The HCFA moniker is a decades-old name that is no longer used except for the HCFA-1500 form. The name comes from the Health Care Financing Administration (HCFA) which was created in 1977 to combine under one administration the oversight of the Medicare program, the federal portion of the Medicaid program, and related quality assurance activities.
In July 2001, agency known as HCFA was renamed the Centers for Medicare and Medicaid Services or what today is abbreviated as CMS.
Nonetheless, the HCFA-1500 form name survived the 2001 renaming exercise and is still used today for physician and non-facility bills.