The 20 Best Diarrhea Doctors Near Me in Bannockburn, IL

Find the Top Diarrhea Experts and Specialists

Last Updated: 02/22/2026

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MediFind found 466 doctor with experience in Diarrhea near Bannockburn, IL. Of these, 407 are Experienced, 58 are Advanced and 1 are Distinguished.

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466 providers found
    Andrew Mazulis
    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    Advocate Medical Group Gastroenterology

    825 S Milwaukee Ave, 
    Libertyville, IL 
     (7.1 miles away)
    Languages Spoken:
    English

    Andrew Mazulis is a Gastroenterologist in Libertyville, Illinois. Dr. Mazulis is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Sclerosing Mesenteritis, Viral Gastroenteritis, Gastrointestinal Bleeding, Colonoscopy, and Endoscopy.

    Alexander S. Tosiou
    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    800 N Westmoreland Rd Ste 100, 
    Lake Forest, IL 
     (2.9 miles away)
    Experience:
    33+ years
    Languages Spoken:
    English

    Alexander Tosiou is a Gastroenterologist in Lake Forest, Illinois. Dr. Tosiou has been practicing medicine for over 33 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Lower Esophageal Ring, Benign Esophageal Stricture, Diarrhea, Gastrectomy, and Endoscopy.

    Frank G. Martini
    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology
    800 N Westmoreland Rd Ste 100, 
    Lake Forest, IL 
     (2.9 miles away)
    Experience:
    44+ years
    Languages Spoken:
    English
    Offers Telehealth

    Frank Martini is a Gastroenterologist in Lake Forest, Illinois. Dr. Martini has been practicing medicine for over 44 years and is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diverticular Disease, Visceromegaly, Collagenous Colitis, Endoscopy, and Gastrectomy.

    Learn about our expert tiers
    Omar Khan
    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    Endeavor Health Medical Group

    757 Park Ave. West, Suite 2850, 
    Highland Park, IL 
     (3.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Omar Khan, MD, a gastroenterologist at Endeavor Health, specializes in inflammatory bowel disease, including Crohn’s disease, ulcerative colitis and hereditary colorectal cancer syndromes. He takes a personal, team-based approach to care, helping patients manage their condition through all stages of health. Dr. Khan is also passionate about advancing predictive tools to better match treatments with individual needs. Dr. Khan is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Hemorrhagic Proctocolitis, Ulcerative Colitis, Crohn's Disease, Gastrectomy, and Endoscopy.

    Lesley Rhee
    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    Endeavor Health Medical Group

    757 Park Ave. West, Suite 2850, 
    Highland Park, IL 
     (3.1 miles away)
    Languages Spoken:
    English

    Lesley Rhee, MD, a gastroenterologist at Endeavor Health, evaluates and treats conditions affecting the digestive system, including the esophagus, stomach, intestines and liver. She provides diagnostic procedures and therapeutic care to support patients in managing gastrointestinal health. Dr. Rhee is rated as an Advanced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Hemorrhoids, Endoscopy, and Gastrectomy.

    Joel Retsky
    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    Endeavor Health Medical Group

    1777 Green Bay Rd., Suite 201, 
    Highland Park, IL 
     (3.4 miles away)
    Languages Spoken:
    English, Hebrew
    Offers Telehealth

    Joel Retsky, MD, a gastroenterologist at Endeavor Health, specializes in inflammatory bowel disease, including Crohn’s disease and ulcerative colitis, as well as colonoscopy for colon cancer screening. He completed advanced training at the University of Chicago and served on faculty before joining community-based practice. Dr. Retsky is committed to delivering the same level of care he would want for his own family. Dr. Retsky is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Endoscopy, and Colonoscopy.

    Gene Chiao
    Advanced in Diarrhea
    Gastroenterology | Pharmacology
    Advanced in Diarrhea
    Gastroenterology | Pharmacology

    Comprehensive Gastrointestinal Health

    40 Skokie Blvd., Suite 110, 
    Northbrook, IL 
     (4.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Gene Chiao is a Pharmacologist and a Gastroenterologist in Northbrook, Illinois. Dr. Chiao is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Irritable Bowel Syndrome (IBS), Heartburn, Benign Esophageal Stricture, Colonoscopy, and Gastrectomy.

