http://news.yahoo.com/s/ap/us_med_fake_doctor
Apparently this airline captain has been giving seminars, teaching courses and maintaining a highly respected blog among other things all the while claiming to be a cardiologist.
While he did attend a few years of medical school, he dropped out and never graduated.
upon learning that some of the educational credentials listed on his resume were false, United Airlines grounded him which ultimately resulted in his resignation.
To have an Airline Transport Pilot Certificate (ATP) among the numerous other requirements, the FAA states that an individual must be of good moral character...
therefore, technically, by openly misleading the AMA, and United Airlines with serious false claims - his ATP could be revoked.