The 20 Best Crohn's Disease Doctors Near Me in O Fallon, MO
Find the Top Crohn's Disease Experts and Specialists
SSM Health Medical Group
"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 Crohn's Disease. 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 American Board Of Internal Medicine/Gastroenterology , Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
SSM Health Medical Group
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 Crohn's Disease. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Type 1 Diabetes (T1D), Childhood Iron Deficiency Anemia, End-Stage Renal Disease (ESRD), and Type 2 Diabetes (T2D). Dr. Vangundy is board certified in American Board Of Family Medicine , Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
SSM Health Medical Group
"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 Crohn's Disease. 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 American Board Of Internal Medicine/Gastroenterology , Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
SSM Health Medical Group
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 Crohn's 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 , American Board Of Internal Medicine/Gastroenterology , Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
SSM Health Cardinal Glennon Pediatrics Specialty Services
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 Crohn's Disease. Her clinical expertise encompasses Viral Gastroenteritis, Crohn's Disease, Malnutrition, and Ulcerative Colitis. Dr. Pappa is board certified in American Board Of Pediatrics , American Board Of Pediatrics/Gastroenterology , Drug Enforcement Administration , Illinois Department Of Financial & Professional Regulation , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
Premier Infectious Disease Consultants-O'Fallon
Qaiser Jawaid is a Gastroenterologist practicing medicine in O Fallon, Missouri. Dr. Jawaid is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. 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.
Premier Infectious Disease Consultants-O'Fallon
Milton Ochieng is an Internal Medicine provider practicing medicine in O Fallon, Missouri. Dr. Ochieng is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Angiodysplasia of the Colon, Benign Esophageal Stricture, Lower Esophageal Ring, Gastrectomy, and Endoscopy.
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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 Crohn's 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.
SSM Health Medical Group
Dr. Y.A. Ghouri is a gastroenterologist who treats patients ages 18 and older. His specialties include inflammatory bowel disease (IBD), endoscopic therapy, irritable bowel syndrome (IBS), and the gut microbiome. He also diagnoses and treats various gastrointestinal conditions such as ulcers, constipation, nausea, ulcerative colitis (UC), noninfectious gastroenteritis, and Crohn's disease. Dr. Ghouri is renowned for providing quality, compassionate medical care to his patients, which is further highlighted by his friendly bedside manner, attention-to-detail, responsiveness, and patience. He takes his time, listening to his patients and then explaining the appropriate treatment recommendations, which are tailored to their specific needs. He works to ensure a patient's gastrointestinal condition doesn't completely take over or disrupt his or her daily activities. An expert in gastroenterology, Dr. Ghouri has been widely published in various medical journals on topics such as IBD, IBS, UC, GI tumors, and Crohn's disease. Dr. Ghouri is rated as a Distinguished provider by MediFind in the treatment of Crohn's Disease. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Crohn's Disease, Familial Colorectal Cancer, Endoscopy, and Colonoscopy. Dr. Ghouri is board certified in American Board Of Internal Medicine , American Board Of Internal Medicine/Gastroenterology , Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
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Michael Cleary is a Gastroenterologist practicing medicine in Lake Saint Louis, Missouri. Dr. Cleary is rated as an Advanced provider by MediFind in the treatment of Crohn's Disease. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Gardner Syndrome, Turcot Syndrome, Crohn's Disease, Gastrectomy, and Endoscopy.
SSM Health Medical Group
Dr. Montgomery is board certified in family medicine. He completed his residency at Cox Health Systems in Springfield, Missouri, after earning his medical degree at the University of Missouri-Columbia. Dr. Montgomery has been in practice in the Wentzville/Lake Saint Louis area since 1995; he has been with SSM Health since 2008. Dr. Montgomery has a special interest in health maintenance, weight loss, and tobacco cessation. Dr. Montgomery is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Type 2 Diabetes (T2D), Frontonasal Dysplasia Klippel Feil Syndrome, and Multiple Endocrine Neoplasia Type 1. Dr. Montgomery is board certified in American Board Of Family Medicine , Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
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Michael Zerega is an Internal Medicine provider practicing medicine in Lake Saint Louis, Missouri. Dr. Zerega is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Collagenous Colitis, Colitis, Hemorrhoids, Gastrectomy, and Gastrostomy.
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James Petersen is a Gastroenterologist practicing medicine in Lake Saint Louis, Missouri. Dr. Petersen is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. His clinical expertise encompasses Esophagitis, Familial Adenomatous Polyposis, Viral Gastroenteritis, and Colitis.
BJC Medical Group At St Peters
Mei Huang is a Gastroenterologist practicing medicine in Saint Peters, Missouri. Dr. Huang is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. She is also highly rated in 6 other conditions, according to our data. Her clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Esophagitis, Colonoscopy, and Gastrectomy.
