The 20 Best Diarrhea Doctors Near Me in collinsville, OK

Find the Top Diarrhea Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 121 doctor with experience in Diarrhea near collinsville, OK. Of these, 103 are Experienced, 9 are Advanced, 4 are Distinguished and 1 are Elite.

Location
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121 providers found
    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    Referral may be required

    Barnes-Jewish Hospital

    1 Barnes Jewish Hospital Plz, 
    Saint Louis, MO 
     (13.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Matthew Ciorba is a Gastroenterologist practicing medicine in Saint Louis, Missouri. Dr. Ciorba is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Viral Gastroenteritis, Colitis, Small Bowel Resection, and Colonoscopy. Dr. Ciorba is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    MDVIP - Maryville, IL

    2928 N Center St # 159, 
    Maryville, IL 
     (5.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Tibor Kopjas is a primary care provider, practicing in Internal Medicine in Maryville, Illinois. Dr. Kopjas is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Childhood Iron Deficiency Anemia, Glucocorticoid-Remediable Aldosteronism, and Hypertension. Dr. Kopjas is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine
    4000 N Illinois Ln, 
    Swansea, IL 
     (8.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Keith Moss is a primary care provider, practicing in Internal Medicine in Swansea, Illinois. Dr. Moss is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 33 other conditions, according to our data. His clinical expertise encompasses Benign Paroxysmal Positional Vertigo, Diverticular Disease, Coronary Heart Disease, and Heterozygous Familial Hypercholesterolemia (HeFH). Dr. Moss is currently accepting new patients.

    Learn about our expert tiers
    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    Referral may be required

    Office

    6812 State Route 162 Ste 204, 
    Maryville, IL 
     (5.1 miles away)
    Languages Spoken:
    English, Spanish
    Accepting New Patients
    Offers Telehealth

    Martin Tagle is a Gastroenterologist practicing medicine in Maryville, Illinois. Dr. Tagle is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Chronic Idiopathic Constipation (CIC), Gas Bloat Syndrome, Indigestion, and Helicobacter Pylori Infection. Dr. Tagle is currently accepting new patients.

    Advanced in Diarrhea
    Internal Medicine
    Advanced in Diarrhea
    Internal Medicine

    Office

    6812 State Route 162 Ste 204, 
    Maryville, IL 
     (5.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Mark Fedder is a primary care provider, practicing in Internal Medicine in Maryville, Illinois. Dr. Fedder is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Childhood Iron Deficiency Anemia, Swallowing Difficulty, Painful Swallowing, Endoscopy, and Colonoscopy. Dr. Fedder is currently accepting new patients.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    Referral may be required

    Office

    5023 N Illinois St, 
    Fairview Heights, IL 
     (7.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Shakeel Ahmed is a Gastroenterologist practicing medicine in Fairview Heights, Illinois. Dr. Ahmed is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Barrett Esophagus, Diverticular Disease, and Gastrointestinal Bleeding. Dr. Ahmed is currently accepting new patients.

    Experienced in Diarrhea
    Pediatric Gastroenterology | Pediatrics
    Experienced in Diarrhea
    Pediatric Gastroenterology | Pediatrics
    Referral may be required

    SSM Health Cardinal Glennon Pediatrics Specialty Services - Edwardsville

    3403 Anderson Healthcare Drive, 
    Edwardsville, IL 
     (9.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Aniruddh Setya is a Pediatric Gastroenterologist and a Pediatrics provider practicing medicine in Edwardsville, Illinois. Dr. Setya is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His clinical expertise encompasses Delayed Growth, Gastroparesis, Cannabinoid Hyperemesis Syndrome (CHS), Crohn's Disease, and Endoscopy. Dr. Setya is board certified in American Board Of Pediatrics , Missouri Dept Of Health/Narcotics&Dangerous Drugs , American Board Of Pediatrics/Gastroenterology , Illinois Department Of Financial & Professional Regulation , Missouri State Board Of Registration, and Drug Enforcement Administration . Dr. Setya is currently accepting new patients.

    Pediatric Gastroenterology | Pediatrics
    Pediatric Gastroenterology | Pediatrics
    Referral may be required

    SSM Health Cardinal Glennon Pediatrics Specialty Services - Edwardsville

    3403 Anderson Healthcare Drive, 
    Edwardsville, IL 
     (9.4 miles away)
    Languages Spoken:
    English

    Molly Barr is a Pediatric Gastroenterologist and a Pediatrics provider practicing medicine in Edwardsville, Illinois. Dr. Barr is rated as undefined provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Celiac Disease, Eosinophilic Esophagitis, Diarrhea, Encopresis, and Endoscopy. Dr. Barr is board certified in Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , Illinois Department Of Financial & Professional Regulation , and Missouri State Board Of Registration.

    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    Referral may be required

    Southern Illinois Endoscopy

    2810 Frank Scott Pkwy W Ste 716, 
    Belleville, IL 
     (9.6 miles away)
    Languages Spoken:
    English, Hindi
    Accepting New Patients

    Vasantha Pai is a Gastroenterologist practicing medicine in Belleville, Illinois. Dr. Pai is rated as an Advanced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 48 other conditions, according to our data. His clinical expertise encompasses Macroamylasemia, Anemia, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy. Dr. Pai is currently accepting new patients.

    Distinguished in Diarrhea
    Gastroenterology
    Distinguished in Diarrhea
    Gastroenterology
    Referral may be required

    VAMC St. Louis MO

    915 N Grand Blvd, 
    Saint Louis, MO 
     (11.1 miles away)
    Languages Spoken:
    English

    Gregory Sayuk is a Gastroenterologist practicing medicine in Saint Louis, Missouri. Dr. Sayuk is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Chronic Idiopathic Constipation (CIC), Diarrhea, Colostomy, and Colonoscopy.

