The cutoff date for people turning age 65 to enroll in a Plan F Medicare supplement is January 1, 2020. After that date, new Medicare beneficiaries who turn 65 will not be able to enroll in Plan F. However, if you were eligible for Medicare before January 1, 2020, you may still be able to enroll in Plan F. It's always a good idea to check with your insurance provider or a Medicare representative for the most up-to-date information. Let me know if there's anything else I can help with!