The 20 Best Irritable Bowel Syndrome (IBS) Doctors Near Me in Thousand Oaks, CA
Find the Top Irritable Bowel Syndrome (IBS) Experts and Specialists
MediFind found 54 doctor with experience in Irritable Bowel Syndrome (IBS) near Thousand Oaks, CA. Of these, 48 are Experienced and 4 are Advanced.
Arroyo Oaks Medical Associates, Inc
Dina Ohevshalom is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Ohevshalom is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Juvenile Primary Osteoporosis, Melorheostosis, Melorheostosis with Osteopoikilosis, Endoscopy, and Hip Replacement. Dr. Ohevshalom is currently accepting new patients.
Arroyo Oaks Medical Associates, Inc
Russell Hines is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Hines is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, Colonoscopy, and Endoscopy. Dr. Hines is currently accepting new patients.
Ventura County Gastroenterology Group
Dr. Karen Simon received her B.A. from Stanford University in 1996. She then attended Northwestern University for medical school. She completed her residency at Cedars-Sinai Medical Center in 2004 and her fellowship at UCLA and Cedars in 2008.Dr. Simon has proudly been serving patients in Ventura County since 2008 and is very involved in field research. Dr. Simon is also a speaker for Exact Sciences on behalf of Cologuard and is actively associated in research studies. She is a part of the Takeda Chloride Channel Council and a speaker for Amitiza, as well.She enjoys educating the doctors and the community as a lecturer on topics such as colorectal cancer screening at St. John's Hospital, where she is also a part of the Ethics Committee.Dr. Simon aims specifically to work with patients to discover the problem and develop a treatment strategy. She has a particular interest in Celiac Disease, Inflammatory Bowel Disease (IBD), and a passion for improving colorectal cancer detection.She is dedicated to developing a relationship with patients by utilizing education and mutual information sharing. Dr. Simon is rated as an Advanced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Swallowing Difficulty, Endoscopy, and Colonoscopy.
Ventura County Gastroenterology Group
Dr. Micha Rojany was born and raised in Southern California. He received his undergraduate degree from the University of California, Berkeley. He attended USC Medical School and completed his internship and residency at Cedars-Sinai Medical Center in Los Angeles. His fellowship in Gastroenterology was completed at the University of California, Davis.Dr. Rojany has practiced in Ventura County since 2006 and is an active member of the local medical community and hospital staff at St. John's Regional Medical Center in Oxnard, and Pleasant Valley Hospital, in Camarillo. He enjoys practicing as a Gastroenterologist with special interests in inflammatory bowel disease and biliary tract diseases.As a Gastroenterologist, Dr. Rojany enjoys the depth and breadth of his field. He takes pride in providing excellent care while taking care of his patients and meeting their needs as a community specialist in digestive diseases. Dr. Rojany is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Familial Adenomatous Polyposis, Gastrointestinal Bleeding, Angiodysplasia of the Colon, Endoscopy, and Gastrectomy.
UCLA
Craig Gluckman is an Internal Medicine provider in Thousand Oaks, California. Dr. Gluckman is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Achalasia, Gastroesophageal Reflux Disease (GERD), Bowel Incontinence, Endoscopy, and Colonoscopy.
Arroyo Oaks Medical Associates, Inc
Manoj Aswani is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Aswani is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are High Cholesterol, Hypertension, Familial Hypertension, Pacemaker Implantation, and Endoscopy.
Arroyo Oaks Medical Associates, Inc
Elise Bukont is a primary care provider, practicing in Family Medicine in Thousand Oaks, California. Dr. Bukont is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Defective Apolipoprotein B-100, Heterozygous Familial Hypercholesterolemia (HeFH), Homozygous Familial Hypercholesterolemia (HoFH), Gastrostomy, and Hip Replacement.
UCLA Heart And Vascular Services
Michael Albertson is a Gastroenterologist in Thousand Oaks, California. Dr. Albertson is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Irritable Bowel Syndrome (IBS), Endoscopy, and Gastrectomy.
Gregory H Johnson MD Inc
Gregory Johnson is a Gastroenterologist in Thousand Oaks, California. Dr. Johnson is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Gastrointestinal Bleeding, Diarrhea, Trichohepatoenteric Syndrome, Gastrectomy, and Endoscopy.
UCLA Heart And Vascular Services
Marjan Lyons is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Lyons is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Post-Traumatic Stress Disorder (PTSD), High Cholesterol, Hypothyroidism, and Obesity in Children.
Jigar Ghelani, MD
Jigar Ghelani is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Ghelani is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Acute Kidney Failure, Hypertension, Glucocorticoid-Remediable Aldosteronism, Gastrostomy, and Colonoscopy.
Thousand Oaks Primary & Specialty Care
Hamed Nayeb is a Gastroenterologist in Thousand Oaks, California. Dr. Nayeb is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Crohn's Disease, Familial Adenomatous Polyposis, Turcot Syndrome, Endoscopy, and Gastrectomy.
Cristina S. Wiese. M.D. Inc.
Cristina Wiese is a Gastroenterologist in Thousand Oaks, California. Dr. Wiese is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Gastric Dysmotility, Familial Adenomatous Polyposis, Gastroesophageal Reflux Disease (GERD), Gastrectomy, and Endoscopy.
Office
Kevin Pimstone is a primary care provider, practicing in Internal Medicine in Westlake Village, California. Dr. Pimstone is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Reactive Arthritis, Acute Interstitial Pneumonia, Cholesterol Pneumonia, and Glucocorticoid-Remediable Aldosteronism.
Office
Rimma Shaposhnikov is a Gastroenterologist in Westlake Village, California. Dr. Shaposhnikov is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Gastrectomy.
UCLA Health Westlake Village Triunfo Primary & Specialty Care
Leslie Johnson is a primary care provider, practicing in Family Medicine in Westlake Village, California. Dr. Johnson is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are High Cholesterol, Irritable Bowel Syndrome (IBS), and Hypervitaminosis D.
Office
Giselle Namazie is a primary care provider, practicing in Internal Medicine in Westlake Village, California. Dr. Namazie is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Type 1 Diabetes (T1D), Breast Cancer, Vertigo, and High Cholesterol.
Laya Nasrollah is a Gastroenterologist in Camarillo, California. Dr. Nasrollah is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Gastroesophageal Reflux Disease (GERD), Familial Adenomatous Polyposis, Diarrhea, Endoscopy, and Gastrectomy. Dr. Nasrollah is currently accepting new patients.
Ventura County Gastroenterology Group
Jay Guan is a Gastroenterologist in Camarillo, California. Dr. Guan is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Hemorrhoids, Hiatal Hernia, Congenital Diaphragmatic Hernia, Colonoscopy, and Gastrectomy. Dr. Guan is currently accepting new patients.
TSEN Healthcare
Shawnita Preyer is a Family Medicine provider in Simi Valley, California. Her top areas of expertise are Insomnia, Hypertension, High Cholesterol, and Hypothyroidism.
Last Updated: 04/28/2026


