The 20 Best Collagenous Colitis Doctors Near Me in South Dakota, US

Find the Top Collagenous Colitis Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 42 doctor with experience in Collagenous Colitis near South Dakota, US. Of these, 30 are Experienced, 11 are Advanced and 1 are Distinguished.

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42 providers found
    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Avera Gastroenterology — 69th & Louise

    6300 S Louise Ave, Suite 200, 
    Sioux Falls, SD 
    Languages Spoken:
    English
    Accepting New Patients

    R Lapp is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Lapp is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 44 other conditions, according to our data. His clinical expertise encompasses Esophagitis, Hereditary Pancreatitis, Acute Pancreatitis, Endoscopy, and Gastrectomy. Dr. Lapp is board certified in American Board Of Internal Medicine. Dr. Lapp is currently accepting new patients.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Avera Gastroenterology — 69th & Louise

    6300 S Louise Ave, Suite 200, 
    Sioux Falls, SD 
    Languages Spoken:
    English
    Accepting New Patients

    Bryan Feyen is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Feyen is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Colitis, Viral Gastroenteritis, Esophageal Varices, Endoscopy, and Gastrectomy. Dr. Feyen is board certified in American Board Of Gastroenterology And Hepatology. Dr. Feyen is currently accepting new patients.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Avera Gastroenterology — 69th & Louise

    6300 S Louise Ave, Suite 200, 
    Sioux Falls, SD 
    Languages Spoken:
    English
    Accepting New Patients

    Adam Smith is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Smith is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Colitis, Trichohepatoenteric Syndrome, and Diarrhea. Dr. Smith is board certified in American Board Of Internal Medicine (Internal Medicine, Specialty)        American Board Of Internal Medicine (Gastroenterology, Subspecialty). Dr. Smith is currently accepting new patients.

    Learn about our expert tiers
    Distinguished in Collagenous Colitis
    Gastroenterology
    Distinguished in Collagenous Colitis
    Gastroenterology
    Referral may be required

    The Endoscopy Center, LLC

    2820 Mount Rushmore Road, 
    Rapid City, SD 
    Languages Spoken:
    English
    Accepting New Patients

    Nathan Jaqua is a Gastroenterologist practicing medicine in Rapid City, South Dakota. Dr. Jaqua is rated as a Distinguished provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 31 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Gastrectomy, and Colonoscopy. Dr. Jaqua is board certified in American Board Of Internal Medicine: Gastroenterology. Dr. Jaqua is currently accepting new patients.

    Experienced in Collagenous Colitis
    Family Medicine
    Experienced in Collagenous Colitis
    Family Medicine

    Avera Medical Group McGreevy Family Medicine — 7th Ave

    1200 S 7th Ave, 
    Sioux Falls, SD 
    Languages Spoken:
    English
    Accepting New Patients

    Gregg Harvison is a primary care provider, practicing in Family Medicine in Sioux Falls, South Dakota. Dr. Harvison is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Chronic Obstructive Pulmonary Disease (COPD), Colorectal Cancer, Familial Colorectal Cancer, and Hypertension. Dr. Harvison is board certified in American Board Of Family Medicine. Dr. Harvison is currently accepting new patients.

    Experienced in Collagenous Colitis
    Internal Medicine
    Experienced in Collagenous Colitis
    Internal Medicine

    Sanford Internal Medicine Clinic

    1321 W. 22nd St., 
    Sioux Falls, SD 
    Experience:
    17+ years
    Languages Spoken:
    English
    Accepting New Patients

    Sara Ruter is a primary care provider, practicing in Internal Medicine in Sioux Falls, South Dakota. She has been practicing medicine for over 17 years. Dr. Ruter is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 32 other conditions, according to our data. Her clinical expertise encompasses Hypertension, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Type 1 Diabetes (T1D), and Tissue Biopsy. Dr. Ruter is board certified in American Board Of Internal Medicine. Dr. Ruter is currently accepting new patients.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Sanford Health Tower Road Clinic

