We're doing it. We added a Medicare-only section to our intake form to collect some data, it's not that big a deal, but it is annoying. Only on E&M visits do you have to do it. There are measures that must be done at every visit, and others that are only once per year.
At every visit we do an NRS pain score, enter whether or not patients with a 715 dx of arthritis report functional loss, and attest to keeping an accurate med record. Once yearly we do a few other measures: BMI, balance, new fractures, and smoking. Oh.. and on procedures where 77002 or 77003 is billed, we indicate the fluoro time (turns out to only be hips, knees, and shoulders for us). I set up a template in our EMR to automatically enter the appropriate CPT codes as you do the data entry. It takes longer for the EMR to process all the data and pop it into the note than it does to physically enter. We use EMDs.