← BPO Medical Billing, Administration CMS regulations, Payment process, Denial process, Correspondence. PIA(Patient Inquiry Application, Mediare and Medicaid Billing processAdministration work $10 / Hour $30 minimum budget Skills & Expertise Related Work Collections Reviews For This Service (No Feedback) ← Previous Next → Browse Similar Freelance Experts Billing ServicesDesign ProcessPatient EducatorsPayment Gateway Integration Services