To excel as a Prior Authorization Representative at Express Scripts, you need strong knowledge of pharmacy benefits, medical terminology, and insurance processes, often supported by experience in healthcare or pharmacy settings. Familiarity with prior authorization systems, insurance verification tools, and HIPAA compliance is important, and some employers may prefer a pharmacy technician certification. Exceptional communication, attention to detail, and problem-solving skills help representatives navigate patient and provider inquiries efficiently. These qualifications ensure timely and accurate processing of medication requests, helping patients access care while maintaining regulatory and company standards.