Southern Careers Institute’s Campus of Waco: You’ll Leave With the Hands-On Training and Certifications You Need to Compete in Waco, Texas! The Southern Careers Institute in Waco is conveniently located just minutes south of Downtown Waco, the county seat of McLennan County. While this campus is located in the city, it still has the supportive, family-like environment that Southern Careers Institute is known for. SCI’s college in Waco, Texas offers Medical Billing and Coding, Medical Office Specialist, and Medical Assistant. SCI’s Waco Campus The Waco Southern Careeers Institute campus is located in central Waco. SCI will be offering students in Waco programs including medical office assistant, medical billing and coding, and medical assistant. These programs are pre-enrolling now, so call 833-SCI-TEXAS and speak with an Admissions Representative and learn more about the new SCI or come and visit our Campus located at 3700 South IH35, Waco, TX 76706.