Incorporated in 1983 in Atlanta, Ga., American Medical Accounting & Consulting (AMAC) is one of the leading firms in the radiation oncology industry. The firm is a provider of billing and consulting services to physicians, hospitals, freestanding facilities, universities and private practices throughout the United States. It works closely with vendors and corporations supplying goods and services to the radiation oncology community. American Medical Accounting & Consulting operates as a liaison between providers of services and various payors, including CMS, managed care organizations and third party payors.