Marina

Hanna

MD

Biography

Dr. Marina Hanna is a gastroenterologist who specializes in the care of patients with inflammatory bowel diseases, including Crohn's disease and ulcerative colitis. Her practice focuses on providing comprehensive, patient-centered care across all stages of disease, with an emphasis on individualized treatment strategies, disease monitoring, and long-term management. 

Along with her focus on inflammatory bowel diseases, she has completed research focusing on colorectal cancer screening and prevention, including peer-reviewed publications and presentations at national conferences. 

Board Certifications

• Internal Medicine, American Board of Internal Medicine - 2024
• Gastroenterology, Board Eligible, American Board of Internal Medicine

Education and Training

Fellowship, Gastroenterology
University of Washington
Seattle, WA
2026

Internal Medicine Residency
University of Washington
Seattle, WA
2023

Medical Degree
Tufts University School of Medicine
2020

Master of Science in Biomedical Sciences
Tufts University School of Medicine
2015

Honors

Resident and Intern Excellence in Teaching Award
University of Washington

Research and Clinical Interests

• Inflammatory Bowel Diseases, Crohn's and Ulcerative Colitis
• Colon Cancer Screening and Prevention

Publications 

Select pubs

• Hanna M, Sun Q, Bell-Brown A, Issaka RB. Colorectal Cancer Test Completion among Adults Aged 45 to 75 in an Integrated Healthcare System: A Retrospective Analysis. Cancer Epidemiol Biomarkers Prev. 2026 Apr 1;35(4):655-663. doi: 10.1158/1055-9965.EPI-25-1512. PMID: 41679770; PMCID: PMC13040215.
• Brian Ko, Marina Hanna, Ming Yu, and William M. Grady (2023). Epigenetic Alterations in Colorectal Cancer. Cancer Epigenetics, Chapter 10, 331-361. DOI: 10.1007/978-3-031-42365-9_10
• Hanna M, Dey N, Grady WM. Reply. Clin Gastroenterol Hepatol. 2023 Dec;21(13):3465. doi: 10.1016/j.cgh.2023.05.012. Epub 2023 May 20. PMID: 37211266.
• Hanna M, Dey N, Grady WM. Emerging Tests for Noninvasive Colorectal Cancer Screening. Clin Gastroenterol Hepatol. 2023 Mar;21(3):604-616. doi: 10.1016/j.cgh.2022.12.008. Epub 2022 Dec 17. PMID: 36539002; PMCID: PMC9974876.