An automated voice call said this is for Emma Wheeler who needs a lawyer. My complaint is that she is using my social security number, and I want to know how they got my phone number

>> My complaint is that she is using my social security number <<

Contact your local Social Security office IMMEDIATELY.
Sign up for ID Theft & credit protection NOW.

>> and I want to know how they got my phone number  <<

That is unimportant.  There are many ways to get your phone number.