The 20 Best Celiac Disease Doctors Near Me in o fallon, MO

Find the Top Celiac Disease Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 18 doctor with experience in Celiac Disease near o fallon, MO. Of these, 12 are Experienced, 2 are Elite and 1 are Advanced.

Location
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18 providers found
    Experienced in Celiac Disease
    Experienced in Celiac Disease
    Referral may be required

    SSM Health Medical Group

    300 Medical Plaza, Suite 310, 
    Lake St. Louis, MO 
     (4.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Elizabeth Marsicano is a Gastroenterologist practicing medicine in Lake St. Louis, Missouri. Dr. Marsicano is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Ascites, Diverticular Disease, Hemorrhoids, Endoscopy, and Gastrectomy. Dr. Marsicano is board certified in American Board Of Internal Medicine/Gastroenterology , Missouri Dept Of Health/Narcotics&Dangerous Drugs , Missouri State Board Of Registration, American Board Of Internal Medicine , and Drug Enforcement Administration . Dr. Marsicano is currently accepting new patients.

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

    SSM Health Cardinal Glennon Pediatrics Specialty Services

    301 Caledonia Parkway, Suite 220, 
    O Fallon, MO 
     (4.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Helen Pappa is a Pediatric Gastroenterologist and a Pediatrics provider practicing medicine in O Fallon, Missouri. Dr. Pappa is rated as undefined provider by MediFind in the treatment of Celiac Disease. Her clinical expertise encompasses Viral Gastroenteritis, Crohn's Disease, Malnutrition, Ulcerative Colitis, and Endoscopy. Dr. Pappa 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. Pappa is currently accepting new patients.

    Experienced in Celiac Disease
    Gastroenterology
    Experienced in Celiac Disease
    Gastroenterology
    Referral may be required

    Office

    5551 Winghaven Blvd Ste 250, 
    O Fallon, MO 
     (4.4 miles away)
    Languages Spoken:
    English, Spanish
    Accepting New Patients

    David Lotsoff is a Gastroenterologist practicing medicine in O Fallon, Missouri. Dr. Lotsoff is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Lower Esophageal Ring, Benign Esophageal Stricture, Painful Swallowing, Gastrectomy, and Gastrostomy. Dr. Lotsoff is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Celiac Disease
    Gastroenterology
    Experienced in Celiac Disease
    Gastroenterology
    Referral may be required

    Office

    2 Progress Point Pkwy Ste 206, 
    O Fallon, MO 
     (4.4 miles away)
    Languages Spoken:
    English, Arabic
    Accepting New Patients

    Chaudhary Khan is a Gastroenterologist practicing medicine in O Fallon, Missouri. Dr. Khan is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Esophagitis, Heartburn, Gastrectomy, and Colonoscopy. Dr. Khan is currently accepting new patients.

    Experienced in Celiac Disease
    Internal Medicine
    Experienced in Celiac Disease
    Internal Medicine

    Office

    200 Brevco Plz Ste 208, 
    Lake Saint Louis, MO 
     (5.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Michael Zerega is a primary care provider, practicing in Internal Medicine in Lake Saint Louis, Missouri. Dr. Zerega is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Collagenous Colitis, Colitis, Diverticular Disease, Gastrostomy, and Endoscopy. Dr. Zerega is currently accepting new patients.

    Advanced in Celiac Disease
    Gastroenterology | Hepatology
    Advanced in Celiac Disease
    Gastroenterology | Hepatology
    Referral may be required

    SSM Health Medical Group

    12277 DePaul Drive, Suite 500, 
    Bridgeton, MO 
     (14.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Patrick Mcdonough is a Gastroenterologist and a Hepatologist practicing medicine in Bridgeton, Missouri. Dr. Mcdonough is rated as an Advanced provider by MediFind in the treatment of Celiac Disease. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Ascites, Painful Swallowing, Gastrostomy, and Gastrectomy. Dr. Mcdonough is board certified in Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration. Dr. Mcdonough is currently accepting new patients.

