Center for Health Improvement Address 960 E. Walnut Lawn Suite 203 Springfield, MO 65804 location Get Directions Phone: (417) 269-3900 About The Center for Health Improvement is located inside the CoxHealth Surgery Center. The Center for Health Improvement is committed to making our communities healthier by better managing chronic conditions. We provide tobacco cessation programs, health education classes and other resources to help you improve your health and quality of life.