I go to Kirkland Family Medicine, which is quite a distance from Federal Way, but so far I like them very much. I went to an open house seminar sort of thing, so for $205 I got my consultation and 28 packets.
I ended up paying around $280 for my start-up kit and consultation. They said it would be around $85 per week thereafter for food. I've spent quite a bit less because I do the RTD shakes and bars from Sam's Club.