Medical billing involves submitting claims to health insurance companies to receive payment for healthcare services. A medical biller is responsible for all paperwork related to patient records and works with insurance companies to ensure providers are paid for services. The medical billing process involves multiple interactions between healthcare providers and insurers that can take days to months to complete. Due to regulations like HIPAA, medical billing training and certification have become more important for medical billers to understand privacy rules and electronic billing standards. Many healthcare providers outsource their billing to third-party medical billing services in order to reduce costs and complexity.