657 Central Avenue, Cedarhurst, NY 11516

Welcome to Five Towns Gastroenterology

Providing Care You Can Trust

At Five Towns Gastroenterology, we provide top-quality care for all your gastrointestinal health needs. As skilled, experienced gastroenterologists, Dr. Jay S. Fenster and Dr. Marc T. Fenster remain dedicated to helping patients experience better digestive health while providing the care needed to prevent, diagnose and treat gastrointestinal symptoms and disease. Using the latest technology for accurate diagnosis and minimally invasive procedures, we personalize every treatment plan for each patient’s individual needs.

Your well-being is our top priority, and we're here to make a positive difference in your digestive health journey. Schedule an appointment today for comprehensive and compassionate care. The services we provide include:

  • Gastrointestinal consultations
  • Colonoscopies
  • Endoscopies
  • Medication Infusion
  • Treatment for gastrointestinal disorders
  • Nutritional counseling

Thank you for choosing Five Towns Gastroenterology for your gastrointestinal health needs. We look forward to providing you with exceptional care and supporting your journey to better health.

Comprehensive digestive care
Explore Our Services

Colorectal cancer is the fourth leading cause of cancer-related deaths in the United States. Routine screenings, including colonoscopies, as recommended, help save lives.

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Join our growing family of patients and get started today.

Five Towns Gastroenterology | Endoscopy, Gastroenterology Consultation and Colonoscopy

Contact Us

Whether you or a loved one needs a routine colonoscopy or the diagnosis and treatment of other digestive symptoms and disorders, we can help.

Fill out our brief contact us form and we will get back to you as soon as possible.


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Read our patient reviews

Dr. Fenster is an amazing doctor. Extremely knowledgeable and patient and caring. The staff is great as well. It's a very well run office and it's clear that they all care - they treat people as people not as just another patient.



An excellent experience having my colonoscopy handled with such professional care. From start to finish a flawless procedure.



Dr. Fenster is a fantastic Doctor. He is great and a credit to his profession. His office staff is great to deal with. I highly reccomend him.



Care that supports you and your digestive health.

Five Towns Gastroenterology | Endoscopy, Colonoscopy and Medication Infusion
Five Towns Gastroenterology | Colonoscopy, Gastroenterology Consultation and Endoscopy
Five Towns Gastroenterology | Endoscopy, Medication Infusion and Gastroenterology Consultation
Five Towns Gastroenterology | Endoscopy, Gastroenterology Consultation and Colonoscopy

Personalized solutions

We recognize that every patient is unique and provide customized care to address individual needs.

Compassionate care

Your comfort and care are our top priorities. We provide skilled, compassionate treatment in a relaxing and comfortable setting.

Advanced technology

We utilize the leading-edge technology and equipment. This enables us to perform accurate diagnoses and deliver effective treatments with minimal discomfort and downtime.

Accessible, affordable treatment

Begin care without additional stress or delay. We take the time to listen to your concerns and create personalized treatment plans that address your specific symptoms and goals.

About Us

At Five Towns Gastroenterology we are dedicated to providing high-quality care for all your gastrointestinal health needs.