There is some info here:
http://www.se23.com/forum/showthread.php?tid=284

I go to the Brockley Road surgery. Since they were taken over by the Hilly Fields surgery after the old doctor there retired I have found the doctors that I have seen there very good. I have seen there some exceptionally nice and knowledgeable doctors (Speedy referral when other doctors in London had been terrible in referring me to specialists, sensible advice and pleasant attitude). I had an unpleasant experience with a GP in Peckham (who I read a few years later had eventually been struck off) so that's quite refreshing to have a very good GP service.