There are 13 episodes in all six of the series.
There are thirteen episodes.
Thirteen, same as the previous four series.
If you mean full episodes then he had 47 episodes. If you include Christopher Eccelstons last episode 'The Parting of the Ways', then that would be 48, but that doesn't count as he only came around in the last few minutes of the episode.
Doctor Who has 8 seasons. Each season has 12-24 episodes.
Including Series 7 (which airs later this year), the 11th Doctor has been in 45 episodes of Doctor Who and is played by Matt Smith.
200 episodes are on cbbc.
All episodes of the new series (Doctors 9-11) and many specials from the classic series are available to watch on Netflix.
There are 26 seasons of "classic" Doctor Who from 1963-1989 with 695 episodes including the 20th anniversary special. Note the original Doctor series aired a single story in 6 or 4 episodes each in 25 minute segments. The new series typically has 50-minute length episodes.
Series 7 (2012)The next series begins in Autumn 2012. Many of the episodes are still in production.In series 7 there will be 13 episodes and a Christmas special.
Currently the plan is to have 17 episodes in each of the last two seasons (series as you call them in the UK), five and six.
Up to Journey's End 198 stories 751 Episodes
13 episodes same as the previous serious except this one is separated into two parts with seven episodes first and six in the autumn.