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Ioannis Giannikopoulos, MD, FACG

  • November 8, 2023
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Tri-city Regional Medical Center, Hawaiian Gardens, CA 90716
Gastroenterology, Internal Medicine


10941 Firestone Blvd.
Norwalk CA 90650

Work Phone: (562) 864-4200
Personal Email:


Dr. Ioannis Giannikopoulos is a gastroenterologist in Los Angeles, California. He is affiliated with multiple hospitals in the area, including St. Francis Medical Center and Tri-City Regional Medical Center. He received his medical degree from University of Athens and has been in practice for 47 years. He is one of 9 doctors at St. Francis Medical Center and one of 7 at Tri-City Regional Medical Center who specialize in Gastroenterology.
Specialty & Clinical Interests
Gastroenterologist: General Gastroenterology

Hospital Affiliation
St. Francis Medical Center
Tri-City Regional Medical Center

Education & Medical Training
Grant Hospital of Chicago
Residency, General Practice, 1976–1977
John H. Stroger Hospital of Cook County
Residency, Internal Medicine, 1977–1979
John H. Stroger Hospital of Cook County
Fellowship, Gastroenterology, 1979–1981
University of Athens
Class of 1967

Certifications & Licensure
American Board of Internal Medicine
Certified in Gastroenterology
American Board of Internal Medicine
Certified in Internal Medicine
CA State Medical License
Active through 2013

Awards, Honors & Recognition
Fellow (FACG), American College of Gastroenterology

Publications & Presentations
Vitamin D receptor FokI gene polymorphisms may be associated with colorectal cancer among African American and Hispanic participants.
Sarkissyan, M.,Wu, Y.,Chen, Z.,Mishra, D. K.,Sarkissyan, S.,Giannikopoulos, I.,Vadgama, J. V.
Clinical significance of incidental colorectal wall thickening on computed tomography scan in African-American and Hispanic patients.
Padda, M., Vadgama, J., Sandhu, P., Dev, A., Giannikopoulos, I.
Correlation between serum alanine aminotransferase activity and age.
Padda, M., Dev, A., Giannikopoulos, I.