Gregory Wiener, MD

Dr. Gregory Wiener, MD
Dr. Gregory Wiener, MD


  • Gastroenterology

Areas of Expertise

  • Gastroenterology
  • Internal Medicine
353 Church Ave
Ste A
Chula Vista, CA 91910

On Medical Staff At

Languages Spoken

  • Spanish
  • English


Dr. Gregory Wiener is fellowship-trained in gastroenterology and specializes in helping patients with digestive tract issues. He manages many gastroenterological conditions, such as constipation, diarrhea, IBS, colitis, swallowing issues, liver disease, Hepatitis C, fatty liver and cirrhosis. In addition, he provides colon cancer prevention and digestion/nutrition consultations. Dr. Wiener can also offer patients access to clinical trials, providing the latest medications and treatment options. He has been practicing since 1990 and speaks Spanish, French and English.

Board Certifications

  • American Board of Internal Medicine, Gastroenterology, 1987
  • American Board of Internal Medicine, Internal Medicine, 1985

Medical Education

  • University of El Salvador, MD, 1982


  • Baylor College of Medicine, Internal Medicine, 1983


  • Baylor College of Medicine, Internal Medicine, 1985


  • Wake Forest University Bowman Gray School of Medicine, Gastroenterology, 1987
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