The 20 Best Colitis Doctors Near Me in O Fallon, MO

Find the Top Colitis Experts and Specialists

Last Updated: 02/22/2026

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MediFind found 61 doctor with experience in Colitis near O Fallon, MO. Of these, 53 are Experienced and 5 are Advanced.

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61 providers found
    Louay Omran
    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    SSM Health Medical Group

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

    Louay Omran, MD, is a board-certified gastroenterologist, and a formally trained advanced endoscopist. He has the ability to perform endoscopic ultrasound (EUS), ERCP, and luminal stenting to relieve obstruction. Dr. Omran is available for the evaluation and management of patients with both common and challenging gastrointestinal disorders. Dr. Omran attended medical school in Syria, and completed internal medicine residencies and two fellowships (geriatric medicine and gastroenterology & hepatology) at Saint Louis University. He also completed a fellowship in advanced endoscopy and pancreatic diseases at the Medical University of South Carolina. He is a board certified physician nutritionist. Before joining SSM Health Medical Group, Dr. Omran practiced gastroenterology and advanced endoscopy at SSM Health Saint Louis University Hospital as a member of SLUCare. For over 15 years, he was a key faculty member participating in the education and training of students, residents and fellows. He won numerous teaching awards in the process. Dr. Omran was elected to become a Fellow of the American College of Physicians. He is also a member of the American Society for Gastrointestinal Endoscopy, the American Gastrointestinal Association, and the American College of Gastroenterology. Dr. Omran is married to Pascale Salam, MD, and has two sons. His hobbies include reading modern history and biographies, trivia, soccer and tennis. Dr. Omran is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Choledocholithiasis, Childhood Pancreatitis, Acute Pancreatitis, Endoscopy, and Colonoscopy.

    Syed Tariq
    Advanced in Colitis
    Gastroenterology | Internal Medicine
    Advanced in Colitis
    Gastroenterology | Internal Medicine

    SSM Health Medical Group

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

    "Dr. Tariq is board certified in gastroenterology and internal medicine. His fellowship in gastroenterology and hepatology at Saint Louis University was completed in 2011. Prior to that he had earned board certification in geriatrics and spent over 10 years in the practice of geriatrics and internal medicine, which included patient care, research and teaching, and several directorships of geriatric programs in the St. Louis area. Dr. Tariq's fellowship in geriatrics was served at Saint Louis University, as was his internal medicine residency. ""My years in geriatric medicine were very rewarding. Now with this additional subspecialty, I look forward to helping adult patients of all ages with their gastrointestinal issues. I am excited to have partnered with Dr. Rodemann and SSM Health in this next chapter of my career.""- Syed Tariq, MD". Dr. Tariq is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Gastrointestinal Bleeding, Crohn's Disease, Familial Adenomatous Polyposis, Colonoscopy, and Endoscopy.

    Michael Hemmersmeier
    Family Medicine
    Family Medicine

    SSM Health Medical Group

    1101 Highway K, 
    O Fallon, MO 
     (1.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Dr. Hemmersmeier is board certified in family medicine. He completed his residency at Deaconess Hospital - St. Louis after earning his medical degree at Kirksville College of Osteopathic Medicine. Dr. Hemmersmeier has been in practice in O'Fallon, MO since 1998. He has a special interest in sports medicine and has volunteered as a coach in the community and at his church in conjunction with his children's athletic interests. Dr. Hemmersmeier has been awarded recognition from the National Committee for Quality Assurance (NCQA) Diabetes and Stroke Physician Recognition Programs for meeting national standards for diabetes and stroke care. Dr. Hemmersmeier is part of a Patient-Centered Medical Home. Dr. Hemmersmeier uses telehealth services to conduct video office visits with current, established patients for: upper respiratory infection, sore throat, cough, seasonal allergies, skin rashes or lesions, mouth and cold sores, flu symptoms, conjunctivitis, UTI, gout, yeast infection and travel medication. A forward-facing camera and internet access are required, and a tablet or computer/laptop may be used. Telehealth appointments can be scheduled online through MyChart. Dr. Hemmersmeier is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Familial Hypertension, Coronary Heart Disease, Sacroiliac Joint Disease, and Hypothyroidism.