    3024 Tower Road, 
    Rapid City, SD 
    Languages Spoken:
    English
    Accepting New Patients

    Katie Ingle is a Gastroenterologist practicing medicine in Rapid City, South Dakota. Dr. Ingle is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 20 other conditions, according to our data. Her clinical expertise encompasses Trichohepatoenteric Syndrome, Diarrhea, Gas Bloat Syndrome, and Bacterial Gastroenteritis. Dr. Ingle is board certified in American Nurses Credentialing Center: Family Nurse Practitioner. Dr. Ingle is currently accepting new patients.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Sanford Health Tower Road Clinic

    3024 Tower Road, 
    Rapid City, SD 
    Languages Spoken:
    English
    Accepting New Patients

    Emily Baertsch is a Gastroenterologist practicing medicine in Rapid City, South Dakota. Dr. Baertsch is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 22 other conditions, according to our data. Her clinical expertise encompasses Visceromegaly, Non-Alcoholic Fatty Liver Disease, Enlarged Liver, and Cirrhosis. Dr. Baertsch is currently accepting new patients.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Sanford USD Medical Center

    1305 W. 18th St., 
    Sioux Falls, SD 
    Languages Spoken:
    English, Spanish
    Accepting New Patients

    Jorge Gilbert is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Gilbert is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, and Endoscopy. Dr. Gilbert is board certified in American Board Of Internal Medicine: Gastroenterology. Dr. Gilbert is currently accepting new patients.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Avera Gastroenterology — 69th & Louise

    6300 S Louise Ave, Suite 200, 
    Sioux Falls, SD 
    Languages Spoken:
    English
    Accepting New Patients

    Cristina Jensen is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Jensen is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 33 other conditions, according to our data. Her clinical expertise encompasses Lower Esophageal Ring, Ulcerative Colitis, Crohn's Disease, Gastrectomy, and Endoscopy. Dr. Jensen is board certified in American Board Of Internal Medicine; American Board Of Gastroenterology. Dr. Jensen is currently accepting new patients.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Avera Gastroenterology — 69th & Louise

    6300 S Louise Ave, Suite 200, 
    Sioux Falls, SD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Angie Humpal is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Humpal is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 11 other conditions, according to our data. Her clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Ulcerative Colitis, Celiac Disease, and Crohn's Disease. Dr. Humpal is board certified in Certified By Board Of AANP Family Nurse Practitioner. Dr. Humpal is currently accepting new patients.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Sanford Center For Digestive Health

    1211 S. Grange Ave, 
    Sioux Falls, SD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Ryan Manson is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Manson is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Gastroesophageal Reflux Disease (GERD), Trichohepatoenteric Syndrome, and Diarrhea. Dr. Manson is board certified in American Nurses Credentialing Center: Family Nurse Practitioner. Dr. Manson is currently accepting new patients.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Avera Gastroenterology — 69th & Louise

    6300 S Louise Ave, Suite 200, 
    Sioux Falls, SD 
    Languages Spoken:
    English, Russian, Ukrainian
    Accepting New Patients
    Offers Telehealth

    Irena Chernatinski is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Chernatinski is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Ulcerative Colitis, Crohn's Disease, and Lymphocytic Colitis. Dr. Chernatinski is board certified in American Academy Of Nurse Practitioners. Dr. Chernatinski is currently accepting new patients.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Sanford USD Medical Center

    1305 W. 18th St., 
    Sioux Falls, SD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Brett Baloun is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Baloun is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Colitis, Crohn's Disease, Esophagitis, Colonoscopy, and Endoscopy. Dr. Baloun is board certified in American Board Of Internal Medicine: Gastroenterology. Dr. Baloun is currently accepting new patients.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    The Endoscopy Center, LLC

    2820 Mount Rushmore Road, 
    Rapid City, SD 
    Languages Spoken:
    English
    Accepting New Patients

    Blake Jones is a Gastroenterologist practicing medicine in Rapid City, South Dakota. Dr. Jones is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Gastrectomy, and Endoscopy. Dr. Jones is board certified in American Board Of Internal Medicine: Gastroenterology. Dr. Jones is currently accepting new patients.

    Advanced in Collagenous Colitis
    Internal Medicine
    Advanced in Collagenous Colitis
    Internal Medicine

    Mercy Weight Loss Center At Dakota Dunes

    705 N Sioux Point Rd, 
    North Sioux City, SD 
    Languages Spoken:
    English
    Accepting New Patients

    Jeffrey Michalak is a primary care provider, practicing in Internal Medicine in North Sioux City, South Dakota. Dr. Michalak is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Esophagitis, Gastroesophageal Reflux Disease (GERD), Gastric Dysmotility, Endoscopy, and Colonoscopy. Dr. Michalak is currently accepting new patients.

