Wheeler Heart and Vascular Center - Cardiology Address 3800 S. National Ave. Springfield, MO 65807 location Get Directions Phone: 417-875-2620 About Wheeler Heart and Vascular Center is southwest Missouri's premier outpatient facility for diagnostic and minimally invasive cardiac and vascular care with nuclear cardiology, echocardiography and vascular ultrasound, plus innovative programs for heart failure and cardiopulmonary rehab.Additional physician offices and services located here include the CoxHealth Sleep Center and the CoxHealth Vein Clinic. The facility is located on the southeast corner of National and Primrose Avenue in Springfield.