I get these calls at least once a week but have an answering machine that screens calls.
https://www.consumer.ftc.gov/blog/2013/07/robocall-scams-push-medical-alert-systems
NEVER TRUST ANYONE CALLING YOU >>> NEVER GIVE OUT ANY SORT OF INFORMATION TO STRANGERS OVER THE PHONE >>> MOST OF THE CALLS YOU WILL GET EACH DAY ARE FROM SCAMMERS >>> ASSUME THAT EVERY CALL IS FROM A SCAMMER.