    Experienced in Celiac Disease
    Gastroenterology
    Experienced in Celiac Disease
    Gastroenterology
    Referral may be required

    SSM Health Medical Group

    400 First Capitol Drive, 
    St. Charles, MO 
     (13.1 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English
    Accepting New Patients

    David Westrich is a Gastroenterologist practicing medicine in St. Charles, Missouri. He has been practicing medicine for over 10 years. Dr. Westrich is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. His clinical expertise encompasses Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, and Irritable Bowel Syndrome (IBS). Dr. Westrich is board certified in American Board Of Internal Medicine/Gastroenterology , Missouri Dept Of Health/Narcotics&Dangerous Drugs , Missouri State Board Of Registration, American Board Of Internal Medicine , and Drug Enforcement Administration . Dr. Westrich is currently accepting new patients.

    Experienced in Celiac Disease
    Gastroenterology
    Experienced in Celiac Disease
    Gastroenterology
    Referral may be required

    Gateway Gastroenterology Inc.

    121 St Luke’s Center Drive Ste 406, 
    Chesterfield, MO 
     (14.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Richard Riegel is a Gastroenterologist practicing medicine in Chesterfield, Missouri. Dr. Riegel is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Heartburn, Swallowing Difficulty, Painful Swallowing, Endoscopy, and Gastrectomy. Dr. Riegel is board certified in Gastroenterology.

    Gastroenterology
    Gastroenterology
    Referral may be required

    Gateway Gastroenterology Inc.

    121 St Luke’s Center Drive Ste 406, 
    Chesterfield, MO 
     (14.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jeffrey Mathews is a Gastroenterologist practicing medicine in Chesterfield, Missouri. Dr. Mathews is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Swallowing Difficulty, Painful Swallowing, Barrett Esophagus, Gastrectomy, and Endoscopy. Dr. Mathews is board certified in Gastroenterology.

    Gastroenterology
    Gastroenterology
    Referral may be required

    Gateway Gastroenterology Inc.

    121 St Luke’s Center Drive Ste 406, 
    Chesterfield, MO 
     (14.3 miles away)
    Languages Spoken:
    English

    Jason Haas is a Gastroenterologist practicing medicine in Chesterfield, Missouri. Dr. Haas is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Painful Swallowing, Swallowing Difficulty, Endoscopy, and Gastrectomy. Dr. Haas is board certified in Gastroenterology.

    Gastroenterology
    Gastroenterology
    Referral may be required

    Gateway Gastroenterology Inc.

    121 St Luke’s Center Drive Ste 406, 
    Chesterfield, MO 
     (14.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Brian Mcmorrow is a Gastroenterologist practicing medicine in Chesterfield, Missouri. Dr. Mcmorrow is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Esophagitis, Gastric Dysmotility, Gastrectomy, and Endoscopy. Dr. Mcmorrow is board certified in Gastroenterology.

    Gastroenterology
    Gastroenterology
    Referral may be required

    Gateway Gastroenterology Inc.

    121 St Luke’s Center Drive Ste 406, 
    Chesterfield, MO 
     (14.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Rajeev Ramgopal practices practicing medicine in Chesterfield, Missouri. Dr. Ramgopal is rated as undefined provider by MediFind in the treatment of Celiac Disease. His clinical expertise encompasses Diarrhea, Trichohepatoenteric Syndrome, Familial Adenomatous Polyposis, Endoscopy, and Colonoscopy.

    Experienced in Celiac Disease
    Internal Medicine
    Experienced in Celiac Disease
    Internal Medicine

    Mercy Aco Clinical Services Inc.

    15740 South Outer 40 Rd, 
    Chesterfield, MO 
     (13.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Margaret Reiker is a primary care provider, practicing in Internal Medicine in Chesterfield, Missouri. Dr. Reiker is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Obesity in Children, Crohn's Disease, Hypothyroidism, and High Cholesterol. Dr. Reiker is currently accepting new patients.

