Dr. Mara Posner

David Shih is a Gastroenterologist in Las Vegas, Nevada. Dr. Shih is rated as a Distinguished provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Viral Gastroenteritis, Colitis, Crohn's Disease, Gastrectomy, and Colonoscopy. Dr. Shih is currently accepting new patients.

Dr. Stone has been practicing gastroenteology for more than 15 years and is an internationally recognized expert in Inflammatory Bowel Diseases (Crohn's and Ulcerative colitis). He has conducted and published research, served as principal investigator on numerous clinical trials, has participated in the training of dozens of gastroenterology fellows and serves the public by volunteering for the Crohn's and Colitis Foundation of America and numerous other local organizations. In addition, he sees patients for other digestive diseases including acid reflux, swallowing and defecation difficulty, ulcers, celiac disease, colon cancer screening, abdominal pain and diarrheal disorders. Dr. Stone strives to be attentive to every patient, focus on obtaining an accurate medical history and being careful and efficient in the diagnostic work-up, avoiding unnecessary testing and explaining the limitations of testing.When you see me as a patient, my first goal is to get as much information about your symptoms or condition. To do this I will ask a lot of questions and try to narrow down the possible causes to explain the symptoms. I tend to be direct and cut to the chase, valuing your time and trying to be as efficient as possible. I welcome questions and readily admit when our medical approach may have limitations. Rather than order multiple tests and hoping that something shows up, it is better to do a careful evaluation and direct the work-up to confirm a clinical suspicion. This tends to make testing more worthwhile and reliable. I place emphasis on treatments that have published evidence to support their use, but there is also an art to medicine and sometimes answers do not come easily. I value any input or feedback from patients. When I make a recommendation, you can be confident that I am putting your best interest first, avoiding unnecessary or low-yield testing. Dr. Stone is rated as an Advanced provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, Endoscopy, and Gastrostomy.

Gregory Kwok is a Gastroenterologist in Las Vegas, Nevada. Dr. Kwok is rated as a Distinguished provider by MediFind in the treatment of Crohn's Disease. His top areas of expertise are Heartburn, Familial Adenomatous Polyposis, Gardner Syndrome, and Turcot Syndrome.