looking for heart surgeons for aneurysm removal from the heart and a bypass

IHow can I find the best heart surgeons in the USA for Doctor recommended aneurysm removal 2"x 2" in the lower left part of the heart to include a bypass.  Our Cardiologist has recomended surgery and the surgeon he has refered us to has never seen an aneurysm locate in this portion of the heart nor has he seen one so large,  This surgery would include a total bypass as well.  We would like to get two other opinions.