Mary A. Johnson Mary Johnson is currently the Medical Record Coding Program Director at Central Carolina Technical College, Sumter, South Carolina. Her background includes corporate training as well as on-campus and online platforms. Johnson also designs and impements customized coding curricula. Johnson received her Bachelor of Arts dual degree in Business Administration and Marketing from Columbia College, Columbia, South Carolina. Johnson is a Certified Professional Coder (CPC) credentialed through the American Academy of Professional Coders and is ICD-10-CM proficient. Read More Read Less