This page provides basic information about being certified as a Medicare and/or Medicaid home health provider and includes links to applicable laws, regulations, and compliance information. A certified Home Health Agency (HHA) is an agency or organization which is primarily engaged in providing skilled nursing services and other therapeutic services; and has policies established by a group of professionals (associated with the agency or organization), including one or more physicians and one or more registered professional nurses, to govern the services which it provides.