The 20 Best Diarrhea Doctors Near Me in o fallon, IL

Find the Top Diarrhea Experts and Specialists

Last Updated: 09/26/2026

Save doctors for later
Sign Up
Not sure about your diagnosis?
Check Your Symptoms
Already have a doctor?
Find A Second Opinion

MediFind found 47 doctor with experience in Diarrhea near o fallon, IL. Of these, 42 are Experienced, 4 are Advanced and 1 are Elite.

Location
LocationClose
47 providers found
    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine
    4000 N Illinois Ln, 
    Swansea, IL 
     (4.4 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.

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

    Office

    5023 N Illinois St, 
    Fairview Heights, IL 
     (4.2 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
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Office

    1418 Cross St Ste 250, 
    O Fallon, IL 
     (0.6 miles away)
    Languages Spoken:
    English, Finnish, Spanish

    Beatriz Ramos-Pardo is a primary care provider, practicing in Internal Medicine in O Fallon, Illinois. Dr. Ramos-Pardo is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 11 other conditions, according to our data. Her clinical expertise encompasses Hypothyroidism, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Learn about our expert tiers
    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    St Elizabeths Hospital Of The Hospital Sisters Of The Third Order

    1 Saint Elizabeth Blvd, 
    O Fallon, IL 
     (1.2 miles away)
    Languages Spoken:
    English

    Ann Hagedorn is a primary care provider, practicing in Internal Medicine in O Fallon, Illinois. Dr. Hagedorn is rated as an Experienced provider by MediFind in the treatment of Diarrhea. She is also highly rated in 13 other conditions, according to our data. Her clinical expertise encompasses Hypothyroidism, Obesity in Children, Renovascular Hypertension, Ureteroscopy, and Coronary Artery Bypass Graft (CABG).

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    St Elizabeths Hospital Of The Hospital Sisters Of The Third Order

    1 Saint Elizabeth Blvd, 
    O Fallon, IL 
     (1.2 miles away)
    Languages Spoken:
    English

    Katherine Lazet is a primary care provider, practicing in Family Medicine in O Fallon, Illinois. Dr. Lazet is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Uvulitis, Ludwig Angina, Shingles, and Periorbital Cellulitis.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    PC Associates LLC

    1414 Cross St Ste 230, 
    O Fallon, IL 
     (1.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jennifer Neville is a primary care provider, practicing in Internal Medicine in O Fallon, Illinois. Dr. Neville is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Nephrosclerosis, Renovascular Hypertension, Hypertension, and Familial Hypertension.

    Experienced in Diarrhea
    Experienced in Diarrhea
    Referral may be required

    Office

    310 W Losey St, 
    Scott Air Force Base, IL 
     (4.0 miles away)
    Languages Spoken:
    English

    Taylor Meyers is a Pediatrics provider practicing medicine in Scott Air Force Base, Illinois. Dr. Meyers is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her clinical expertise encompasses Diarrhea and Infant Respiratory Distress Syndrome.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    HSHS Medical Group Family Medicine Fairview Heights

    5 Ludwig Dr, 
    Fairview Heights, IL 
     (4.1 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
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    MDVIP - Maryville, IL

    2928 N Center St # 159, 
    Maryville, IL 
     (9.6 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.

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

    Southern Illinois Endoscopy

    2810 Frank Scott Pkwy W Ste 716, 
    Belleville, IL 
     (8.9 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.

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

    Office

    6812 State Route 162 Ste 204, 
    Maryville, IL 
     (9.6 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 
     (9.6 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.

    Experienced in Diarrhea
    Experienced in Diarrhea

    Heartland Hospice

    333 Salem Pl Ste 165, 
    Fairview Heights, IL 
     (5.1 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.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Goldenberg & Associates

    5003 N Illinois St # 2, 
    Fairview Heights, IL 
     (5.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Shabbir Shaikh is a primary care provider, practicing in Internal Medicine in Fairview Heights, Illinois. Dr. Shaikh is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Hypertension, Glucocorticoid-Remediable Aldosteronism, Gastrostomy, and Endoscopy. Dr. Shaikh is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Michael Guignon M.D. P.C.

    4550 Memorial Dr Ste 280, 
    Belleville, IL 
     (6.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Anuj Sharma is a primary care provider, practicing in Internal Medicine in Belleville, Illinois. Dr. Sharma is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His clinical expertise encompasses Chronic Erosive Gastritis, Swallowing Difficulty, Painful Swallowing, Endoscopy, and Colonoscopy. Dr. Sharma is currently accepting new patients.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Anesthesia Services Associates PLLC

    4972 Benchmark Centre Dr Ste 400, 
    Swansea, IL 
     (6.2 miles away)
    Languages Spoken:
    English, Arabic, Japanese, Mandarin
    Accepting New Patients

    Mounir Shenouda is a primary care provider, practicing in Internal Medicine in Swansea, Illinois. Dr. Shenouda is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Anemia, Breast Cancer, Familial Hypertension, and Hypertension. Dr. Shenouda is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    PC Associates LLC

    3701 Memorial Dr, 
    Belleville, IL 
     (6.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    James Wade is a primary care provider, practicing in Family Medicine in Belleville, Illinois. Dr. Wade is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 38 other conditions, according to our data. His clinical expertise encompasses Hypothyroidism, Obesity in Children, Lung Metastases, and Visceromegaly. Dr. Wade is currently accepting new patients.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Memorial Care Center

    4315 Memorial Dr, 
    Belleville, IL 
     (6.6 miles away)
    Languages Spoken:
    English

    Michael Nash is a primary care provider, practicing in Family Medicine in Belleville, Illinois. Dr. Nash is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Necrosis, Lung Metastases, Diverticular Disease, and Dementia.

    Experienced in Diarrhea
    Internal Medicine
    Experienced in Diarrhea
    Internal Medicine

    Memorial Hospital Belleville

    4500 Memorial Dr, 
    Belleville, IL 
     (6.6 miles away)
    Languages Spoken:
    English

    Stephen Slowik is a primary care provider, practicing in Internal Medicine in Belleville, Illinois. Dr. Slowik is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 41 other conditions, according to our data. His clinical expertise encompasses Acute Cystitis, End-Stage Renal Disease (ESRD), Hypothermia, Urinary Tract Infection (UTI), and Pacemaker Implantation.

    Experienced in Diarrhea
    Family Medicine
    Experienced in Diarrhea
    Family Medicine

    Memorial Hospital Belleville

    4500 Memorial Dr, 
    Belleville, IL 
     (6.6 miles away)
    Languages Spoken:
    English

    Matthew Moslener is a primary care provider, practicing in Family Medicine in Belleville, Illinois. Dr. Moslener is rated as an Experienced provider by MediFind in the treatment of Diarrhea. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Chronic Obstructive Pulmonary Disease (COPD), Lung Metastases, Atypical Pneumonia, and Hospital-Acquired Pneumonia.

    Showing 1-20 of 47

    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 o fallon, IL?

    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 o fallon, IL?

    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 o fallon, IL?

    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 o fallon, IL?

    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 o fallon, IL?

    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 o fallon, IL?

    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 o fallon, IL?

    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 

    Read more about our Content Policy.