Samuel N. Marcus M.D., Ph.D.



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Dr. Samuel Marcus and his staff are committed to providing you with expert medical care in a sensitive manner. Working as a team, our physician, physician assistants, and office staff strive to earn your confidence as we help you to maintain good gastrointestinal health.

Dr. Marcus is known for his expertise in the diagnosis and management of Crohn’s disease and Ulcerative Colitis.

When Should I see a Gastroenterologist?

Gastroenterology is a subspecialty of Internal Medicine. A gastroenterologist must complete three years of additional training, pass a standardized board examination, and meet continuing education requirements to maintain Board Certification. This specialized training makes the gastroenterologist the most qualified medical professional to diagnose and treat diseases and disorders of the esophagus, stomach, small intestine, colon, and rectum, as well as diseases of the liver and pancreas.

Gastroenterologists use state-of-the-art medical technology – including endoscopy, colonoscopy, radiology, and ultrasound – to assist them in making the correct diagnosis. The goal is to rule out, diagnose and treat a digestive disease in it earliest stage. Although these tests may sound uncomfortable, none of them is particularly painful or unpleasant. In many cases, patients are sedated and often recall little or nothing of the procedure. Some relatively simple screening exams can often prevent colon cancer. Please discuss these tests with your physician. They could make a world of difference for you and your loved ones.

For additional information, please visit the American College of Gastroenterology website.