Hi. Sorry to report this, but I specificically made a request a couple of months ago on behalf of a friend, to a family member who is a retired physician at a major hospital in Seattle. After checking around, he reported that there were "NO" qualified RSD specialists in Seattle, including at the University of Washington.
You're right that the the major centers appear to be the Cleveland Clinic, Drexel University in Philadelphia and Mass General. The said, there are some perfectly good and highly sophisticated pain management docs in the SF Bay area and LA who work with RSD cases every day, granted that's still a plane flight away.
Mike
ps For recent thread on LA docs see
http://neurotalk.psychcentral.com/thread51236.html. I believe other members could share their suggestions in the Bay Area.