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    Paul Hinton
    Experienced in Colitis
    Internal Medicine | Pediatrics
    Experienced in Colitis
    Internal Medicine | Pediatrics

    SSM Health Medical Group

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

    Paul Hinton, MD, is an internist and pediatrician who provides comprehensive primary care services on an outpatient basis for patients of all ages, from newborns to adults. He specializes in preventive care; diagnosing, treating, and managing common conditions; and identifying and addressing mental health issues. Dr. Hinton provides quality medical care for his patients, while empowering them to take better care of themselves. Utilizing current medical therapies and positive behavior, he encourages his patients to have the best mind, body, and spirit possible. His patients appreciate how compassionate, thorough, reliable, and friendly he is during their office visits, taking the time to listen to their concerns and answer questions accordingly. Dr. Hinton is a member of the American Academy of Pediatrics and the American Board of Internal Medicine. Fun fact: Dr. Hinton never considered a career in medicine until he took his first biology class in college. Dr. Hinton is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are High Cholesterol, Chronic Obstructive Pulmonary Disease (COPD), Type 2 Diabetes (T2D), Endoscopy, and Gastrostomy.

    Jason Vangundy
    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    SSM Health Medical Group

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

    Dr. VanGundy is board certified in family medicine. He completed his internship at Genesis Education Foundation-University of Iowa and then completed his residency at the Quad Cities Practice Program. Dr. VanGundy earned his medical degree from the University of Iowa Carver College of Medicine in Iowa City. He has been practicing in St. Charles County since 2001 and has been with SSM since 2003. Dr. VanGundy has a special medical interest in sports medicine and pediatrics. Dr. VanGundy uses telehealth services to conduct video office visits with current, established patients for: upper respiratory infection, sore throat, cough, seasonal allergies, skin rashes or lesions, mouth and cold sores, flu symptoms, conjunctivitis, UTI, gout, yeast infection and travel medication. A forward-facing camera and internet access are required, and a tablet or computer/laptop may be used. Telehealth appointments can be scheduled online through MyChart. Dr. Vangundy is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Type 1 Diabetes (T1D), Childhood Iron Deficiency Anemia, End-Stage Renal Disease (ESRD), and Type 2 Diabetes (T2D).

    Joseph Rodemann
    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    SSM Health Medical Group

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

    "Dr. Rodemann is board certified in gastroenterology and board certified in internal medicine. He completed a fellowship at the University of Pittsburgh's Division of Gastroenterology, Hepatology and Nutrition, where he was named chief fellow. Prior to that, Dr. Rodemann was a clinical instructor of medicine at Washington University in St. Louis, where he had completed his internal medicine residency. Dr. Rodemann earned his medical degree at Loyola University in Chicago. In addition to inflammatory bowel disease and screening colonoscopy, Dr. Rodemann's areas of interest include irritable bowel syndrome and biliary disease. His particular skills include esophagogastroduodenoscopy, with treatment of variceal and non-variceal bleeding; colonoscopy, with polypectomy and treatment of bleeding; video pill endoscopy; ERCP; PEG placement; and nasal endoscopy with placement of post-pyloric feeding tubes. He is on staff at SSM Health St. Joseph Hospital - Lake Saint Louis. ""I am drawn to gastroenterology because of the opportunity to treat a variety of diseases involving the GI tract, liver and pancreas. I am particularly interested in inflammatory bowel disease and the impact that screening colonoscopy has on preventing colon cancer. I am excited to bring my special training home to the St. Louis area and feel privileged to take care of patients in St. Charles County.""-Joseph Rodemann, MD". Dr. Rodemann is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Morning Sickness, Esophagitis, Swallowing Difficulty, Endoscopy, and Colonoscopy.

