Arizona small bowel obstruction expert witnesses are surgeons and gastroenterologists who clarify diagnosis, operative timing, and postoperative management of adhesive disease, hernias, and malignancy-related obstruction. Many practice in trauma and acute care surgery at Phoenix and Tucson academic centers, where high-volume emergency admissions shape standards. They evaluate imaging interpretation, resuscitation, NG decompression, operative decision-making, and complication causation.