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Home > IA Providers > Bariatric Surgeons

Dr. Ryan Keegan Lehmann, DO, FACS

(517 Ratings)

Specializes in: Bariatric Surgery and General Surgery

A.T. Still University, Kirksville College of Osteopathic Medicine (2005)

Professional interests include: minimally invasive surgery, acid reflux (GERD), laparoscopic Roux-en-y gastric bypass, and more.

9040-a Fitzsimmons
Tacoma, WA 98431

(253) 968-2200

Dr. Ryan Keegan Lehmann, DO, FACS is a bariatric surgeon in Iowa City, IA specializing in bariatric surgery and general surgery. He graduated from A.T. Still University, Kirksville College of Osteopathic Medicine in 2005 and has 20 years of experience. Dr. Ryan Keegan Lehmann, DO, FACS is affiliated with University of Iowa, U.S. Department of Veterans Affairs and University of Iowa Health Care.

Office Locations

Address:

200 Hawkins Drive
Iowa City, IA 52242

Unable to locate address.

Address:

601 Highway 6 West Iowa City Iowa City Vamc (584)
IA 52246

Unable to locate address.

Address:

9040-a Fitzsimmons
Tacoma, WA 98431

Some issues Dr. Ryan Keegan Lehmann, DO, FACS can help you with:

Gallbladder Removal Surgery (Cholecystectomy)

The gallbladder is a small, pear-shaped organ on the right side of the upper abdomen, underneath the liver. Its purpose is to store bile, which is used to digest fat. Occasionally, the gallbladder can develop mineral stones, called gallstones. If they are large enough, gallstones can block the ducts in the gallbladder and cause swelling and infection. Gallstones can be treated with lifestyle changes and medication, but sometimes this is not enough. In these cases, it is best to remove the gallbladder before it can cause more serious problems. The surgical removal of the gallbladder is called a cholecystectomy.

Today, most gallbladder surgeries are done laparoscopically. Four tiny incisions are made in the abdomen, and small tools are inserted through these tiny incisions to perform the surgery. Because the incisions are much smaller, recovery time is much faster with this type of surgery. Patients are usually discharged from the hospital the same day. Sometimes, open surgery is used to remove a gallbladder. In this type of surgery, a cut about six inches long is made in the upper right abdomen. After the gallbladder is removed, it is sutured or stapled closed. With open surgery, patients usually stay in the hospital for two to three days to recover before they are discharged.

Gallbladder removal, like any surgery, carries some risks, such as bleeding, infection, or the development of blood clots. Doctors will tell patients how to minimize their risk for complications. After surgery, patients are advised to avoid strenuous activity for several days. They should not soak in a bath until their sutures or staples have been removed. Patients should wash hands before touching the area around the incision. It will take a couple of days until patients feel like themselves again and a few weeks until their scar has healed and faded.

Weight Loss Surgery (Bariatric Surgery)

Bariatric or weight-loss surgery is a surgical procedure performed to help significantly obese patients lose weight when more traditional methods, such as dieting and exercise, have not helped. Depending on the type, these surgeries change the gastrointestinal tract to limit how much food can be eaten and also change how food is absorbed by the body. Of the various bariatric surgeries available, the most common is gastric bypass.

By far the most common of the gastric bypass surgeries is called Roux-en-Y. During this surgery, part of the stomach and small intestine are detached from the gastrointestinal tract, in order to make the tract smaller. The surgeon divides the stomach into two parts. The working stomach, at the end of the esophagus, is now tiny - only the size of a walnut. This makes patients feel full after eating a small amount of food. Then the small intestine is also divided, and after bypassing a section of the small intestine to reduce food absorption, the intestine is attached to the small stomach pouch. The patient now has a working stomach and intestine like before, only much smaller.

Because gastric bypass is used to treat extreme obesity, it can reduce the risk of some of the problems associated with obesity. Gastric bypass can help treat or reduce the risk for such conditions as heart disease, high blood pressure, sleep apnea, and type 2 diabetes. However, it is a major surgery and also carries risks itself. Any surgery can lead to infection, bleeding, or blood clots, and weight loss surgery in particular carries risks of leaks in the gastrointestinal system, malnutrition, bowel obstructions, and vomiting.

Typically patients are considered candidates for gastric bypass surgery if they have a BMI greater than 40, or sometimes if they have a BMI between 35 and 40 but are suffering from obesity-related illnesses such as diabetes. The outlook is generally good, with most patients losing between 50-75% of their excess weight in 1-2 years. However, patients must follow strict diet guidelines so that the stomach can heal, starting with no food at all, then followed by a liquid diet for some time. For many severely obese patients who have tried strict diets before without success, gastric bypass surgery is the tool that allows them to finally achieve their weight loss and health goals.

