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Dennis Han, MD
out of 5
  • Gastroenterology
Accepting new patients


Location Pin Icon

140 Park Avenue Gastroenterology

140 Park Avenue
Florham Park, NJ 07932
United States

Clinical Expertise

  • Abdominal pain and bloating
  • Achalasia
  • Advanced Endoscopy
  • 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
  • Infections of the gastrointestinal tract
  • Irritable Bowel Syndrome and Other Conditions
  • 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

Medical School

  • Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey (UMDNJ), New Brunswick, NJ


  • Chemistry, College of Arts and Sciences, New York University, New York City, NY


  • Internal Medicine, Montefiore Medical Center, Bronx, NY


  • Gastroenterology and Advanced Endoscopy, Northwell Health - Northshore, LIJ, Manhasset, NY

About Me

Dennis Han, MD is part of Summit Health’s Gastroenterology team. Dr. Han specializes in gastroenterology with a special interest in advanced therapeutic endoscopy. He treats a wide array of gastrointestinal conditions including diseases of the pancreas and bile ducts, Barrett’s esophagus, and inflammatory bowel disease. In addition, he performs endoscopic procedures for screening and management of gastrointestinal cancers. Dr. Han is extensively trained in advanced therapeutic and diagnostic procedures including endoscopic ultrasound (EUS), endoscopic retrograde cholangiopancreatography (ERCP), endoscopic therapy for Barrett’s esophagus, large colon polyp removal (endoscopic mucosal resection) and endoscopic stenting.

Dr. Han’s research interests include clinical outcomes in pancreatico-biliary disease and advanced endoscopic imaging in Barrett’s esophagus. His work has been published in peer-reviewed journals including Gastrointestinal Endoscopy, Endoscopy and Journal of Clinical Gastroenterology, and he has presented at conferences across the country. He is a member of the American Society of Gastrointestinal Endoscopy and American College of Gastroenterology.

Dr. Han’s patient care philosophy is to provide the best individualized treatment options to address each unique patient.

English, Korean

Hospital Affiliations

  • Morristown Medical Center