    Jeffrey Nathanson
    Advanced in Diarrhea
    Gastroenterology
    Advanced in Diarrhea
    Gastroenterology

    Comprehensive Gastrointestinal Health

    40 Skokie Blvd., Suite 110, 
    Northbrook, IL 
     (4.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jeffrey Nathanson is a Gastroenterologist in Northbrook, Illinois. Dr. Nathanson is rated as an Advanced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Irritable Bowel Syndrome (IBS), Heartburn, Gas Bloat Syndrome, Endoscopy, and Gastrectomy.

    Ronald A. Bloom
    Distinguished in Diarrhea
    Gastroenterology
    Distinguished in Diarrhea
    Gastroenterology

    Illinois Gastroenterology Group, LLC

    2501 Compass Rd, 
    Glenview, IL 
     (7.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Ronald Bloom is a Gastroenterologist in Glenview, Illinois. Dr. Bloom is rated as a Distinguished provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Diarrhea, Trichohepatoenteric Syndrome, Diverticular Disease, Endoscopy, and Gastrectomy.

    Aaron Cohn
    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology
    350 S Waukegan Rd Ste 100, 
    Deerfield, IL 
     (1.5 miles away)
    Experience:
    15+ years
    Languages Spoken:
    English
    Offers Telehealth

    Aaron Cohn is a Gastroenterologist in Deerfield, Illinois. Dr. Cohn has been practicing medicine for over 15 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Crohn's Disease, Esophagitis, Esophageal Varices, Colonoscopy, and Endoscopy.

    Asamad Soudagar
    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology
    800 N Westmoreland Rd Ste 100, 
    Lake Forest, IL 
     (2.9 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Asamad Soudagar is a Gastroenterologist in Lake Forest, Illinois. Dr. Soudagar has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Familial Pancreatic Cancer, Bile Duct Obstruction, Bile Duct Stricture, Gastrectomy, and Endoscopy.

    Igor Naryzhny
    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    Advocate Medical Group Gastroenterology

    255 Parkway Dr, 
    Lincolnshire, IL 
     (3.0 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Igor Naryzhny is a Gastroenterologist in Lincolnshire, Illinois. Dr. Naryzhny has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Painful Swallowing, Swallowing Difficulty, Ascites, Gastrectomy, and Colonoscopy.

    Jennifer Schott
    Experienced in Diarrhea
    Experienced in Diarrhea

    Endeavor Health Medical Group

    49 S. Waukegan Rd., Suite 100, 
    Deerfield, IL 
     (3.3 miles away)
    Languages Spoken:
    English, Spanish

    Jennifer Schott, MD, a general pediatrician at Endeavor Health, provides care for children from infancy through adolescence with a focus on treating the whole child—mind and body. Practicing in Deerfield, she supports families by creating a calm, joyful, and accessible care environment. Dr. Schott helps parents feel confident by listening carefully, addressing concerns with compassion, and encouraging a partnership-based approach to care. Dr. Schott is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Croup, Familial Short Stature (FSS), and Idiopathic Short Stature (ISS).

    Andrew Johnson
    Experienced in Diarrhea
    Experienced in Diarrhea

    Endeavor Health Medical Group

    49 S. Waukegan Rd., Suite 100, 
    Deerfield, IL 
     (3.3 miles away)
    Languages Spoken:
    English

    Andrew Johnson, MD, a general pediatrician at Endeavor Health, provides primary care for children of all ages. His clinical focus includes preventive care, chronic condition management and supporting healthy development. Dr. Johnson emphasizes a family-centered approach, involving caregivers in care decisions and advocating for improved access to high-quality pediatric care across the community. Dr. Johnson is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Croup, Delayed Growth, Familial Short Stature (FSS), and Idiopathic Short Stature (ISS).

