The 20 Best Colonoscopy Doctors near weldon spring, MO

Find the Experts and Specialists who perform Colonoscopy

Last Updated: 09/26/2026

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MediFind found 157 doctor with experience in Colonoscopy near weldon spring, MO. Of these, 138 are Experienced and 19 are Advanced.

Location
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157 providers found
    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology
    Referral may be required

    Premier Infectious Disease Consultants-O'Fallon

    20 Progress Point Pkwy Ste 206, 
    O Fallon, MO 
     (3.4 miles away)
    Languages Spoken:
    English, Hindi, Punjabi, Urdu
    Accepting New Patients

    Qaiser Jawaid is a Gastroenterologist practicing medicine in O Fallon, Missouri. Dr. Jawaid is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Choledocholithiasis, Diverticular Disease, Menetrier Disease, Endoscopy, and Gastrectomy. Dr. Jawaid is currently accepting new patients.

    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine

    Office

    2 Progress Point Pkwy, 
    O Fallon, MO 
     (0.5 miles away)
    Languages Spoken:
    English

    Nadia Zia is a primary care provider, practicing in Internal Medicine in O Fallon, Missouri. Dr. Zia is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Acute Kidney Failure, Pneumonia, Hospital-Acquired Pneumonia, Endoscopy, and Hip Replacement.

    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology
    Referral may be required

    Office

    2 Progress Point Pkwy Ste 206, 
    O Fallon, MO 
     (3.4 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 Colonoscopy. 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.

    Learn about our expert tiers
    Experienced in Colonoscopy
    Internal Medicine
    Experienced in Colonoscopy
    Internal Medicine
    10 Macleod Court, 
    O Fallon, MO 
     (3.4 miles away)
    Languages Spoken:
    English

    Ahmet Guler is a primary care provider, practicing in Internal Medicine in O Fallon, Missouri. Dr. Guler is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, Colonoscopy, and Endoscopy. Dr. Guler is board certified in Missouri State Board Of Registration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , The National Board Of Physicians And Surgeons, American Board Of Internal Medicine , and Drug Enforcement Administration .

    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology
    Referral may be required

    Office

    5551 Winghaven Blvd Ste 250, 
    O Fallon, MO 
     (3.4 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 Colonoscopy. 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.

    Experienced in Colonoscopy
    Family Medicine
    Experienced in Colonoscopy
    Family Medicine

    BJC Medical Group At O'Fallon

    2630 Highway K, 
    O Fallon, MO 
     (4.1 miles away)
    Languages Spoken:
    English

    John O'brien is a primary care provider, practicing in Family Medicine in O Fallon, Missouri. Dr. O'brien is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Type 2 Diabetes (T2D), Post Polio Syndrome, Hypertension, Colonoscopy, and Endoscopy.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology
    Referral may be required

    SSM Health Medical Group

    300 Medical Plaza, Suite 310, 
    Lake St. Louis, MO 
     (7.7 miles away)
    Languages Spoken:
    English, Punjabi, Urdu
    Accepting New Patients
    Offers Telehealth

    Syed Tariq is a Gastroenterologist practicing medicine in Lake St. Louis, Missouri. Dr. Tariq is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Crohn's Disease, Familial Adenomatous Polyposis, Colonoscopy, and Endoscopy. Dr. Tariq is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Missouri State Board Of Registration, Drug Enforcement Administration , and American Board Of Internal Medicine/Gastroenterology . Dr. Tariq is currently accepting new patients.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology
    Referral may be required

    SSM Health Medical Group

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

    Joseph Rodemann is a Gastroenterologist practicing medicine in Lake St. Louis, Missouri. Dr. Rodemann is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Morning Sickness, Esophagitis, Painful Swallowing, Endoscopy, and Colonoscopy. Dr. Rodemann is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Missouri State Board Of Registration, Drug Enforcement Administration , and American Board Of Internal Medicine/Gastroenterology . Dr. Rodemann is currently accepting new patients.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology
    Referral may be required

    SSM Health Medical Group

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

    Louay Omran is a Gastroenterologist practicing medicine in Lake St. Louis, Missouri. Dr. Omran is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Choledocholithiasis, Childhood Pancreatitis, Acute Pancreatitis, Endoscopy, and Colonoscopy. Dr. Omran is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Missouri State Board Of Registration, Drug Enforcement Administration , and American Board Of Internal Medicine/Gastroenterology . Dr. Omran is currently accepting new patients.

    Experienced in Colonoscopy
    Pediatrics | Internal Medicine
    Experienced in Colonoscopy
    Pediatrics | Internal Medicine
    Referral may be required

    SSM Health Medical Group

    400 Medical Plaza, Suite 200, 
    Lake St. Louis, MO 
     (7.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Paul Hinton is a primary care provider, practicing in Pediatrics and Internal Medicine in Lake St. Louis, Missouri. Dr. Hinton is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Chronic Obstructive Pulmonary Disease (COPD), Type 2 Diabetes (T2D), Endoscopy, and Gastrostomy. Dr. Hinton is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , American Board Of Pediatrics , Missouri State Board Of Registration, American Board Of Internal Medicine , and Drug Enforcement Administration . Dr. Hinton is currently accepting new patients.

