The website for the Portland Practice is
www.portlandpractice.co.ukThere are other practices at St Paul's Medical Centre, see
here. They all appear to have similar 0844 numbers.
Unfortunately there is very little chance of finding the actual geographical numbers. However, that does not stop us trying.
Others have requested numbers for surgeries with 0844 477 numbers, see
this post.
When was the number changed?
St George's Surgery says on its website that "From Friday 5th August 2005 we will be changing over to a new telephone system." In my above post I said that maybe these lines are provided by Telstra Europe. Within the 01242 code there is one prefix, 01242 96, allocated to Telstra, change date 12/2005.