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Dr. Gary Lee Gerstner, MD

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Specializes in: Adult Gastroenterology

1111 Delafield Street Suite 212
Waukesha, WI 53188

(262) 544-8622

Dr. Gary Lee Gerstner, MD is a gastroenterologist in Waukesha, WI specializing in adult gastroenterology.

Office Locations

1111 Delafield Street Suite 212
Waukesha, WI 53188

(262) 544-8622

(262) 544-8630

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3811 Spring Street #202
Racine, WI 53405

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2012 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

balloon dilation	37
diagnostic procedures	545
doctor visit	66
esophageal dilation	37
gastrointestinal procedures	627
hospital care	241
inpatient care	241
minimally invasive procedures	627
removal of lesion (e.g. growth)	545

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2013 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

balloon dilation	45
diagnostic procedures	532
doctor visit	50
esophageal dilation	45
gastrointestinal procedures	616
hospital care	103
inpatient care	103
minimally invasive procedures	616
removal of lesion (e.g. growth)	532

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	171
Female	197

**Ethnicity**
Non-Hispanic White	343
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	181
From 75 to 84	110
85 and over	54
Less than 65	23

Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD in 2013

Hypertension	66
High Cholesterol	60
Stroke	5
Ischemic Heart Disease	43
Depression	24
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	7
Atrial Fibrilation	16
Heart Failure	23
Chronic Obstructive Pulmonary Disease	17
Diabetes	24
Dementia	14
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2014 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

balloon dilation	43
diagnostic procedures	418
doctor visit	76
esophageal dilation	43
gastrointestinal procedures	510
hospital care	24
inpatient care	24
minimally invasive procedures	510
removal of lesion (e.g. growth)	418

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	162
Female	163

**Ethnicity**
Non-Hispanic White	314
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	116
85 and over	45
Less than 65	28

Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD in 2014

Hypertension	63
High Cholesterol	60
Stroke	6
Ischemic Heart Disease	41
Depression	21
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	5
Atrial Fibrilation	21
Heart Failure	22
Chronic Obstructive Pulmonary Disease	15
Diabetes	26
Dementia	11
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2015 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

diagnostic procedures	151
gastrointestinal procedures	151
minimally invasive procedures	151
removal of lesion (e.g. growth)	151

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	108
Female	110

**Age**
From 65 to 74	94
From 75 to 84	66
85 and over	30
Less than 65	28

Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD in 2015

Hypertension	61
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	31
Depression	25
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	17
Heart Failure	13
Chronic Obstructive Pulmonary Disease	17
Diabetes	23
Dementia	18
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2016 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

balloon dilation	27
diagnostic procedures	193
doctor visit	32
esophageal dilation	27
gastrointestinal procedures	241
minimally invasive procedures	241
removal of lesion (e.g. growth)	193

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	75
Female	107

**Ethnicity**
Non-Hispanic White	158
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	54
85 and over	18
Less than 65	33

Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD in 2016

Hypertension	74
High Cholesterol	67
Stroke	7
Ischemic Heart Disease	31
Depression	32
Chronic Kidney Disease	41
Asthma	21
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	20
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	14
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2017 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

balloon dilation	39
diagnostic procedures	308
doctor visit	58
esophageal dilation	39
gastrointestinal procedures	374
hospital care	11
inpatient care	11
minimally invasive procedures	374
removal of lesion (e.g. growth)	308

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	108
Female	143

**Ethnicity**
Non-Hispanic White	223
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	127
From 75 to 84	67
85 and over	24
Less than 65	33

Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD in 2017

Hypertension	74
High Cholesterol	67
Stroke	7
Ischemic Heart Disease	37
Depression	29
Chronic Kidney Disease	46
Asthma	10
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	25
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	13
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

balloon dilation	51
diagnostic procedures	338
doctor visit	36
esophageal dilation	51
gastrointestinal procedures	417
minimally invasive procedures	417
removal of lesion (e.g. growth)	338

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	98
Female	141

**Ethnicity**
Non-Hispanic White	206
Black	11
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	62
85 and over	18
Less than 65	36

Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD in 2018

Hypertension	73
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	33
Depression	27
Chronic Kidney Disease	36
Asthma	8
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

balloon dilation	57
diagnostic procedures	316
doctor visit	94
esophageal dilation	57
gastrointestinal procedures	393
minimally invasive procedures	393
removal of lesion (e.g. growth)	316

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	111
Female	132

**Ethnicity**
Non-Hispanic White	220
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	69
85 and over	19
Less than 65	34

Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD in 2019

Hypertension	75
High Cholesterol	72
Stroke	0
Ischemic Heart Disease	32
Depression	33
Chronic Kidney Disease	34
Asthma	14
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	7
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

balloon dilation	38
diagnostic procedures	210
doctor visit	90
esophageal dilation	38
gastrointestinal procedures	273
minimally invasive procedures	273
removal of lesion (e.g. growth)	210

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	81
Female	90

**Ethnicity**
Non-Hispanic White	156
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	56
85 and over	16
Less than 65	19

Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD in 2020

Hypertension	75
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	33
Depression	27
Chronic Kidney Disease	32
Asthma	11
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	26
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

balloon dilation	38
diagnostic procedures	274
doctor visit	92
esophageal dilation	38
gastrointestinal procedures	329
minimally invasive procedures	329
removal of lesion (e.g. growth)	274

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	82
Female	115

**Ethnicity**
Non-Hispanic White	182
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	59
85 and over	13
Less than 65	12

Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD in 2021

Hypertension	70
High Cholesterol	72
Stroke	0
Ischemic Heart Disease	39
Depression	24
Chronic Kidney Disease	30
Asthma	12
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	27
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

balloon dilation	24
diagnostic procedures	191
doctor visit	68
esophageal dilation	24
gastrointestinal procedures	233
minimally invasive procedures	233
removal of lesion (e.g. growth)	191

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	73
Female	99

**Ethnicity**
Non-Hispanic White	161
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	54
85 and over	11
Less than 65	11

Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD in 2022

Hypertension	74
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	30
Depression	17
Chronic Kidney Disease	24
Asthma	9
Osteoperosis	13
Atrial Fibrilation	17
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	28
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gary Lee Gerstner, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gary Lee Gerstner, MD treated as a gastroenterologist in Waukesha, WI were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

balloon dilation	39
diagnostic procedures	316
doctor visit	66
esophageal dilation	39
gastrointestinal procedures	378
hospital care	94
inpatient care	94
minimally invasive procedures	378
removal of lesion (e.g. growth)	316

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gary Lee Gerstner, MD.

**Gender**
Male	97
Female	117

**Ethnicity**
Black / African American	2
Asian / Pacific Islander	0
Non-Hispanic White	178
Hispanic	2
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	64
85 and over	22
Less than 65	23
65 to 74	104

Average of Total of Conditions of Medicare patients treated by Dr. Gary Lee Gerstner, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Gary Lee Gerstner, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	64
High Cholesterol	61
Stroke	3
Ischemic Heart Disease	31
Depression	23
Chronic Kidney Disease	28
Asthma	9
Osteoporosis	7
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	25
Atrial Fibrillation	14
Cancer	12
Dementia	9

Education & Training

He has a state license in Wisconsin.

Licensed In: Wisconsin

Ratings & Reviews

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General Payments

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

**Payments by Company**
AbbVie, Inc.	$1,139 Humira $423	Mavyret $240	Viekira $117	Creon $44	Technivie $31	Other $284
Pfizer Inc.	$469 XELJANZ $352	INFLECTRA $117
Janssen Biotech, Inc.	$379 STELARA $183	SIMPONI ARIA $139	SIMPONI $57
Janssen Scientific Affairs, LLC	$306 REMICADE $189	STELARA $117
AbbVie Inc.	$252 Skyrizi $120	Rinvoq $120	Creon $12
Other	$1,422 ENTYVIO $217	LINZESS $199	Cimzia $154	XIFAXAN $153	ZEPOSIA $125	Other $574

**Types of Payments**
Food and Beverage	$3,864
Education	$103

Research Payments

Dr. Gary Lee Gerstner, MD has received 1 research payments totaling $5,625.

Biography

Dr. Gary Gerstner sees patients in Waukesha, WI. His medical specialty is adult gastroenterology. Dr. Gerstner obtained a license to practice in Wisconsin.