doctor visit	63

**Gender**
Male	29
Female	75

**Ethnicity**
Non-Hispanic White	64
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	68

Hypertension	75
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	31
Depression	61
Chronic Kidney Disease	33
Asthma	38
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	16
Chronic Obstructive Pulmonary Disease	31
Diabetes	45
Dementia	15
Cancer	0

doctor visit	101

**Gender**
Male	23
Female	76

**Ethnicity**
Non-Hispanic White	56
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	64

Hypertension	75
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	28
Depression	53
Chronic Kidney Disease	30
Asthma	22
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	20
Chronic Obstructive Pulmonary Disease	26
Diabetes	59
Dementia	16
Cancer	0

doctor visit	92

**Gender**
Male	26
Female	72

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

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	67

Hypertension	75
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	32
Depression	60
Chronic Kidney Disease	40
Asthma	19
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	29
Chronic Obstructive Pulmonary Disease	23
Diabetes	53
Dementia	19
Cancer	0

doctor visit	55

**Gender**
Male	30
Female	36

**Age**
From 65 to 74	28
From 75 to 84	19
85 and over	0
Less than 65	0

Hypertension	75
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	44
Depression	41
Chronic Kidney Disease	56
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	29
Chronic Obstructive Pulmonary Disease	17
Diabetes	42
Dementia	0
Cancer	20

doctor visit	43

**Gender**
Male	40
Female	34

**Age**
From 65 to 74	37
From 75 to 84	0
85 and over	0
Less than 65	22

Hypertension	73
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	28
Depression	34
Chronic Kidney Disease	34
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	22
Chronic Obstructive Pulmonary Disease	15
Diabetes	26
Dementia	0
Cancer	0

doctor visit	54

doctor visit	9

Average Medicare Procedure Volume From 2016 - 2022

Volume of procedures performed by Dr. Ryan Keegan Lehmann, DO, FACS for Medicare patients.

doctor visit	62

Average Medicare Patient Data From 2016 - 2022

Information about Medicare patients treated by Dr. Ryan Keegan Lehmann, DO, FACS.

**Gender**
Male	14
Female	29

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	18
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
85 and over	0
75 to 84	1
Less than 65	22
65 to 74	6

Average of Total of Conditions of Medicare patients treated by Dr. Ryan Keegan Lehmann, DO, FACS From 2016 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Ryan Keegan Lehmann, DO, FACS treated were hypertension, high cholesterol, depression and diabetes.

Hypertension	37
High Cholesterol	27
Stroke	0
Ischemic Heart Disease	16
Depression	24
Chronic Kidney Disease	19
Asthma	7
Osteoporosis	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	11
Diabetes	22
Atrial Fibrillation	0
Dementia	5
Cancer	2

Education & Training

Dr. Ryan Keegan Lehmann, DO, FACS graduated from A.T. Still University, Kirksville College of Osteopathic Medicine in 2005. He has a state license in Missouri.

Medical School: A.T. Still University, Kirksville College of Osteopathic Medicine (2005)

Licensed In: Missouri

Affiliations & Hospitals

Dr. Ryan Keegan Lehmann, DO, FACS is associated with these hospitals and organizations:

University of Iowa

U.S. Department of Veterans Affairs

University of Iowa Health Care

Ratings & Reviews

Dr. Ryan Keegan Lehmann, DO, FACS has an exceptional overall rating with an average of 4.82 out of 5 stars based on 517 ratings. We collect ratings and reviews of Dr. Ryan Keegan Lehmann, DO, FACS from all over the web to help you find the right in Iowa City, IA.

4.82

Overall Rating

(517 Ratings)

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General Payments

These charts describe general payments received by Dr. Ryan Keegan Lehmann, DO, FACS. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Intuitive Surgical, Inc.	$12,038 Da Vinci Surgical System $8,038	DAVINCI XI $4,000
W. L. Gore & Associates, Inc.	$1,796 SEAMGUARD Bioabsorbable Staple Line Reinforcement $1,585	SEAMGUARD Bioabsorbable Staple $211
Apollo Endosurgery US Inc	$1,219 Orbera $950	LapBand $258	Overstitch $11
Ethicon Inc.	$1,187 STRATAFIX $1,187
Medical Device Business Services, Inc.	$729 HARMONIC Product Family $717	ECHELON FLEX Stapler $12
Other	$1,998 PHASIX $244	ECHELON FLEX Stapler $239	PROXIMATE Family of Open Mechanical Staplers $149	ReliaTack $141	ECHELON ENDOPATH Stapler $122	Other $1,103

**Types of Payments**
Education	$9,032
Travel and Lodging	$5,349
Food and Beverage	$4,334
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$252

Biography

Dr. Ryan Lehmann sees patients in Iowa City, IA and Des Moines, IA. His medical specialties are general surgery and bariatric surgery. Dr. Lehmann attended medical school at A.T. Still University, Kirksville College of Osteopathic Medicine. His areas of expertise include the following: laparoscopic sleeve gastrectomy, gallbladder problems, and hernia surgery. He has a 5.0 out of 5 star average patient rating. His professional affiliations include the University of Iowa Health Care and U.S. Department of Veterans Affairs.