    Advanced in Collagenous Colitis
    Gastroenterology
    Advanced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Office

    101 Tower Rd Ste 100, 
    North Sioux City, SD 
    Languages Spoken:
    English
    Accepting New Patients

    Kevin Preston is a Gastroenterologist practicing medicine in North Sioux City, South Dakota. Dr. Preston is rated as an Advanced provider by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Painful Swallowing, Swallowing Difficulty, Endoscopy, and Gastrectomy. Dr. Preston is currently accepting new patients.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    The Endoscopy Center, LLC

    2820 Mount Rushmore Road, 
    Rapid City, SD 
    Languages Spoken:
    English, Russian
    Accepting New Patients

    Oksana Aleksenko is a Gastroenterologist practicing medicine in Rapid City, South Dakota. Dr. Aleksenko is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 26 other conditions, according to our data. Her clinical expertise encompasses Turcot Syndrome, Gardner Syndrome, Familial Adenomatous Polyposis, Endoscopy, and Colonoscopy. Dr. Aleksenko is board certified in American Board Of Internal Medicine: Gastroenterology. Dr. Aleksenko is currently accepting new patients.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Sanford Center For Digestive Health

    1211 S. Grange Ave, 
    Sioux Falls, SD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Stacy Rausch is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Rausch is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 6 other conditions, according to our data. Her clinical expertise encompasses Colitis, Irritable Bowel Syndrome (IBS), Crohn's Disease, and Lymphocytic Colitis. Dr. Rausch is board certified in American Academy Of Nurse Practitioners: Family. Dr. Rausch is currently accepting new patients.

    Experienced in Collagenous Colitis
    Gastroenterology
    Experienced in Collagenous Colitis
    Gastroenterology
    Referral may be required

    Avera Gastroenterology — 69th & Louise

    6300 S Louise Ave, Suite 200, 
    Sioux Falls, SD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Kelly Okerlund is a Gastroenterologist practicing medicine in Sioux Falls, South Dakota. Dr. Okerlund is rated as an Experienced provider by MediFind in the treatment of Collagenous Colitis. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Ulcerative Colitis, Lymphocytic Colitis, Crohn's Disease, and Celiac Disease. Dr. Okerlund is board certified in American Association Of Nurse Practitioners. Dr. Okerlund is currently accepting new patients.

    Showing 1-20 of 42

    Last Updated: 09/26/2026

    What is the definition of Collagenous Colitis?

    Collagenous colitis is a type of inflammatory bowel disease that affects the colon. It is a form of microscopic colitis, which causes chronic diarrhea. In all forms of microscopic colitis, the colon appears normal or almost normal on colonoscopy, but the inflammation is visible when a biopsy of the colon is examined under a microscope (hence its name). People with this disease usually have between four and nine watery bowel movements per day, but in rare cases may have more than fifteen. Various other symptoms relating to the gastrointestinal system or other body symptoms may also be present. The cause of Collagenous colitis is not known but it is thought to be multifactorial. This means that both genetic and environmental factors may interact to cause a person to develop the disease. The extent to which genes play a role is unclear, but familial cases have been described. Certain medications, such as NSAIDS and proton pump inhibitors, have been reported to cause or trigger the disease in some people. However, strong evidence directly linking these medications to the disease is still lacking.

    When should I see a Collagenous Colitis doctor in South Dakota, US?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a Collagenous Colitis doctor in South Dakota, US?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How does MediFind rank Collagenous Colitis doctors in South Dakota, US?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Collagenous Colitis doctors in South Dakota, US?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a Collagenous Colitis doctor in South Dakota, US?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Collagenous Colitis doctor search results page. 

    Why is it important to get a second opinion from a different Collagenous Colitis doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a Collagenous Colitis doctor in South Dakota, US?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Collagenous Colitis doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Collagenous Colitis doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Collagenous Colitis doctors in South Dakota, US?

    Look for the filter feature on the left side of the Collagenous Colitis doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a Collagenous Colitis doctor that offers video calls?

    Look for the filter feature on the left-side of the Collagenous Colitis doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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