HonorHealth Cardiac Arrhythmia Group – Sonoran Crossing is a dedicated team of cardiac electrophysiologists, physician assistants, nurses, and technicians, who as a group, are committed to treating and caring for patients experiencing problems with their heart's rhythm and electrical signaling. The first cardiac electrophysiology (EP) only group in Arizona, this team of physicians are also on the forefront of EP technologies nationwide, contributing their expertise to clinical research focused on arrhythmias, and to the continuing development of many of the devices and treatments that have come into widespread use to treat heart rhythm problems.