    Experienced in Celiac Disease
    Internal Medicine
    Experienced in Celiac Disease
    Internal Medicine

    St. Luke's Internal Medicine - DOC A

    121 Saint Lukes Center Dr Ste 504, 
    Chesterfield, MO 
     (14.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Sarah Lord is a primary care provider, practicing in Internal Medicine in Chesterfield, Missouri. Dr. Lord is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. Her clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Celiac Disease. Dr. Lord is currently accepting new patients.

    Experienced in Celiac Disease
    Gastroenterology
    Experienced in Celiac Disease
    Gastroenterology
    Referral may be required

    Office

    121 Saint Lukes Center Dr Ste 406, 
    Chesterfield, MO 
     (14.3 miles away)
    Languages Spoken:
    English

    Fred Williams is a Gastroenterologist practicing medicine in Chesterfield, Missouri. Dr. Williams is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Swallowing Difficulty, Painful Swallowing, Viral Gastroenteritis, Endoscopy, and Colonoscopy.

    Experienced in Celiac Disease
    Internal Medicine
    Experienced in Celiac Disease
    Internal Medicine

    St. Luke's Internal Medicine Of Chesterfield

    222 S Woods Mill Rd Ste 650, 
    Chesterfield, MO 
     (14.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Nadya Ajanee is a primary care provider, practicing in Internal Medicine in Chesterfield, Missouri. Dr. Ajanee is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Postmenopausal Osteoporosis, Osteoporosis, Hypothyroidism, and Premature Ovarian Failure. Dr. Ajanee is currently accepting new patients.

    Experienced in Celiac Disease
    Gastroenterology
    Experienced in Celiac Disease
    Gastroenterology
    Referral may be required

    St. Lukes Urology LLC

    226 S Woods Mill Rd Ste 52W, 
    Chesterfield, MO 
     (14.3 miles away)
    Languages Spoken:
    English

    Bruce Witte is a Gastroenterologist practicing medicine in Chesterfield, Missouri. Dr. Witte is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. His clinical expertise encompasses Viral Gastroenteritis, Colitis, Painful Swallowing, Endoscopy, and Gastrostomy.

    Experienced in Celiac Disease
    Internal Medicine
    Experienced in Celiac Disease
    Internal Medicine
    12380 DePaul Drive, 
    Bridgeton, MO 
     (14.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Zubair Khan is a primary care provider, practicing in Internal Medicine in Bridgeton, Missouri. Dr. Khan is rated as an Experienced provider by MediFind in the treatment of Celiac Disease. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Cellulitis, End-Stage Renal Disease (ESRD), Stroke, Endoscopy, and Colonoscopy. Dr. Khan is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Missouri State Board Of Registration, American Board Of Internal Medicine , and Drug Enforcement Administration . Dr. Khan is currently accepting new patients.

    Showing 1-18 of 18

    Last Updated: 09/26/2026

    What is the definition of Celiac Disease?

    Celiac disease is a condition in which the immune system is abnormally sensitive to gluten, a protein found in wheat, rye, and barley. Celiac disease is an autoimmune disorder; autoimmune disorders occur when the immune system malfunctions and attacks the body's own tissues and organs. Without a strict, lifelong gluten-free diet, inflammation resulting from immune system overactivity may cause a wide variety of signs and symptoms involving many parts of the body.

    When should I see a Celiac Disease doctor near o fallon, MO?

    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 Celiac Disease doctor near o fallon, MO?

    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 Celiac Disease doctors near o fallon, MO?

    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 Celiac Disease doctors near o fallon, MO?

    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 Celiac Disease doctor near o fallon, MO?

    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 Celiac Disease doctor search results page. 

    Why is it important to get a second opinion from a different Celiac Disease 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 Celiac Disease doctor near o fallon, MO?

    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 Celiac Disease 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 Celiac Disease 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 Celiac Disease doctors near o fallon, MO?

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

    Look for the filter feature on the left-side of the Celiac Disease 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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