First assistant: cases include CABG, aortic and mitral valve repair/replacement, complex aortic repair, aortic dissection, ECMO Insertion, IABP insertion, Impella, David procedure, Ross procedure, Robotic MV. Under the general guidance of the medical director, the Nurse Practitioner/Physician Assistant will evaluate, diagnose, and treat patients with diseases and adverse health conditions following the written guidelines approved by the department.