Billing Specialist. REPORT TO Director of Business Office. DEPARTMENT Business Office. HOURS Monday – Friday 8:00-4:30. LOCATION SMDH-Business Office. Major Roles & Responsibilities. Purpose. The Billing Specialist will maintain and control all patient accounts, demonstrating knowledge of billing practices, rules and regulations of all Third Party payers. The Billing Specialist acts as a liaison between the patient and the hospital working with a...