Who called from 6312770622

Called my land line, no message left.

Came up as Thomas M N
No message

Someone with an accent called me by name and asked if I am still having back problems. He then asked if I was on Medicare. Next he asked me the name of the doctor treating my pain and I told him if my doctor didn't refer him,  I was not answering any more questions.

No Message...blocked call. Area code 631 is not MN.

Received call.  No message.  As noted above in another post, Caller ID identified as Thomas M N