I've been doing the 1099 evolution for my business the past three years. One thing that I've run into is when one of our staff have to go in for some sort of operation. The Doctor, the facility, etc. are all paid separately, including the Anesthesiologist - but it usually turns out that the anesthesiologist has to be paid in cash and most of the time which anesthesiologist is not known till the day of the operation. You then get a small little store bought receipt that you paid cash, but not who too, not tax ID or SS# and sometimes the facility is not listed on the invoice. Then I spend many hours on the phone chasing down who it was, and how to get his SS# or tax ID as I usually end up with some answering service. Just wondering if anyone else has run into this and what they are do to ensure they get a tax ID or SS #.