Got a fix from the great Claire at the Help Desk! If you pick one HCFA, manually make the change that you want, then click print form that saves the info. and the rest of your HCFAs should be prepopulated with the correct info. I just chose one patient, opened up account info., clicked on Print CMS-1500 at the bottom right, clicked on EIN, then clicked print form. Then all of the rest of my HCFAs had EIN chosen rather than SSN. Thank goodness b/c it would have been a serious problem if I had to change each and every HCFA. BTW, I did the same thing for box 13 - typed in Signature on File and now that is prepopulated in the other HCFAs. I've only opened 2 other HCFA so I hope this continues to work. I don't know if it needs to be done on every workstation computer...