

Gastroenterology
Marlyn Mayo, MD
Professor of Internal Medicine, Division of Digestive and Liver Diseases
Marlyn Mayo, M.D., is a Professor of Internal Medicine in the Division of Digestive and Liver Diseases at UT Southwestern Medical Center in Dallas, Texas, specializing in the diagnosis and management of acute and chronic liver diseases, with a focus on immune-mediated conditions including primary biliary cholangitis (PBC, formerly primary biliary cirrhosis), autoimmune hepatitis, primary sclerosing cholangitis, overlap syndromes, and liver diseases in pregnancy. She also manages complications su
35+
Years in Practice
Credentials
Board Certifications
- Internal Medicine
- Gastroenterology
Education & Training
- Baylor College of Medicine — M.D., 1990
- University of California, Irvine — Internship and Residency, Internal Medicine
- UT Southwestern Medical Center — Fellowship, Gastroenterology/Hepatology
Peer Recognition
- Castle Connolly — Top Doctor
2012-2026 (15 years)
2019-2025 (7 years)
2022-2023 (2 years)
Clinical Focus
Subspecialties
Conditions & Treatments
Practice Details
Hospital Affiliations
- UT Southwestern Medical Center
- Parkland Health & Hospital System
Languages
English
Experience
35+ years in practice