Final answer:
Medicare Fraud is a major issue in healthcare, accounting for a significant percentage of national health expenditures.
Step-by-step explanation:
Medicare Fraud refers to the act of intentionally deceiving the Medicare program for personal gain. It involves activities like billing for services not provided, falsifying medical records, or receiving kickbacks. Medicare Fraud is a major issue in healthcare, accounting for a significant percentage of national health expenditures. While there is no specific percentage available, estimates suggest that Medicare Fraud costs the U.S. healthcare system billions of dollars each year.