Who called from 4422435073

I am tired of getting calls from this number. It comes up on my caller ID as medicareinfo.  When I answer no one is there. Also they have not left a message.

Called cell phone, left no voicemail. Cell has no caller ID. I live in NJ. Screen all calls. A legitimate caller will leave a message with their name, company name and valid number to call.

Calling my phone constantly on 5/17/16

Called cell phone again today. Left no voicemail. I live in NJ. Know no one in California and do business with no one in California.

Caller calls every day; does not say anything when my voicemail picks up.