    Elizabeth Marsicano
    Experienced in Colitis
    Gastroenterology | Internal Medicine
    Experienced in Colitis
    Gastroenterology | Internal Medicine

    SSM Health Medical Group

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

    Dr. Elizabeth Marsicano is a gastroenterologist who treats patients ages 18 and older. She specializes in treating gastroesophageal reflux disease (GERD); esophageal motility/swallowing issues; chronic constipation; chronic diarrhea; celiac disease; Barrett's esophagus; pelvic floor disorders; inflammatory bowel disease (IBD); metabolic liver disease; hepatitis B/C; hemochromatosis; autoimmune liver disease cirrhosis; and gastrointestinal diseases in pregnancy. She also performs colonoscopies and upper endoscopies. Dr. Marsicano aims to create a collaborative relationship with her patients to ensure optimal management of their gastrointestinal concerns through evidence-based practice, education, and mutual understanding. She works closely with her patients and their families to tailor a treatment plan that meets their specific needs and goals. Dr. Marsicano is a founding member of the Missouri Gastroenterology Society; a member of the American College of Gastroenterology; and a member of the American Neurogastroenterology and Motility Society. Fun fact: Dr. Marsicano enjoys traveling, yoga, and reading in her spare time. Dr. Marsicano is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Ascites, Diverticular Disease, Hemorrhoids, Endoscopy, and Gastrectomy.

    Andrew Hellenga
    Experienced in Colitis
    Family Medicine | Hospital Medicine | Internal Medicine
    Experienced in Colitis
    Family Medicine | Hospital Medicine | Internal Medicine
    100 Medical Plaza, Hospitalists, 
    Lake St. Louis, MO 
     (4.1 miles away)
    Languages Spoken:
    English

    Andrew Hellenga is a primary care provider, practicing in Internal Medicine and Family Medicine in Lake St. Louis, Missouri. Dr. Hellenga is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Chronic Obstructive Pulmonary Disease (COPD), Lung Metastases, Sepsis, Colonoscopy, and Endoscopy.

    Helen Pappa
    Experienced in Colitis
    Pediatric Gastroenterology | Pediatrics
    Experienced in Colitis
    Pediatric Gastroenterology | Pediatrics

    SSM Health Cardinal Glennon Pediatrics Specialty Services

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

    Dr. Helen Pappa treats conditions of the digestive tract, liver and pancreas, including: abdominal pain; Barrett's esophagus; colitis; Crohn's disease; cirrhosis; colorectal cancer and disorders; diabetes; diverticulitis and diverticulosis; gallbladder diseases; hernias; and gastrointestinal disease. Dr. Pappa uses evidence-based medicine in her treatment of patients. Her research interests include improving care for patients with inflammatory bowel disease (IBD), and growth and bone health in patients with IBD. Dr. Pappa is an associate professor in the Department of Pediatrics, Division of Gastroenterology, at Saint Louis University School of Medicine. She also holds a master's degree in public health from Harvard. She is a member of the American Gastroenterological Association, the Crohn's and Colitis Foundation (CCF), and the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition. She is on the pediatric advisory committee of the CCF. Dr. Pappa is the parent of a disabled child and is an advocate for children with disabilities. Dr. Pappa is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Viral Gastroenteritis, Crohn's Disease, Malnutrition, and Ulcerative Colitis.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    BJC Medical Group At O'Fallon

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

    Matthew Beckerdite is a primary care provider, practicing in Family Medicine in O Fallon, Missouri. Dr. Beckerdite is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and High Cholesterol.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    BJC Medical Group At O'Fallon

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

    Jyoti Kulkarni is a primary care provider, practicing in Family Medicine in O Fallon, Missouri. Dr. Kulkarni is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Postmenopausal Osteoporosis, Osteoporosis, Hypercalcemia, and Milk-Alkali Syndrome.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine
    100 Medical Plaza, 
    Lake St. Louis, MO 
     (4.1 miles away)
    Languages Spoken:
    English

    Sandhya Grandhi is a primary care provider, practicing in Family Medicine in Lake St. Louis, Missouri. Dr. Grandhi is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Radiation Enteritis, Hospital-Acquired Pneumonia, Atypical Pneumonia, Ureteroscopy, and Endoscopy.

    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine
    100 Medical Plaza, Hospitalists, 
    Lake St. Louis, MO 
     (4.1 miles away)
    Languages Spoken:
    English

    Krishna Syamala is a primary care provider, practicing in Family Medicine in Lake St. Louis, Missouri. Dr. Syamala is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Saddle Pulmonary Embolism, Sepsis, Apoplexy, Endoscopy, and Gastrostomy.

