Construction Updates New Clinic in SpringfieldCoxHealth National and Sunshine clinic is under construction.This clinic will be located at 1819 S. National Ave. in Springfield, at the intersection of Sunshine Street and National Avenue. This new 33,000-square-foot clinic will open in 2023 and feature:Primary care for ages 65+Urgent CareThis location will offer Save My Spot for Urgent Care, which allows patients to request a time to be seen online prior to arrival and wait at home.