Accurately billing patients for health care services relies upon a strong knowledge of medical coding and billing techniques. Different hospitals, different insurance providers and even different doctors may use different systems for billing their clients. Medical coding and billing specialists keep up to date with the latest health care billing and finance information. These skills can be learned in specialized Medical Billing associate's degree programs in which students learn the basics of health care finance, office computer skills, medical terminology and the other skills needed to succeed in the field. An experienced medical billing specialist may earn over $40,000 annually, according to the U.S. Bureau of Labor Statistics, www.bls.gov.