Advanced Surgery Center of Long Island (ASCLI) is a community wellness resource, providing advanced endoscopy and pain management procedures in a comfortable, safe, and compassionate environment. Advances in gastroenterology have revolutionized the diagnosis of digestive tract disorders. ASCLI’s board certified gastroenterology specialists have led the way in introducing these state-of-the-art technologies and endoscopic procedures to patients across all of Long Island. We diagnose and evaluate conditions ranging from heartburn to hemorrhoids, and screen for disorders from colitis to colorectal cancer. GI health is essential to your well-being. The diagnostic testing we perform at ASCLI allows us to evaluate symptoms of digestive system disorders that can negatively affect your quality of life, and which may have serious health consequences. As experts in pain management, our physicians also use advanced techniques to optimize function and activity for our patients.

We offer a range of procedures at Advanced Surgery Center of Long Island to help diagnose and treat gastrointestinal diseases. Click on each procedure to the left for more information.


A colonoscopy is a safe and minimally invasive procedure, in which a trained physician uses a special instrument called a colonoscope to view the colon and rectum.

Colon Cancer Screening

According to the American Cancer Society, colon cancer is the second leading cause of cancer-related death in the United States.

Upper Endoscopy

Sometimes referred to as upper GI endoscopy, esophagogastroduodenoscopy (EGD), or panendoscopy, an upper endoscopy is performed when a physician needs to inspect the lining of the upper part of the patient’s GI tract; including the esophagus, stomach, and duodenum.

Flexible Sigmoidoscopy

Similar to a colonoscopy, a Flexible Sigmoidoscopy occurs when a physician needs to examine the lining of the rectum and the lower part of the large intestine.

Epidural Steroid Injections

An epidural steroid injection is a minimally invasive treatment that delivers pain medicine quickly through a syringe.

Pre-Procedure Prep Information

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