Vivian Ortiz, MD

Gastroenterologist, Transplant Hepatologist

Vivian Ortiz

Appointment Options

Whether you’re seeking a new patient appointment or exploring treatment options and looking for a second opinion, our Siteman care coordinators are ready to assist you.

My Locations

Center for Advanced Medicine

Center for Advanced Medicine

On WashU Medicine Campus
4921 Parkview Place, Saint Louis, MO 63110

Expertise & Training

Clinical Expertise

  • As a member of our liver cancer specialist team, Dr. Ortiz cares for patients diagnosed with Transplant Hepatology and liver tumors through treatment and recovery.

     

Primary Academic Title

Assistant Professor of Medicine, Division of Gastroenterology, WashU Medicine

Board Certification

  • 2019: American Board of Internal Medicine
  • 2022: American Board of Gastroenterology

Training

  • 2016 - 2017: Intern in Medicine, Yale-New Haven Hospital, New Haven, CT
  • 2016 - 2017: Resident in Medicine, Yale-New Haven Hospital, New Haven, CT
  • 2019 - 2022: Fellow in Gastroenterology and Hepatology, Hospital of the University of Pennsylvania, Philadelphia, PA
  • 2022 - 2023: Transplant Hepatology Fellow, Mayo Clinic, Rochester, MN

Education

  • 2010: BS, Brown University, Providence, RI
  • 2016: MD, Meharry Medical College, Nashville, TN

Research & Selected Publications

Research Interest

My research focuses on post-transplant recurrence in cholangiocarcinoma, especially in those who undergo the pre-liver transplant therapy protocol. I am also interested in outcomes and mechanisms of resistance after immunotherapy in liver tumors.

Research Publications

Mycobacterium fortuitum : A Liver Mass in Luck
Authors:

Ortiz V, Itani M, George IA

Journal & Year:

Am J Gastroenterol | 2026

Rethinking Immune Check Point Inhibitors Use in Liver Transplantation: Implications and Resistance
Authors:

Ortiz V, Loeuillard E

Journal & Year:

Cell Mol Gastroenterol Hepatol | 2025