We strive to provide patient-focused, personalized, multi-disciplinary care for gastrointestinal (GI) cancers. Our specialized providers in Medical Oncology (chemotherapy and targeted therapies), Surgical Oncology, Radiation Oncology, Pathology, Molecular Pathology, Radiology, Interventional Radiology, Nuclear Medicine, Gastroenterology (both Hepatology and Interventional Endoscopy), Nutrition, and Integrative Medicine work together to achieve the best outcomes for our patients. We have weekly GI cancer tumor boards, where our specialists come together to discuss patients and patient care.

Dr. Lieu joined the University of Colorado School of Medicine faculty in July 2011. He trained in internal medicine at the University of Colorado, where he also served as a Chief Medical Resident. He completed his fellowship training in medical oncology at the University of Texas MD Anderson Cancer Center and served as the Chief Medical Oncology Fellow in 2010. He currently serves as the Director of GI Medical Oncology at the University of Colorado Cancer Center, the Vice-Chair of the National Cancer Institute Colon Cancer Task Force, and he serves on the National Comprehensive Cancer Network (NCCN) Panel for Neuroendocrine Cancers.


Monday: 8am - 5pm
Tuesday: 8am - 5pm
Wednesday: 8am - 5pm
Thursday: 8am - 5pm
Friday: 8am - 5pm
Saturday: Closed
Sunday: Closed
Monday: All day
Tuesday: All day
Wednesday: All day
Thursday: All day
Friday: All day
Saturday: All day
Sunday: All day

Qualifications and experience

Medical Oncology, Internal Medicine, Digestive System, Cancers - Pancreatic Cancer, Cancers - Cancer Prevention, Cancers - Cancer Medicine, Cancers - Biliary Cancer, Digestive System - Gastroenterology (Stomach, Bowel, General GI Problems), Cancers - Gastroenterologic Cancer (Colon, Stomach, Esophageal, Liver), Cancers - Colorectal Cancer, Cancers
Languages spoken
University of Texas M D Anderson Cancer Center Program (2011)

University of Colorado (University Hospital) Program (2005)

Medical School
Wake Forest University School of Medicine (2004)

University of Colorado (University Hospital) Program (2008)

University of North Carolina–Chapel Hill (NC) (2000)

Clinical interest for patients

I am interested in Gastrointestinal Cancers (Colorectal, Pancreatic, Gastric, Esophageal, Hepatocellular, Gallbladder, Bile Duct, Anal, Carcinoma of Unknown Primary), Drug Development (Experimental Therapeutics) and Translational Research.

Research interest for patients

I am focused on using a personalized approach in developing new anticancer drugs for GI cancers. I am particularly interested in anti-angiogenic therapy for colorectal cancers, novel drugs for RAS mutant colorectal cancers, as well as developing personalized therapeutics for young adults with colorectal cancer.