I called empire blue cross and they confirmed that it is a valid phone call , just a reminder

supposedly, empire blue cross left this voicemail at my home anwering machine.  The voicemail said to call this number 855-473-9986 for an important health reminder.  I called and an automated system started - sounding official enough - saying that I had reached empire blue cross blue shield and it asked to verify who I was by entering "the number we left our message at" when I did, it did match it to my name.  so far so good, then I got very suspicious because next it asked me to enter the year I was born in.  I refused to enter it, the system asked again, the third time that I refused to enter anything, it said we're sorry we 're only asking this information to protect your identity or something like that.  I don't know why they already had my name and phone number, probably also my address, then my birthyear?!?!  Even if it was a legit call from Empire Blue Cross, with all the identify theft out there, they should not use this type of mechanism to provide service to their customers.

Automated health info line. Reminds you to schedule regular check-ups.