    Experienced in Colonoscopy
    General Surgery
    Experienced in Colonoscopy
    General Surgery
    Referral may be required

    SSM Health Medical Group

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

    Mark Leibold is a General Surgeon practicing medicine in Lake St. Louis, Missouri. Dr. Leibold is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Hernia, Choledocholithiasis, Gallbladder Disease, Hernia Surgery, and Colostomy. Dr. Leibold is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , American Board Of Surgery , Missouri State Board Of Registration, and Drug Enforcement Administration . Dr. Leibold is currently accepting new patients.

    Experienced in Colonoscopy
    General Surgery
    Experienced in Colonoscopy
    General Surgery
    Referral may be required

    SSM Health Medical Group

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

    David Nickel is a General Surgeon practicing medicine in Lake St. Louis, Missouri. Dr. Nickel is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Hernia, Gallbladder Disease, Hernia Surgery, and Colostomy. Dr. Nickel is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , American Board Of Surgery , Missouri State Board Of Registration, and Drug Enforcement Administration . Dr. Nickel is currently accepting new patients.

    Experienced in Colonoscopy
    Experienced in Colonoscopy
    Referral may be required

    SSM Health Medical Group

    300 Medical Plaza, Suite 310, 
    Lake St. Louis, MO 
     (7.7 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 Colonoscopy. 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.

    Experienced in Colonoscopy
    Family Medicine | Hospital Medicine
    Experienced in Colonoscopy
    Family Medicine | Hospital Medicine
    100 Medical Plaza, Hospitalists, 
    Lake St. Louis, MO 
     (7.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Andrew Hellenga is a Hospital Medicine provider practicing medicine in Lake St. Louis, Missouri. Dr. Hellenga is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Gallbladder Disease, End-Stage Renal Disease (ESRD), Heart Failure with Preserved Ejection Fraction (HFpEF), Colonoscopy, and Endoscopy. Dr. Hellenga is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Illinois Department Of Financial & Professional Regulation , American Board Of Family Medicine , Missouri State Board Of Registration, and Drug Enforcement Administration . Dr. Hellenga is currently accepting new patients.

    Advanced in Colonoscopy
    Gastroenterology
    Advanced in Colonoscopy
    Gastroenterology
    Referral may be required

    Barnes-Jewish St. Peters Hospital

    10 Hospital Dr, 
    Saint Peters, MO 
     (8.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Mei Huang is a Gastroenterologist practicing medicine in Saint Peters, Missouri. Dr. Huang is rated as an Advanced provider by MediFind in Colonoscopy. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Esophagitis, Colonoscopy, and Gastrectomy. Dr. Huang is currently accepting new patients.

    Advanced in Colonoscopy
    Internal Medicine
    Advanced in Colonoscopy
    Internal Medicine

    Office

    10 Hospital Dr, 
    Saint Peters, MO 
     (8.1 miles away)
    Languages Spoken:
    English

    April Thebeau is a primary care provider, practicing in Internal Medicine in Saint Peters, Missouri. Dr. Thebeau is rated as an Advanced provider by MediFind in Colonoscopy. She is also highly rated in 18 other conditions, according to our data. Her clinical expertise encompasses Viral Gastroenteritis, Colitis, Urinary Tract Infection in Children, Colonoscopy, and Endoscopy.

    Advanced in Colonoscopy
    Internal Medicine
    Advanced in Colonoscopy
    Internal Medicine

    Hospital Based Practice

    10 Hospital Dr, 
    Saint Peters, MO 
     (8.1 miles away)
    Languages Spoken:
    English

    John Hartweger is a primary care provider, practicing in Internal Medicine in Saint Peters, Missouri. Dr. Hartweger is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 36 other conditions, according to our data. His clinical expertise encompasses Infectious Arthritis, Pneumonia, Multisystem Inflammatory Syndrome in Children (MIS-C), Endoscopy, and Colonoscopy.

    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology
    Referral may be required

    Gateway Gastroenterology Inc.

    121 St Luke’s Center Drive Ste 406, 
    Chesterfield, MO 
     (9.5 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 Colonoscopy. 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.

    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology
    Referral may be required

    Gateway Gastroenterology Inc.

    121 St Luke’s Center Drive Ste 406, 
    Chesterfield, MO 
     (9.5 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 Colonoscopy. 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.

    Experienced in Colonoscopy
    Gastroenterology
    Experienced in Colonoscopy
    Gastroenterology
    Referral may be required

    Gateway Gastroenterology Inc.

    121 St Luke’s Center Drive Ste 406, 
    Chesterfield, MO 
     (9.5 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 Colonoscopy. 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.

    Showing 1-20 of 157

    Last Updated: 09/26/2026

    What is the definition of Colonoscopy?

    A colonoscopy is an exam that views the inside of the colon (large intestine) and rectum, using a tool called a colonoscope.

    The colonoscope has a small camera attached to a flexible tube that can reach the entire length of the colon.

    When should I see a Colonoscopy doctor near weldon spring, 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 Colonoscopy doctor near weldon spring, 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 Colonoscopy doctors near weldon spring, 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 Colonoscopy doctors near weldon spring, 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 Colonoscopy doctor near weldon spring, 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 Colonoscopy doctor search results page. 

    Why is it important to get a second opinion from a different Colonoscopy 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 Colonoscopy doctor near weldon spring, 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 Colonoscopy 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 Colonoscopy 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 Colonoscopy doctors near weldon spring, MO?

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

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