South Island Gastroenterology Associates, PC

Welcome to Our Practice

Welcome to South Island Gastroenterology Associates, PC, Your Gastroenterologist in Lawrence, NY

Welcome! The gastroenterology professionals at South Island Gastroenterology Associates, PC are pleased to welcome you to our practice. We want all our patients to be informed decision makers and fully understand any health issues you face. That's why we've developed a website loaded with valuable information about gastroenterology, endoscopy and digestive problems and treatments. We offer a full range of services and treatments, including Colonoscopy, Colon Cancer Screenings, Upper Endoscopy, Heartburn, Crohn's Disease, Ulcerative Colitis, Constipation, Diarrhea, IBS, Rectal Bleeding, and so much more to keep you healthy.

Our website also provides you with the background about our gastroenterologists, staff, office hours, appointment procedures, maps, directions to our office in and other useful information. We know how hectic life can be and are committed to making our practice convenient and accessible. And we want you to feel confident that when you choose South Island Gastroenterology Associates, PC, you're working with professionals who are qualified, experienced and caring.

Please take a few moments to look through this site to get a better feel for South Island Gastroenterology Associates, PC's capabilities and services. We also invite you to email or call our office at any time to request an appointment or ask any questions. Thank you.

Appoinment Request

Schedule your next appointment effortlessly by filling out the form, and we'll ensure you receive prompt confirmation and exceptional service.

Click Here
Patient Forms

Streamline your visit by completing our convenient online patient forms – a simple and secure way to provide us with essential information before your appointment

Click Here
Colon Prep

Colon prep involves following a special diet, taking laxatives, and sometimes using enemas to clear the colon before medical procedures like a colonoscopy.

Click Here

Meet Our Staff

Steven Kadish, MD

Dr. Steven Kadish graduated from Albert Einstein College of Medicine and received his gastroenterology training at Montefiore Medical Center. He then had further fellowship training in advanced endoscopic procedures at the University of Pennsylvania. He is often sought after by both patients and physicians alike to perform both basic and specialized procedures. Dr. Kadish is an advocate of healthy nutrition and exercise. He enjoys cycling and many other sports. He and his partner are dedicated to providing the highest level of care that is individualized, and compassionate.
Read More
Jonathan Zinberg, MD

Dr. Jonathan Zinberg graduated from Columbia University College of Physicians and Surgeons. He trained at Columbia Presbyterian Medical Center and at Montefiore Medical Center. He and his partner are dedicated to providing the highest level of care that is individualized, and compassionate.
Read More

Radiofrequency Ablation RFA for Barrett's esophagus

Procedures that we offer:

Colonoscopy
Flexible Sigmoidoscopy
Upper Endoscopy
Endoscopic Ultrasonography
Balloon Enteroscopy
Capsule Enteroscopy
Esophageal Dilation
Endoscopic Retrograde Cholangiopancreatography
In-office infusions of biologics for the treatment of IBD are offered in comfortable surroundings
Percutaneous Endoscopic Gastrostomy
Self Expanding Metal Stents (SEMS)
Argon Plasma Coagulation
pH testing utilizing BRAVO