Dr. Christian L. Horn

Asad Pervez, MD, provides whole-person digestive care that aims to empower patients through education and is rooted in collaboration. As a board-certified gastroenterologist and obesity medicine specialist, Dr. Pervez combines advanced, evidence-based care with clear communication, compassion and shared decision-making. He approaches each referral with the same level of attention he would want for his own family, and he strives to make the process seamless, respectful and patient-focused from start to finish.Dr. Pervez received a best faculty of the year award in 2005 from the West Virginia University GI Fellowship program, where he served as medical director of endoscopy from 2023-2025 and medical director of motility from 2022-2025. Dr. Pervez is rated as an Experienced provider by MediFind in the treatment of Mesenteric Artery Ischemia. His top areas of expertise are Painful Swallowing, Swallowing Difficulty, Mesenteric Artery Ischemia, Endoscopy, and Lithotripsy.

Marshall Mccabe is a Gastroenterologist in Olympia, Washington. Dr. Mccabe is rated as an Advanced provider by MediFind in the treatment of Mesenteric Artery Ischemia. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Trichohepatoenteric Syndrome, Diarrhea, Familial Adenomatous Polyposis, and Endoscopy.

John Sun, MD, is a board-certified gastroenterologist providing comprehensive digestive care for adults. In addition to general gastroenterology, he has specific experience in the management of inflammatory bowel disease, small intestinal disease and celiac disease.Dr. Sun believes in establishing a therapeutic partnership with his patients, and a close working relationship with his physician colleagues, in order to achieve the best outcomes. He takes the time to educate patients on their condition, treatment options and outcomes so they can make informed choices to feel their best.Dr. Sun is a member of the American College of Gastroenterology. Dr. Sun is rated as an Advanced provider by MediFind in the treatment of Mesenteric Artery Ischemia. His top areas of expertise are Diarrhea, Trichohepatoenteric Syndrome, Familial Adenomatous Polyposis, Endoscopy, and Colonoscopy.