    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    Office

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

    David Lotsoff is a Gastroenterologist in O Fallon, Missouri. Dr. Lotsoff is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Lower Esophageal Ring, Benign Esophageal Stricture, Painful Swallowing, Gastrectomy, and Gastrostomy.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Premier Infectious Disease Consultants-O'Fallon

    20 Progress Point Pkwy Ste 206, 
    O Fallon, MO 
     (4.4 miles away)
    Languages Spoken:
    English

    Milton Ochieng is an Internal Medicine provider in O Fallon, Missouri. Dr. Ochieng is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Angiodysplasia of the Colon, Benign Esophageal Stricture, Lower Esophageal Ring, Gastrectomy, and Endoscopy.

    Experienced in Colitis
    Gastroenterology
    Experienced in Colitis
    Gastroenterology

    Premier Infectious Disease Consultants-O'Fallon

    20 Progress Point Pkwy Ste 206, 
    O Fallon, MO 
     (4.4 miles away)
    Languages Spoken:
    English

    Qaiser Jawaid is a Gastroenterologist in O Fallon, Missouri. Dr. Jawaid is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Choledocholithiasis, Diverticular Disease, Menetrier Disease, Endoscopy, and Gastrectomy.

    Experienced in Colitis
    Internal Medicine
    Experienced in Colitis
    Internal Medicine

    Office

    2223 Technology Dr Ste 35, 
    O Fallon, MO 
     (4.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Geraldine Ryan is a primary care provider, practicing in Internal Medicine in O Fallon, Missouri. Dr. Ryan is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Melorheostosis with Osteopoikilosis, Melorheostosis, Osteopenia, and Sitosterolemia.

    Experienced in Colitis
    Emergency Medicine
    Experienced in Colitis
    Emergency Medicine

    Barnes-Jewish St. Peters Hospital

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

    Rex Hudson is a primary care provider, practicing in Emergency Medicine in Saint Peters, Missouri. Dr. Hudson is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Headache, Hospital-Acquired Pneumonia, Atypical Pneumonia, and Pneumonia.

    Delores Dotson
    Experienced in Colitis
    Family Medicine
    Experienced in Colitis
    Family Medicine

    SSM Health Medical Group

    6994 Mexico Road, 
    St. Peters, MO 
     (5.1 miles away)
    Languages Spoken:
    English

    "Delores Dotson, MD, MPH, is a board-certified family medicine physician. She received her medical degree and completed her residency from the University of Tennessee Health Science Center. She also received a Masters of Public Health in eliminating health disparity from Saint Louis University School of Public Health. Since 2009, Dr. Dotson has practiced as a family medicine physician. Her special medical interests include chronic disease management, preventative and wellness education and screening, and minor procedures, including incision and drainage, skin lesion removal, suturing, and large joint injections. She cares for patients ages 13 and older. Dr. Dotson is a member of the American Academy of Family Physicians and the Missouri Academy of Family Physicians. Since 2015, she has received the National Committee for Quality Assurance for Diabetes Care (NCQA) award. When she is not working, Dr. Dotson enjoys time with her family, traveling, and watching thriller movies. ""I'm committed to provide a caring environment, using my expertise to improve the health and wellness of every patient I meet, as well as the health of our community.""". Dr. Dotson is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Diabetic Hyperglycemic Hyperosmolar Syndrome, Type 2 Diabetes (T2D), Tenosynovitis, and Hypertension.

    Advanced in Colitis
    Internal Medicine
    Advanced in Colitis
    Internal Medicine

    Office

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

    Michael Zerega is an Internal Medicine provider in Lake Saint Louis, Missouri. Dr. Zerega is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Collagenous Colitis, Colitis, Hemorrhoids, Gastrectomy, and Gastrostomy.

    Showing 1-20 of 61

    Last Updated: 02/22/2026

    What is the definition of Colitis?

    Colitis is swelling (inflammation) of the large intestine (colon).

    When should I see a Colitis 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 Colitis 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 Colitis 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 Colitis 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 Colitis 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 Colitis doctor search results page. 

    Why is it important to get a second opinion from a different Colitis 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 Colitis 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 Colitis 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 Colitis 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 Colitis doctors near O Fallon, MO?

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

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