This course introduces the U.S. healthcare system and emphasizes the critical role of medical billing in the reimbursement process. Students will examine key insurance models, including private, government, and managed care plans, and how each impacts billing procedures. The course also covers core administrative processes such as patient registration, accurate data collection, and eligibility verification. Through practical examples, students will gain a foundational understanding of how accurate front-end processes support clean claims, timely reimbursement, and overall revenue cycle success.