As an entry-level medical biller, your primary responsibilities are to review medical records and submit claims for services to insurance companies for payment. Your duties may include performing data entry, creating claims, billing a patient, filing records, writing appeals, responding to billing questions, coding records for services and procedures, and running reports. You must follow all privacy standards and policies when handling patient information. A medical biller may communicate with a physician or assistant to ensure records are accurate and meet billing guidelines. You can find work in hospitals, private practices, and any medical facilities that provide health care services.