Attractive female doctor in hospital with female patient


Gastroenterology is a medical specialty that deals with diseases of the digestive system. A gastroenterologist can diagnose and treat conditions that affect any part of the digestive tract, including the esophagus, stomach, intestines, liver, gallbladder and pancreas. This branch of medicine covers everything from gas and abdominal pain to Crohn’s disease and colon cancer.


  • Upper and Lower Endoscopy
  • Diagnostic Colonoscopy
  • Nutrition and Nutritional Support


  • Bonnie Cheng, MD
  • Steven David, MD
  • Ravishankar Ramamoorthy, MD
  • Lisa Stevens, MD
  • Jonathan Stillman, MD
  • Joseph A. Zangara, MD
For more information or to schedule an appointment with Wayne Surgical Center, please call 973.709.1900