CMS Mandates Vaccines for Staff of Medicare and Medicaid Providers and Suppliers


On Nov. 4, 2021, CMS published an Omnibus COVID-19 Health Care Staff Vaccination interim final rule, requiring Medicare providers and some suppliers to ensure their staff are fully vaccinated by January 4, 2022 (CMS Mandate). The CMS Mandate covers a wide swath of personnel at almost all Medicare providers and some suppliers—all of which are subject to the Medicare certification requirements

Providers and Suppliers Covered

What is Required

How Will CMS Enforce this Mandate?

The CMS Mandate does not establish any additional reporting requirements, even for facilities subject to quality reporting measures.

Enforcement will be based on

Who is Included in “Staff” Required to be Vaccinated?

Who is Exempt?

What is Fully Vaccinated?

No booster shots are required to comply with the CMS Mandate.

In the event a staff member receives a vaccine outside the U.S. that is neither FDA approved nor authorized, CMS defers to the CDC guidance which generally advises that individuals who have completed a vaccine series listed for emergency use by the WHO should not also obtain another FDA-approved or authorized series in the U.S.

How Does the CMS Mandate Work with the OSHA and other Federal Vaccine Requirements

Facilities subject to the CMS Mandate must comply with the CMS rule first. If a health care provider or supplier is not subject to the CMS Mandate, then the Executive Order on Ensuring Adequate COVID Safety Protocols for Federal Contractors or the OSHA COVID-19 Healthcare Emergency Temporary Standard applies. If none of the above rules apply (CMS Mandate, Executive Order or OSHA ETS), then employers with more than 100 employees are subject to the OSHA Employer Emergency Temporary Standard.


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National Law Review, Volume XI, Number 309