    Distinguished in Diarrhea
    Internal Medicine
    Distinguished in Diarrhea
    Internal Medicine

    VAMC St. Louis MO

    915 N Grand Blvd, 
    Saint Louis, MO 
     (11.1 miles away)
    Languages Spoken:
    English

    James Fleckenstein is a primary care provider, practicing in Internal Medicine in Saint Louis, Missouri. Dr. Fleckenstein is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Diarrhea, Food Poisoning, Bacterial Gastroenteritis, and Malnutrition.

    Distinguished in Diarrhea
    Pediatric Gastroenterology
    Distinguished in Diarrhea
    Pediatric Gastroenterology
    Referral may be required

    St. Louis Children's Hospital

    1 Childrens Pl, 
    Saint Louis, MO 
     (13.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Phillip Tarr is a Pediatric Gastroenterologist practicing medicine in Saint Louis, Missouri. Dr. Tarr is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Diarrhea, Necrotizing Enterocolitis, Viral Gastroenteritis, Malnutrition, and Small Bowel Resection. Dr. Tarr is currently accepting new patients.

    Distinguished in Diarrhea
    Pediatrics
    Distinguished in Diarrhea
    Pediatrics
    Referral may be required

    Office

    1 Childrens Pl Ste 3S34, 
    Saint Louis, MO 
     (13.0 miles away)
    Languages Spoken:
    English

    Jie Li is a Pediatrics provider practicing medicine in Saint Louis, Missouri. Dr. Li is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. She is also highly rated in 65 other conditions, according to our data. Her clinical expertise encompasses Newborn Head Molding, Cerebral Hypoxia, Hypertension, Spinal Fusion, and Osteotomy.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Hshs Medical Group Family & Internal Medicine-Maryville

    2401 S Center St, 
    Maryville, IL 
     (5.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Paul Malcharek is a primary care provider, practicing in Family Medicine in Maryville, Illinois. Dr. Malcharek is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Prinzmetal's Variant Angina. Dr. Malcharek is currently accepting new patients.

    Experienced in Diarrhea
    Experienced in Diarrhea
    Referral may be required

    Office

    6812 State Route 162 Ste 204, 
    Maryville, IL 
     (5.1 miles away)
    Languages Spoken:
    English, Spanish
    Accepting New Patients

    Edmundo Rodriguez-Frias is a Gastroenterologist practicing medicine in Maryville, Illinois. Dr. Rodriguez-Frias is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Gastrointestinal Bleeding, Gastrectomy, and Endoscopy. Dr. Rodriguez-Frias is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Office

    20 Professional Park Dr Ste B, 
    Maryville, IL 
     (5.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Dean Schueler is a primary care provider, practicing in Family Medicine in Maryville, Illinois. Dr. Schueler is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Anemia, Low Sodium Level, Type 2 Diabetes (T2D), and Hypertension. Dr. Schueler is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Office

    6812 State Route 162 Ste 120, 
    Maryville, IL 
     (5.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Jason Barnett is a primary care provider, practicing in Family Medicine in Maryville, Illinois. Dr. Barnett is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Maturity Onset Diabetes of the Young, Childhood Iron Deficiency Anemia, Iron Deficiency Anemia, and Type 2 Diabetes (T2D). Dr. Barnett is currently accepting new patients.

    Experienced in Diarrhea
    Experienced in Diarrhea

    Office

    6812 State Route 162 Ste 120, 
    Maryville, IL 
     (5.1 miles away)
    Languages Spoken:
    English, Russian
    Accepting New Patients

    Sophia Rostovtseva is a primary care provider, practicing in Family Medicine in Maryville, Illinois. Dr. Rostovtseva is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 80 other conditions, according to our data. Her clinical expertise encompasses Van Maldergem Syndrome, Frank Ter Haar Syndrome, Duane-Radial Ray Syndrome, and Hennekam Syndrome. Dr. Rostovtseva is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    HSHS Medical Group Family Medicine Fairview Heights

    5 Ludwig Dr, 
    Fairview Heights, IL 
     (5.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Marc Mccleary is a primary care provider, practicing in Family Medicine in Fairview Heights, Illinois. Dr. Mccleary is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Tracheoesophageal Fistula, Chronic Cough, Glucocorticoid-Remediable Aldosteronism, and Hypertension. Dr. Mccleary is currently accepting new patients.

    Experienced in Diarrhea
    Experienced in Diarrhea

    Heartland Hospice

    333 Salem Pl Ste 165, 
    Fairview Heights, IL 
     (5.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Erin Fancher-Gagen is a primary care provider, practicing in Family Medicine in Fairview Heights, Illinois. Dr. Fancher-Gagen is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Cerebral Palsy, Anemia, Hypothyroidism, and Chronic Cough. Dr. Fancher-Gagen is currently accepting new patients.

    Showing 1-20 of 121

    Last Updated: 09/26/2026

    What is the definition of Diarrhea?

    Diarrhea is when you pass loose or watery stool.

    When should I see a Diarrhea doctor near collinsville, OK?

    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 Diarrhea doctor near collinsville, OK?

    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 Diarrhea doctors near collinsville, OK?

    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 Diarrhea doctors near collinsville, OK?

    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 Diarrhea doctor near collinsville, OK?

    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 Diarrhea doctor search results page. 

    Why is it important to get a second opinion from a different Diarrhea 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 Diarrhea doctor near collinsville, OK?

    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 Diarrhea 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 Diarrhea 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 Diarrhea doctors near collinsville, OK?

    Look for the filter feature on the left side of the Diarrhea 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 Diarrhea doctor that offers video calls?

    Look for the filter feature on the left-side of the Diarrhea 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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