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  • Comprehensive in-patient and out-patient services
  • Largest endoscopy suite in Suffolk County
  • State-of-the-art endoscopy equipment


The Endoscopy Department at St. Catherine of Siena Medical Center offers in-patient and out-patient evaluations and treatment for disorders of the esophagus, stomach, small bowel, colon and the biliary/pancreatic system.

Our Endoscopy Suite features state-of-the-art gastrointestinal facilities and equipment, including digital imaging, computer-generated reports, and flat-screen monitors.

Procedures offered include upper endoscopies, colonoscopies, endoscopic ultrasound with needle biopsies, stent placement, Endoscopic Retrograde Cholangiopancreatography (ERCP), stricture dilatation, argon plasma coagulation, and fluoroscopy.

What is Endoscopy?
An endoscopy is performed using a flexible tube devise that includes a tiny, computerized camera that sends images to a video screen. An open channel in the scope allows other instruments to be passed
through it in order to take tissue samples, remove polyps and perform other exams.

Upper Endoscopy: an exam of the upper gastric system, including esophagus, stomach and upper intestines.

Colonoscopy: An exam of the large intestines that uses a thin, flexible tube called a “colonoscope” to look inside the large intestines from thelower part (the rectum) all the way to the opening at the small intestine.

Sigmoidoscopy: an exam of the sigmoid colon with a shorter flexible tube. This procedure is less invasive than the colonoscopy.

Preparing for Your Procedure
Detailed instructions to prepare for the procedure will be given to you by your gastroenterologist or sent to you by mail. Please make  arrangements for a family member or friend to pick you up at the Endoscopy Suite after your procedure.

The medication given during the procedure may cause drowsiness, making it unsafe for you to drive home or take public transportation alone.

  • Do not eat or drink anything the day of your scheduled procedure.
  • If you are taking medicines, take them with a sip of water unless directed otherwise.
  • Please arrive 30 minutes before your appointment.