Any individual or organization, public or private, with whom the Centers for Medicare and Medicaid Services (CMS) has a contractual arrangement to contribute to or participate in the Medicare survey and certification process. The state survey agency is the most common example of a CMS agent as established through the partnership role that the state agency (SA) plays in the survey process under the provisions of §1864 of the Act. A private physician serving a contractual consultant role with the SA or CMS regional office as part of a survey and certification activity is another example of a CMS agent.

Any project where Centers for Medicare and Medicaid Services (CMS) specifies the subject, size, space, data source, analytical techniques, educational intervention techniques, or impact measurement model. These projects may be developed by CMS in consultation with networks, the health care community, and other interested people.

Medicare Uniform Institutional Provider Bill (insurance claim) form used for submission after hospital services have been provided to a patient. This is commonly known as the Uniform Bill (UB-04) institutional claim form, which replaces the Uniform Bill (UB-92) claim form. See Uniform Bill (UB-04) claim form.

Health Insurance Claim Form, a uniform professional insurance claim form used for submission after medical services have been provided to a patient. See Health Insurance Claim Form (CMS-1500).