About Us

Dr Ramzan announces the formation of Arizona Gastrointestinal Associates Click here to read more

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Nizar Ramzan

Colon & Digestive Health Specialists (CDHS), a division of Arizona Gastrointestinal Associates (AGA), is a premier gastroenterology specialty group that provides outstanding care to the community in Scottsdale, AZ. We pride ourselves in our commitment to the prevention and treatment of colon cancer and encourage patients to have screening colonoscopy by offering a Single Visit Colonoscopy. Our patients receive specialized treatment including endoscopic procedures performed in our state-of-the-art, AAAHC accredited outpatient Ambulatory Surgery Center, Arizona Digestive Center (ADC).

Our providers are board certified/board-eligible and fellowship trained in Gastroenterology and Hepatology. They were trained at prestigious medical institutions such as Mayo Clinic and University of Illinois where they received specialized training in endoscopy, a diagnostic procedure which uses a flexible lighted tube with a video camera to examine and treat the inside of the digestive tract. Our physicians are highly regarded in their field and are members of various professional associations enabling them to keep abreast and informed of all the up-to-date technology, new techniques, latest drug advancements and continuing education for gastroenterology diseases. They actively participate in clinical research studies, lectures and teaching.