So about that soon to be famous poll (cross posted from another thread for easy reference): I am sorry, but other than the DPMA's obvious guiding bias (founded in February of 2011): Guiding Principles | Doctor Patient Medical Association There poll is obviously biased as well: Here is their methodology- First, the poll has a huge selection bias* as it is limited to physicians who have their own fax (Not a given. Many doctors don't have their own fax line in an office. For example, EM physicians work out of the department. The fax machines there are for patient business only.) This is evident by the fact that EM isn't represented as a group in the respondents: DPMA Foundation : Physician Attitude Survey Demographics So, the one specialty that is in the thick of this thing ("Patients getting all their care in the ED") isn't represented in this poll. The survey also has an extremely low power. Of the 16K successful faxes they delivered, less than 5% bothered to respond. So could we conclude from that number that 95% of physicians are not worried about ACA? Probably not. However, it leads to a large degree of statistical doubt. The "fax bias" is further borne out in the responses they got. 81% in solo or group practice? So already, it is dubious to say that a large number of physicians will leave medicine..... What is more accurate is "a large number of physicians in solo or small group practice" will leave medicine. That is far from representative of the whole and it is done with a rather large selection bias (via the fax). *The concepts I bolded "selection bias" and "power" are true statistical data properties and you can double check my logic on that.