Marjun Philip Duldulao, MD, completed his general surgery training in Southern California at Loma Linda University Medical Center. He has been published in several peer-reviewed journals and received numerous awards while conducting research fellowships at City of Hope. Dr. Duldulao's research focuses on the identifications of markers associated with pathologic complete response in rectal cancer patients treated with chemoradiation therapy. Dr. Duldulao received comprehensive  colorectal training in New York at New York Presbyterian/Weill Cornell, Columbia Presbyterian Medical Center, and Memorial Sloan-Kettering Medical Center.

Dr. Duldulao specializes in minimally invasive and robotic procedures for the management of a variety of colorectal diseases, including colon and rectal cancer, polyps, inflammatory bowel disease, diverticulitis, and the treatment of complex anorectal and pelvic floor disorders. His clinical research interests include improving outcomes in colorectal surgery, minimally invasive colorectal surgery, and inflammatory bowel disease.