He then went on to subspecialty fellowship training in colon and rectal surgery at the University of Toronto under the mentorship of Drs. Robin McLeod, Zane Cohen, Helen Macrae, Richard Reznick, Ted Ross, and Marcus Burnstein. While in Toronto, Dr. Raval also completed a Master of Science in Clinical Epidemiology. He was recruited to the Department of Surgery at St. Paul’s Hospital and UBC in 2006.

Dr. Raval also works closely with radiation and medical oncologists at the B.C. Cancer Agency (BCCA). Within the BCCA’s Surgical Oncology Network, he is the chair of the Colorectal Surgery Tumour Group, whose mandate is to promote excellence in the surgical treatment of colorectal cancer for British Columbians. He has headed a number of initiatives through the BCCA, including the development of Colorectal Cancer Care Pathway maps for patients and the development of cancer management guidelines for colorectal cancer. Within the field of colon and rectal surgery, Dr. Raval has a particular interest in laparoscopic colorectal surgery, colorectal cancer (including minimally invasive transabdominal and transanal) surgery, colonoscopy, inflammatory bowel disease, and the pelvic pouch procedure. His research interests include patient outcomes in these areas. Dr. Raval also enjoys teaching medical students and residents in general surgery and other specialties. He also teaches other general surgeons in special operative techniques for colon and rectal surgery.