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Dr. Henning Gerke, MD

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Specializes in: Adult Gastroenterology

University of Freiburg Faculty of Medicine (1996)

Professional interests include: gastrointestinal problems (digestive disorders)

1236 East Rusholme Suite 150
Davenport, IA 52803

(319) 356-4901

Dr. Henning Gerke, MD is a gastroenterologist in Davenport, IA specializing in adult gastroenterology. He graduated from University of Freiburg Faculty of Medicine in 1996 and has 30 years of experience. Dr. Henning Gerke, MD is affiliated with MercyOne.

Office Locations

1236 East Rusholme Suite 150
Davenport, IA 52803

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200 Hawkins Drive
Iowa City, IA 52242

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Some issues Dr. Henning Gerke, MD can help you with:

Gastrointestinal Problems (Digestive Disorders)

The gastrointestinal system, or GI tract, is the name given to a collection of organs that work together to digest food. These organs fit together in a long tube, running from the mouth to the anus, and include the esophagus, stomach, and intestines, among others. With so many parts working together, complicated by today's busy lifestyles and diets, digestive problems are common. As many as 1 in 3 Americans have a digestive or GI disorder. There are a huge variety of digestive problems, but the most common are IBS, constipation, GERD, hemorrhoids, and ulcers.

IBS, or irritable bowel syndrome, happens when the muscles surrounding the colon contract too easily or frequently. The result is abdominal pain, cramps, diarrhea or constipation, gas and bloating. IBS attacks can often be brought on by specific triggers, so a key part of treatment is learning which foods trigger IBS attacks and avoiding them. Treatment also includes exercise, avoiding stress, and medications if needed.

Constipation, or large, hard, or infrequent stools, happens to everyone at some point. It can be caused by a disruption in routine or food, or by eating a diet without many fresh fruits and vegetables. Although it is uncomfortable, constipation is common and usually not serious, but it can sometimes become chronic. Adding fiber to the diet, exercising, and taking medications may help.

GERD, or gastroesophageal reflux disease, is a severe form of chronic heartburn where stomach acid spills back up into the esophagus. Left untreated, the acid may even eat away at the esophagus and cause serious damage. Treatment includes changing the diet to avoid trigger foods, losing weight if needed, medications, or even surgery.

Hemorrhoids are blood vessels around the rectum that become irritated, swollen or torn while straining during a bowel movement. They are most often caused by constipation, but can also be caused by pregnancy, diarrhea, or simply a genetic predisposition towards hemorrhoids. Treatment involves first treating any constipation issues, then keeping the area clean and soothed until it has healed. If these measures are ineffective, surgery is sometimes used.

Peptic ulcers are sores or spots of inflammation in the lining of the stomach or close to the stomach in the small intestine. Usually this area is coated with a protective lining that shields the tissue from the strong stomach acid, but a break in the lining can let acid in, causing the sores. It used to be thought that stress caused ulcers, but now it is known that is not the case. Most often, they are caused by an infection by H. pylori bacteria, but ulcers can also be caused by alcohol abuse or overuse of aspirin, ibuprofen, naproxen, or other NSAIDS. The symptoms of an ulcer are pain, hunger, nausea, and fatigue.

Gastrointestinal problems, perhaps more than any other area, are markedly affected by lifestyle. Many disorders can be prevented or treated at least in part by eating a healthy diet high in fiber, exercising regularly, drinking enough water, and limiting alcohol intake. Still, the frequency of digestive disorders means that even the healthiest person can be affected by them. Anyone who notices blood in their stool, experiences abdominal pain, unexplained weight loss, or any significant change in bowel movements should see a doctor.

In The News

“UIHC gastroenterologist Henning Gerke said the traditional procedure is less controlled and "sometimes risky.”—"Physicians adopt rare procedure", The Daily Iowan, March 2014

Noteworthy Medicare Patient Procedures Performed by Dr. Henning Gerke, MD in 2023

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

Top 5%

By Volume:

EGD with endoscopic mucosal resection

EGD with esophageal dilation

In 2023, Dr. Henning Gerke, MD performed more EGD with endoscopic mucosal resection, and EGD with esophageal dilation procedures for Medicare patients than 95% of providers in related specialties within Iowa.

