Jo-Ellen joined Express Scripts as a Sr. Accountant in 2000 and is responsible for the network audit and fraud program related to Commercial, Medicare Part D, Medicaid, Department of Defense and Workers’ Compensation clients. She provides leadership in determining the future strategy of prescription auditing and fighting fraud at Express Scripts. Jo-Ellen is a Certified Internal Auditor and a Certified Fraud Examiner. In addition, she holds a Certification in Risk Management Assurance from the Institute of Internal Auditors. Jo-Ellen also is president of the Missouri National Association of Drug Diversion Investigators.