    Shailesh Bajaj
    Experienced in Diarrhea
    Gastroenterology
    Experienced in Diarrhea
    Gastroenterology

    Endeavor Health Medical Group

    1777 Green Bay Rd., Suite 201, 
    Highland Park, IL 
     (3.4 miles away)
    Languages Spoken:
    English, Hindi
    Offers Telehealth

    Shailesh Bajaj, MD, a gastroenterologist at Endeavor Health, has been caring for patients for more than 17 years. He treats a wide range of digestive conditions, including cancers of the GI tract, and embraces new modalities that improve patient outcomes and comfort. Dr. Bajaj believes in treating every patient with the same care and respect he would offer his own family. Dr. Bajaj is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Cholangitis, Sclerosing Cholangitis, Bile Duct Obstruction, Gastrectomy, and Pancreatectomy.

    Matthew Tick
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine
    Experienced in Diarrhea
    Gastroenterology | Internal Medicine

    Endeavor Health Medical Group

    1777 Green Bay Rd., Suite 201, 
    Highland Park, IL 
     (3.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Matthew Tick, DO, a gastroenterologist at Endeavor Health, treats patients with a wide range of digestive disorders and embraces innovation to improve care. He values getting to know his patients and ensuring they feel heard, informed and empowered throughout their treatment journey. Dr. Tick is particularly interested in new GI therapies and technologies that offer more effective options for healing. Dr. Tick is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Hemorrhoids, Familial Adenomatous Polyposis, Turcot Syndrome, Endoscopy, and Colonoscopy.

    Richard Pervos
    Experienced in Diarrhea
    Experienced in Diarrhea

    Sanders Court Pediatrics, Ltd.

    1450 Busch Pkwy., Suite 130, 
    Buffalo Grove, IL 
     (3.5 miles away)
    Languages Spoken:
    English

    Richard Pervos is a Pediatrics provider in Buffalo Grove, Illinois. Dr. Pervos is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Croup, Multisystem Inflammatory Syndrome in Children (MIS-C), and Diarrhea.

    Jonathan Powell
    Experienced in Diarrhea
    Experienced in Diarrhea

    Sanders Court Pediatrics, Ltd.

    1450 Busch Pkwy., Suite 130, 
    Buffalo Grove, IL 
     (3.5 miles away)
    Languages Spoken:
    English

    Jonathan Powell is a Pediatrics provider in Buffalo Grove, Illinois. Dr. Powell is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top area of expertise is Diarrhea.

    Boris Lelchuk
    Experienced in Diarrhea
    Experienced in Diarrhea

    Children's Health Care, Ltd.

    201 E. Strong St., Suite 6, 
    Wheeling, IL 
     (4.1 miles away)
    Languages Spoken:
    English, Russian

    Boris Lelchuk is a Pediatrics provider in Wheeling, Illinois. Dr. Lelchuk is rated as an Experienced provider by MediFind in the treatment of Diarrhea. His top areas of expertise are Pertussis, Viral Gastroenteritis, Croup, and Scarlet Fever.

    Veronika Kroin
    Experienced in Diarrhea
    Experienced in Diarrhea

    Children's Health Care, Ltd.

    201 E. Strong St., Suite 6, 
    Wheeling, IL 
     (4.1 miles away)
    Languages Spoken:
    English, Portuguese, Spanish

    Veronika Kroin is a Pediatrics provider in Wheeling, Illinois. Dr. Kroin is rated as an Experienced provider by MediFind in the treatment of Diarrhea. Her top areas of expertise are Croup, Pertussis, Otitis Media with Effusion, and Viral Gastroenteritis.

    Showing 1-20 of 466

    Last Updated: 02/22/2026

    What is the definition of Diarrhea?

    Diarrhea is when you pass loose or watery stool.

    When should I see a Diarrhea doctor near Bannockburn, 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 Bannockburn, 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 Bannockburn, 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 Bannockburn, 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 Bannockburn, 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 Bannockburn, 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 Bannockburn, 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 

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