Top 25%

By Volume:

EGD with biopsy

EGD with lesion removal

ultrasound

In 2012, Dr. Henning Gerke, MD performed more EGD with biopsy, EGD with lesion removal, and ultrasound (sonogram) procedures for Medicare patients than 75% of providers in related specialties within Iowa.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2012 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

aspiration	66
diagnostic procedures	342
doctor visit	177
esophageal dilation	76
gastrointestinal procedures	560
hospital care	42
image guided procedures	66
inpatient care	42
minimally invasive procedures	560
minor procedures	66
preventive care	26
removal of lesion (e.g. growth)	342
ultrasound (sonogram)	127

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2013 were gastrointestinal procedures, minimally invasive procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

aspiration	69
diagnostic procedures	318
doctor visit	156
esophageal dilation	103
gastrointestinal procedures	627
hospital care	94
image guided procedures	69
inpatient care	94
minimally invasive procedures	627
minor procedures	69
preventive care	35
pyloric dilation	15
removal of lesion (e.g. growth)	318
ultrasound (sonogram)	141

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	316
Female	260

**Ethnicity**
Non-Hispanic White	543
Black	17
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	254
From 75 to 84	179
85 and over	43
Less than 65	100

Conditions of Medicare patients treated by Dr. Henning Gerke, MD in 2013

Hypertension	70
High Cholesterol	55
Stroke	6
Ischemic Heart Disease	40
Depression	24
Chronic Kidney Disease	37
Asthma	9
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	24
Chronic Obstructive Pulmonary Disease	24
Diabetes	38
Dementia	9
Cancer	18

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2014 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

aspiration	89
diagnostic procedures	351
doctor visit	149
esophageal dilation	80
gastrointestinal procedures	676
hospital care	123
image guided procedures	89
inpatient care	123
minimally invasive procedures	676
minor procedures	89
preventive care	33
pyloric dilation	31
removal of lesion (e.g. growth)	384
ultrasound (sonogram)	144

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	346
Female	323

**Ethnicity**
Non-Hispanic White	636
Black	13
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	281
From 75 to 84	206
85 and over	51
Less than 65	131

Conditions of Medicare patients treated by Dr. Henning Gerke, MD in 2014

Hypertension	67
High Cholesterol	52
Stroke	5
Ischemic Heart Disease	38
Depression	27
Chronic Kidney Disease	35
Asthma	9
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	22
Chronic Obstructive Pulmonary Disease	22
Diabetes	34
Dementia	6
Cancer	16

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2015 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

aspiration	58
diagnostic procedures	370
doctor visit	111
esophageal dilation	90
gastrointestinal procedures	667
hospital care	11
image guided procedures	58
inpatient care	11
minimally invasive procedures	667
minor procedures	58
preventive care	36
pyloric dilation	24
removal of lesion (e.g. growth)	419
ultrasound (sonogram)	119

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	566
Female	534

**Ethnicity**
Non-Hispanic White	1042
Black	28
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	500
From 75 to 84	308
85 and over	84
Less than 65	208

Conditions of Medicare patients treated by Dr. Henning Gerke, MD in 2015

Hypertension	65
High Cholesterol	51
Stroke	6
Ischemic Heart Disease	38
Depression	25
Chronic Kidney Disease	33
Asthma	12
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	20
Chronic Obstructive Pulmonary Disease	20
Diabetes	33
Dementia	5
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2016 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

anastomosis	11
aspiration	52
catheterization	11
diagnostic procedures	299
doctor visit	88
esophageal dilation	86
gastrointestinal procedures	612
hospital care	84
image guided procedures	52
injections	13
inpatient care	84
minimally invasive procedures	612
minor procedures	52
preventive care	27
pyloric dilation	13
removal of lesion (e.g. growth)	334
ultrasound (sonogram)	95

