65
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	26
Depression	27
Chronic Kidney Disease	15
Asthma	13
Osteoperosis	5
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI during 2014 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

doctor visit	623
lab tests	46
preventive care	144
vaccines	144

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Male	90
Female	126

**Age**
From 65 to 74	95
From 75 to 84	72
85 and over	17
Less than 65	32

Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO in 2014

Hypertension	66
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	24
Depression	23
Chronic Kidney Disease	12
Asthma	9
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	15
Diabetes	24
Dementia	8
Cancer	7

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI during 2015 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

doctor visit	717
lab tests	65
preventive care	163
vaccines	152

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Male	254
Female	304

**Ethnicity**
Non-Hispanic White	534
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	250
From 75 to 84	150
85 and over	66
Less than 65	92

Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO in 2015

Hypertension	69
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	23
Depression	21
Chronic Kidney Disease	16
Asthma	11
Osteoperosis	5
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Dementia	8
Cancer	6

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI during 2016 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

diabetes management	14
doctor visit	777
lab tests	72
preventive care	136
vaccines	110

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Male	135
Female	169

**Ethnicity**
Non-Hispanic White	285
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	137
From 75 to 84	82
85 and over	29
Less than 65	56

Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO in 2016

Hypertension	71
High Cholesterol	48
Stroke	5
Ischemic Heart Disease	26
Depression	24
Chronic Kidney Disease	26
Asthma	17
Osteoperosis	6
Atrial Fibrilation	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	12
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI during 2017 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

diabetes management	20
doctor visit	897
lab tests	85
preventive care	184
vaccines	151

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Male	153
Female	197

**Ethnicity**
Non-Hispanic White	322
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	144
From 75 to 84	103
85 and over	37
Less than 65	66

Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO in 2017

Hypertension	71
High Cholesterol	45
Stroke	4
Ischemic Heart Disease	24
Depression	25
Chronic Kidney Disease	24
Asthma	12
Osteoperosis	7
Atrial Fibrilation	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI during 2018 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

diabetes management	23
doctor visit	788
lab tests	65
preventive care	199
vaccines	176

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Male	121
Female	179

**Ethnicity**
Non-Hispanic White	275
Black	0
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	135
From 75 to 84	84
85 and over	31
Less than 65	50

Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO in 2018

Hypertension	70
High Cholesterol	45
Stroke	5
Ischemic Heart Disease	22
Depression	25
Chronic Kidney Disease	25
Asthma	11
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	15
Diabetes	32
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI during 2019 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

diabetes management	16
doctor visit	751
lab tests	50
preventive care	232
vaccines	154

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Male	144
Female	206

**Ethnicity**
Non-Hispanic White	321
Black	0
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	96
85 and over	40
Less than 65	60

Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO in 2019

Hypertension	66
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	21
Depression	27
Chronic Kidney Disease	26
Asthma	11
Osteoperosis	6
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI during 2020 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

doctor visit	568
lab tests	26
preventive care	79
vaccines	79

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Male	110
Female	167

**Ethnicity**
Non-Hispanic White	256
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	78
85 and over	28
Less than 65	48

Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO in 2020

Hypertension	72
High Cholesterol	52
Stroke	5
Ischemic Heart Disease	24
Depression	22
Chronic Kidney Disease	28
Asthma	12
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	15
Diabetes	34
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI during 2021 were preventive care, lab tests, vaccines and diabetes management.

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

diabetes management	17
doctor visit	564
lab tests	31
preventive care	40
vaccines	23

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Male	309
Female	454

**Ethnicity**
Non-Hispanic White	725
Black	0
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	261
From 75 to 84	310
85 and over	119
Less than 65	73

Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO in 2021

Hypertension	35
High Cholesterol	29
Stroke	3
Ischemic Heart Disease	14
Depression	12
Chronic Kidney Disease	16
Asthma	5
Osteoperosis	5
Atrial Fibrilation	6
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	18
Dementia	6
Cancer	6

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

doctor visit	184

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Male	67
Female	81

**Age**
From 65 to 74	59
From 75 to 84	45
85 and over	21
Less than 65	23

Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO in 2022

Hypertension	73
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	20
Depression	21
Chronic Kidney Disease	18
Asthma	19
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	16
Chronic Obstructive Pulmonary Disease	16
Diabetes	35
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gregory A. Holzhei, DO for Medicare patients.

The highest averages for the top procedures that Dr. Gregory A. Holzhei, DO treated as a family medicine practitioner in St. Johns, MI were preventive care, vaccines, lab tests and diabetes management.

diabetes management	18
doctor visit	628
lab tests	49
preventive care	138
vaccines	118

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gregory A. Holzhei, DO.

**Gender**
Female	183
Male	134

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	247
Hispanic	5
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	36
75 to 84	99
Less than 65	49
65 to 74	132

Average of Total of Conditions of Medicare patients treated by Dr. Gregory A. Holzhei, DO From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Gregory A. Holzhei, DO treated were hypertension, high cholesterol, diabetes and depression.

Hypertension	59
High Cholesterol	43
Stroke	2
Ischemic Heart Disease	20
Depression	20
Chronic Kidney Disease	18
Asthma	10
Osteoporosis	6
Heart Failure	11
Chronic Obstructive Pulmonary Disease	12
Diabetes	26
Atrial Fibrillation	8
Dementia	7
Cancer	7

Education & Training

Dr. Gregory A. Holzhei, DO graduated from Des Moines University, College of Osteopathic Medicine in 1998. He completed residency at Garden City Hospital. He is certified by the American Osteopathic Board of Family Medicine - FM, OMT and has a state license in Michigan.

Medical School: Des Moines University, College of Osteopathic Medicine (1998)

Residency: Garden City Hospital (2001)

Board Certification: American Osteopathic Board of Family Medicine - FM, OMT

Licensed In: Michigan

Affiliations & Hospitals

Dr. Gregory A. Holzhei, DO is associated with these hospitals and organizations:

University of Michigan Health-Sparrow

St. Johns Primary Care | University of Michigan Health-Sparrow

Ratings & Reviews

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General Payments

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

**Payments by Company**
Allergan, Inc.	$28 DALVANCE $28
Cubist Pharmaceuticals Inc	$27 Anti-Bacterial $27
Actavis Pharma Inc	$16 TEFLARO $16
Novo Nordisk Inc	$11 Tresiba $11

**Types of Payments**
Food and Beverage	$55
Education	$27

Biography

Dr. Gregory Holzhei's specialty is family medicine. After completing medical school at Des Moines University, College of Osteopathic Medicine, he performed his residency at Garden City Hospital. He is affiliated with the University of Michigan Health-Sparrow.