A charge entry clerk works for a medical facility and is responsible for reviewing data provided by patients and clients. In this career, your job duties include verifying the accuracy of the data provided, using that data for the billing of clients, and entering this data into the medical facility’s computer system. The qualifications needed for a career as a charge entry clerk include a high school diploma or GED certificate. To be a good charge entry clerk, you must be an administrative specialist. That means you need strong organizational and communication skills and experience in an administrative position.