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	316
Female	287

**Ethnicity**
Non-Hispanic White	563
Black	16
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	264
From 75 to 84	174
85 and over	51
Less than 65	114

Conditions of Medicare patients treated by Dr. Henning Gerke, MD in 2016

Hypertension	67
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	37
Depression	29
Chronic Kidney Disease	41
Asthma	25
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	22
Diabetes	34
Dementia	11
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2017 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

aspiration	72
balloon dilation	12
diagnostic procedures	310
doctor visit	86
esophageal dilation	79
foreign body removal	13
gastrointestinal procedures	555
hospital care	46
image guided procedures	72
injections	13
inpatient care	46
minimally invasive procedures	555
minor procedures	72
preventive care	28
removal of lesion (e.g. growth)	339
ultrasound (sonogram)	109

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	271
Female	254

**Ethnicity**
Non-Hispanic White	493
Black	12
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	223
From 75 to 84	172
85 and over	38
Less than 65	92

Conditions of Medicare patients treated by Dr. Henning Gerke, MD in 2017

Hypertension	69
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	41
Depression	27
Chronic Kidney Disease	40
Asthma	10
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	24
Diabetes	32
Dementia	9
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2018 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

aspiration	59
diagnostic procedures	268
doctor visit	95
esophageal dilation	111
foreign body removal	12
gastrointestinal procedures	568
hospital care	27
image guided procedures	59
inpatient care	27
minimally invasive procedures	568
minor procedures	59
preventive care	28
removal of lesion (e.g. growth)	300
ultrasound (sonogram)	107

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	274
Female	246

**Ethnicity**
Non-Hispanic White	488
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	255
From 75 to 84	157
85 and over	31
Less than 65	77

Conditions of Medicare patients treated by Dr. Henning Gerke, MD in 2018

Hypertension	69
High Cholesterol	57
Stroke	3
Ischemic Heart Disease	36
Depression	26
Chronic Kidney Disease	38
Asthma	10
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	22
Diabetes	29
Dementia	9
Cancer	17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2019 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

aspiration	52
diagnostic procedures	285
doctor visit	69
esophageal dilation	109
gastrointestinal procedures	589
hospital care	20
image guided procedures	52
injections	13
inpatient care	20
minimally invasive procedures	589
minor procedures	52
preventive care	11
removal of lesion (e.g. growth)	337
ultrasound (sonogram)	110

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	291
Female	254

**Ethnicity**
Non-Hispanic White	514
Black	12
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	281
From 75 to 84	163
85 and over	37
Less than 65	64

Conditions of Medicare patients treated by Dr. Henning Gerke, MD in 2019

Hypertension	70
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	36
Depression	26
Chronic Kidney Disease	42
Asthma	7
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	24
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	7
Cancer	18

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2020 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

aspiration	46
diagnostic procedures	232
doctor visit	39
esophageal dilation	130
foreign body removal	14
gastrointestinal procedures	494
hospital care	33
image guided procedures	46
inpatient care	33
minimally invasive procedures	494
minor procedures	46
preventive care	17
pyloric dilation	13
removal of lesion (e.g. growth)	249
ultrasound (sonogram)	80

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	237
Female	198

**Ethnicity**
Non-Hispanic White	407
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	235
From 75 to 84	115
85 and over	24
Less than 65	61

Conditions of Medicare patients treated by Dr. Henning Gerke, MD in 2020

Hypertension	69
High Cholesterol	59
Stroke	6
Ischemic Heart Disease	40
Depression	28
Chronic Kidney Disease	44
Asthma	9
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	23
Chronic Obstructive Pulmonary Disease	21
Diabetes	35
Dementia	8
Cancer	17