Contemporary Womens Healthcare
Jamie Tueth is a primary care provider, practicing in Internal Medicine in O Fallon, Missouri. Dr. Tueth is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Thrombocytopenia, Hypothyroidism, Type 2 Diabetes (T2D), and Obesity in Children.
SSM Health Medical Group
Dr. Richard Geisman is a gastroenterologist who treats patients ages 18 and older. His specialties include general gastroenterology; colon cancer prevention; Crohn's disease; ulcerative colitis; inflammatory bowel disease (IBD); gastroesophageal reflux disease (GERD); and acid reflux. He also performs colonoscopies and upper gastrointestinal endoscopies. Dr. Geisman provides quality, compassionate medical care to his patients, who appreciate how professional, attentive, and personable he is. He takes his time to listen and provides them with a thorough explanation and guidance on treatment and next steps. His mission is to help his patients achieve the best overall health possible. Dr. Geisman is a fellow with the American Gastroenterological Association and a member of the American Society Gastrointestinal Endoscopy. Fun fact: Dr. Geisman's hobbies include exercise, reading, golf, bicycling, and traveling. Dr. Geisman is rated as an Advanced provider by MediFind in the treatment of Crohn's Disease. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Esophagitis, Turcot Syndrome, Endoscopy, and Colonoscopy. Dr. Geisman is board certified in American Board Of Internal Medicine , American Board Of Internal Medicine/Gastroenterology , Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
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Jason Haas is a Gastroenterologist practicing medicine in Chesterfield, Missouri. Dr. Haas is rated as an Advanced provider by MediFind in the treatment of Crohn's Disease. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Swallowing Difficulty, Painful Swallowing, Endoscopy, and Gastrectomy. Dr. Haas is board certified in Gastroenterology.
SSM Health Medical Group
Dr. Kurt Piening is an internal medicine specialist who provides comprehensive primary care services for patients ages 18 and older. In addition to a focus on general health, his areas of expertise include obesity, coronary artery disease, chronic high blood pressure, diabetes, respiratory infections, back pain, and muscle pain. Inspired by his Jesuit education, Dr. Piening strives to be a 'Man for Others,' and practicing medicine allows him to do just that. He enjoys the diagnostic challenges that come with being a primary care provider, while being able to care for multiple generations of families. His patients appreciate how knowledgeable, thoughtful, patient, and thorough he is. Dr. Piening is a member of the American Medical Society; American College of Physicians; and the American College of Internal Medicine. Fun fact: Medicine is a family affair for Dr. Piening - his five sons are either licensed physicians or training to become physicians. Dr. Piening is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses Lung Metastases, Childhood Pancreatitis, Coronary Heart Disease, Endoscopy, and Colonoscopy. Dr. Piening is board certified in American Board Of Internal Medicine , Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
SSM Health Medical Group
Dr. Keith Wickenhauser is an internist who provides comprehensive medical care for patients of all ages, from birth through adulthood and beyond. He specializes in preventive health with regular wellness exams; managing complex medical and co-morbidity conditions; and addressing cardiovascular risk factors such as chronic diabetes, obesity, and chronic high blood pressure. Dr. Wickenhauser's mission is to improve the health of the community around him through effective preventive measures and evidence-based management of current conditions that affect both adult and pediatric patients. He is beloved by his patients, who appreciate how attentive and knowledgeable he is, taking his time to ask pertinent questions and listen fully to their concerns. He is also known to follow up with his patients personally. Dr. Wickenhauser is a member of the American Academy of Pediatrics Member and the American College of Physicians. Fun fact: Dr. Wickenhauser enjoys spending time with his deaf dog. Dr. Wickenhauser is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Chronic Lymphocytic Leukemia (CLL), Lung Metastases, Vitamin D Deficiency, Colonoscopy, and Endoscopy. Dr. Wickenhauser is board certified in American Board Of Internal Medicine , American Board Of Pediatrics , Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
SSM Health Medical Group
Dr. Marcu is board certified in gastroenterology as well as in internal medicine. He earned his medical degree from University of Medicine and Pharmacy - Bucharest and Carol Davila School of Medicine in Romania. Dr. Marcu received his residency training at Saint Louis University Hospital, where he also completed his gastroenterology fellowship. He has been in practice since 1999. Dr. Marcu provides the following procedures including, but not limited to colonoscopy, EGD, ERCP, flex sig, liver biopsy, paracentesis, Remicade infusion, small bowel endoscopy, percutaneous endoscopic gastrostomy, and colon with banding of internal hemorroids. He has a special interest in advanced endoscopy. He is on staff at SSM Health St. Joseph Hospital - St. Charles. Dr. Marcu is rated as an Experienced provider by MediFind in the treatment of Crohn's Disease. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Benign Esophageal Stricture, Lower Esophageal Ring, Menetrier Disease, Gastrectomy, and Colonoscopy. Dr. Marcu is board certified in American Board Of Internal Medicine/Gastroenterology , Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.
Last Updated: 04/28/2026











