Cox Health Center Steeplechase. Family Medicine, Nursing (Nurse Practitioner) • 9 Providers. 1530 E Republic Rd, Springfield MO, 65804. Make an Appointment. (417) 269-1362. Telehealth services available. Cox Health Center Steeplechase is a medical group practice located in Springfield, MO that specializes in Family Medicine and Nursing (Nurse ....