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2021 were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

aspiration	30
diagnostic procedures	219
doctor visit	57
esophageal dilation	130
gastrointestinal procedures	516
hospital care	52
image guided procedures	30
inpatient care	52
minimally invasive procedures	516
minor procedures	30
preventive care	35
pyloric dilation	24
removal of lesion (e.g. growth)	243
ultrasound (sonogram)	65

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	269
Female	243

**Ethnicity**
Non-Hispanic White	483
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	260
From 75 to 84	148
85 and over	33
Less than 65	71

Conditions of Medicare patients treated by Dr. Henning Gerke, MD in 2021

Hypertension	69
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	39
Depression	29
Chronic Kidney Disease	43
Asthma	8
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	25
Chronic Obstructive Pulmonary Disease	19
Diabetes	30
Dementia	9
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

aspiration	31
diagnostic procedures	228
doctor visit	87
esophageal dilation	118
gastrointestinal procedures	513
hospital care	46
image guided procedures	31
inpatient care	46
minimally invasive procedures	513
minor procedures	31
preventive care	38
removal of lesion (e.g. growth)	256
ultrasound (sonogram)	55

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	245
Female	242

**Ethnicity**
Non-Hispanic White	458
Black	0
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	234
From 75 to 84	163
85 and over	37
Less than 65	53

Conditions of Medicare patients treated by Dr. Henning Gerke, MD in 2022

Hypertension	75
High Cholesterol	71
Stroke	9
Ischemic Heart Disease	30
Depression	23
Chronic Kidney Disease	23
Asthma	9
Osteoperosis	14
Atrial Fibrilation	20
Heart Failure	18
Chronic Obstructive Pulmonary Disease	23
Diabetes	33
Dementia	4
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Henning Gerke, MD for Medicare patients.

The highest averages for the top procedures that Dr. Henning Gerke, MD treated as a gastroenterologist in Davenport, IA were gastrointestinal procedures, minimally invasive procedures, removal of lesion (e.g. growth) and diagnostic procedures.

anastomosis	11
aspiration	56
balloon dilation	12
catheterization	11
diagnostic procedures	292
doctor visit	101
esophageal dilation	101
foreign body removal	13
gastrointestinal procedures	579
hospital care	52
image guided procedures	56
injections	13
inpatient care	52
minimally invasive procedures	579
minor procedures	56
preventive care	28
pyloric dilation	20
removal of lesion (e.g. growth)	320
ultrasound (sonogram)	104

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Henning Gerke, MD.

**Gender**
Male	284
Female	258

**Ethnicity**
Black / African American	11
Asian / Pacific Islander	0
Non-Hispanic White	511
Native American / Alaskan Native	0
Hispanic	0
Other	2

**Age**
75 to 84	162
85 and over	39
Less than 65	88
65 to 74	253

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

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

Hypertension	62
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	34
Depression	24
Chronic Kidney Disease	34
Asthma	9
Osteoporosis	7
Heart Failure	20
Chronic Obstructive Pulmonary Disease	19
Diabetes	30
Atrial Fibrillation	14
Dementia	7
Cancer	15

Education & Training

Dr. Henning Gerke, MD graduated from University of Freiburg Faculty of Medicine in 1996. He has a state license in Iowa.

Medical School: University of Freiburg Faculty of Medicine (1996)

Licensed In: Iowa

Affiliations & Hospitals

Dr. Henning Gerke, MD is associated with these hospitals and organizations:

MercyOne

Ratings & Reviews

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General Payments

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

**Payments by Company**
CONMED Corporation	$134 CONMED Biliary $134
Ethicon Inc.	$109 LINX Reflux Management System $109

**Types of Payments**
Food and Beverage	$243

Biography

Dr. Henning Gerke is a specialist in adult gastroenterology. His clinical interests include gastrointestinal problems (digestive disorders). Dr. Gerke is a graduate of the University of Hamburg Faculty of Medicine and the University of Freiburg Faculty of Medicine. His professional affiliations include MercyOne and the University of Iowa. MercyOne reports that Dr. Gerke is accepting new patients at his office in Davenport, IA.