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Jeffrey Okun, MD
out of 5
  • Gastroenterology
Accepting new patients

Appointments: Call 973-845-4160


Location Pin Icon

2 Brighton Road Gastroenterology

2 Brighton Road
Clifton, NJ 07012
United States

Clinical Expertise

  • Abdominal pain and bloating
  • Achalasia
  • Barrett’s Esophagus and ablation of Barrett’s
  • C. difficile infection
  • Celiac disease
  • Chronic constipation
  • Chronic diarrhea
  • Colon cancer
  • Colonoscopy
  • Difficulty swallowing
  • Diseases of the Pancreas and Bile Ducts
  • Disorders of the Esophagus
  • Diverticulitis
  • Dyspepsia
  • Eosinophilic esophagitis
  • Esophageal motility disorders
  • Esophageal strictures
  • Family history of colon cancer and other cancers
  • Gastroesophageal reflux and heartburn
  • Gastrointestinal bleeding
  • General Gastroenterology
  • Genetic syndromes with risk of colon cancer
  • H. Pylori infection
  • IBD
  • Infections of the gastrointestinal tract
  • Irritable Bowel Syndrome and Other Conditions
  • Liver disease
  • Multidisciplinary treatment of colon cancer
  • Nausea and Vomiting
  • Peptic ulcer disease
  • Removal of colon polyps
  • Screening for colon polyps and prevention of cancer
  • Screening for esophageal cancer
  • Small intestinal bacterial overgrowth
  • Zenker’s Diverticulum

Accepted Insurances

Always check with your health insurance carrier before scheduling any type of service. You can learn the details of your individual health insurance plan, including the amount of your copay, deductible, and coinsurance by visiting your health insurance company's website or by calling their customer service department. Click here to review our list of accepted insurance plans.

Training and Education

Board Certification

  • Internal Medicine
  • Gastroenterology


  • American Board of Internal Medicine


  • Advanced Cardiovascular Life Support (ACLS)

Medical School

  • Albert Einstein College of Medicine, Yeshiva University, Bronx, NY


  • Psychology and Premedical Science, Columbia University, New York, NY


  • Internal Medicine, Beth Israel Medical Center


  • Internal Medicine, New York Presbyterian Hospital - Weill Cornell Medical Center


  • Gastroenterology, Montefiore Medical Center

About Me

Jeffrey Okun, MD is a member of Summit Health's Gastroenterology department. In addition to seeing patients, Dr. Okun is an accomplished researcher with several academic publications. As a researcher at Columbia University Medical Center, he studied outcomes related to liver and lung transplantation. He has sat on education and curriculum committees as a fellow at Montefiore Medical Center and served as a member of the Fellow's Committee of the Crohn's and Colitis Foundation of America.

Dr. Okun is a member of several professional societies: the American Society for Gastrointestinal Endoscopy, the New York Society for Gastrointestinal Endoscopy, the American College of Gastroenterology, the American Gastroenterology Association, and the American Medical Association.

Dr. Okun treats a wide array of gastrointestinal and liver diseases, with a special interest in inflammatory bowel disease. His approach to care is to develop a partnership with his patients and to make sure all involved are comfortable with a treatment plan. He adheres to the philosophy of treating an individual, not just a medical condition. While not seeing patients, Dr. Okun enjoys spending time with friends and family, hiking, biking, and traveling.


Hospital Affiliations

  • St. Mary's Hospital
  • St. Joseph's Hospital
  • Hackensack University Medical Center