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  • Gastroenterology
Accepting new patients

Appointments: Call 973-436-1408


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150 Park Avenue Gastroenterology

150 Park Avenue
Florham Park, NJ 07932
United States

Location Pin Icon

75 E. Northfield Road Gastroenterology

75 E. Northfield Road
Livingston, NJ 07039
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

Board Certification

  • American Board of Internal Medicine, American Board of Gastroenterology

Medical School

  • Boston University School of Medicine, Boston, MA


  • Liberal Arts/Medical Education, Boston University, Boston, MA


  • Internal Medicine, University of Michigan, Ann Arbor, MI


  • Gastroenterology, Yale New Haven Hospital, New Haven, CT and Advanced Endoscopy, Geisinger Medical Center, Danville, PA

About Me

Frederick K. Shieh, MD, specializes in gastroenterology with a special interest in advanced therapeutic endoscopy, disorders of the gastrointestinal tract, liver, pancreas and bile duct, biliary diseases, cancer screening and management, esophageal disease and gastrointestinal bleeding. He also has experience with advanced gastrointestinal techniques such as endoscopic ultrasound with fine needle aspiration and ERCP. Prior to joining Summit Health, he practiced in Scarsdale, NY.

Dr. Shieh has published articles and abstracts in prestigious, peer-reviewed scientific journals, including The American Journal of Gastroenterology, Gastrointestinal Endoscopy, Journal of Clinical Gastroenterology, Clinical Gastroenterology and Hepatology, and Pancreas. Dr. Shieh is a member of the American Society for Gastrointestinal Endoscopy, the American Gastroenterological Association and the American College of Gastroenterology.

"I believe in having a reciprocal relationship with my patients," says Dr. Shieh. "My goal is to partner with them in their care plan decisions, and to provide compassionate and effective care."

English, Mandarin Chinese

Hospital Affiliations

  • HUMC Mountainside
  • Cooperman Barnabas Medical Center