Structural Heart Clinic Address 3800 S. National Ave., Suite 400 Springfield, MO 65807 location Get Directions Phone: 417-875-2646 About The Structural Heart Clinic is located in the Wheeler Heart and Vascular building at CoxHealth. This clinic focuses on rapidly advancing therapies and evolving guidelines. We offer transcatheter valve replacement for severe aortic stenosis (TAVR), patent foramen ovale closure, left atrial appendage closure device, valve disease surveillance and mitral repair.