For more than 60 years, QS2 Medical Billing and Consulting, LLC has been specializing in medical billing and office management. Based in Phoenix, Ariz., its coders are Certified Medical Coders (CMC), Registered Medical Coder (RMC) and HIPAA certified. The firm adheres to the Office of the Inspector General (OIG) guidelines and maintains its compliant policies and procedures. It offers an array of services, such as practice management system, revenue/receivables management, report review, report analysis, report interpretation, credentialing process, referral services, insurance contract review and negotiation. QS2 Medical Billing and Consulting, LLC is a member of the American Medical Billing Association (AMBA).