Ivan Friedrich, MD

Ivan Friedrich, MD


 My goal is to ultimately assist my patients achieve healthy, happy, satisfying lives. I find satisfaction in getting to know them and developing relationships with them as well as their families.  

Locations & Appointments
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Primary Areas of Practice

  • Gastroenterology

Other Areas of Practice

  • Cancer Prevention


  • Cancer Screening
  • Capsule Endoscopy
  • Colonoscopy
  • Endoscopy
  • ERCP
  • Fecal Microbiota Transplant
  • Feeding Tube (Percutaneous Endoscopic Gastrostomy; PEG) Placement
  • Polypectomy

Conditions Treated

  • Abdominal Pain
  • Acid Reflux
  • Barrett's Esophagus
  • Celiac Disease
  • Cirrhosis
  • Colitis
  • Colon Cancer
  • Colon Polyps
  • Constipation
  • Crohn's Disease
  • Diarrhea
  • Digestive Diseases
  • Diverticulitis
  • Esophageal Cancer
  • Fatty Liver Disease
  • Gall Stones
  • Gastrointestinal Bleeding
  • GERD (Gastroesophageal Reflux Disease)
  • Heartburn
  • Hemorrhoids
  • Hepatitis
  • Inflammatory Bowel Disease (IBD)
  • Irritable Bowel Syndrome (IBS)
  • Liver Disease
  • Pancreatitis
  • Peptic Ulcer Disease
  • Rectal Bleeding
  • Stomach Cancer
  • Stomach Disorders
  • Swallowing Disorders
  • Ulcerative Colitis


  • Gastroenterology Group of Northern NJ


    420 Grand Ave Englewood, NJ 07631

    Main: 201-569-7044
    Fax: 201-569-1999
    8:00 AM
    5:30 PM
    8:00 AM
    5:30 PM
    8:00 AM
    5:30 PM
    8:00 AM
    5:30 PM

About Ivan Friedrich

Dr. Friedrich is board certified in gastroenterology and in internal medicine. He has particular interest in abdominal and liver disorders, ulcerative colitis, Crohn's disease, irritable bowel syndrome, and colon cancer screening. He trained in gastroenterology, endoscopy, and liver diseases at Mount Sinai Hospital and the Veteran's Administration Hospital, both in New York City. He is a member of the American Gastroenterological Association and has published in the Journal of the American College of Gastroenterology. Dr. Friedrich practices at the Gastroenterology Group of Northern New Jersey.

Honors & Awards

2019: Jersey's Best: New Jersey's Top Doctors in Cancer Care

2018-2014, 2011-2000: Castle Connolly Top Doctor New York Metro Area

Professional Memberships

American Gastroenterological Association

Education & Degrees

MD: Albany Medical College


Montefiore Hospital


Mount Sinai Hospital, Gastroenterology

Board Certifications

  • Gastroenterology
  • Internal Medicine


Friedrich IA,KorstenMA, Gottfried EB: Necrotizing amebic Colitis with Pseudomembrane Formation; Am J Gastroenterology 74:529-531, 1980

Friedrich IA, Wormser GP, Gottried EB: The Association of Recent Streptococcus Bovis Bacteremia with Colonic Neoplasia: Arm J Gastroenterology 77:82-1982

Friedrich IA, Wormser GP, Gottried EB: The Association of Remote Streptococcus Bovis Bacteremia with Colonic Neoplasia, Military Medicine 147:584,1982