1099-R for Massachusetts mutual life ins does not have a Federal ID #. I called them and they don't know either. Where do i get that?

Look at this link as it is called a Payer's TIN (same as Federal ID)  <a rel="nofollow" target="_blank" href="https://www.mass.gov/service-details/understanding-your-form-1099-r-msrb">https://www.mass.gov/service-details/understanding-your-form-1099-r-msrb</a>

You likely talked to someone who had no idea what an EIN is. Usually you can find that info on line. Its public information. Try here:

https://eintaxid.com/company/041590850-massachusetts-mutual-life-insurance-co/

ron.