The Centers for Medicare & Medicaid Services (CMS) is a department of Health and Human Services (HHS). The current administrator is Seema Verma, appointed by President Donald Trump.

CMS oversees the Medicare and Medicaid programs. CMS collects and analyzes data, produces research reports, and works to eliminate instances of fraud, waste and abuse within the health care system.

The No. 3 denial reason code from Medicare among HME providers as reported by RemitData is CO57: Payment denied/reduced because the payer deems the information