R.J.
Area local q's often go unanswered.
I know lots of peds in redmond/seattle... none of whom would fit your bill. Especially not with pertussis almost epidemic up here right now, and measles (HATE that illness) on the rise.
______
Just as an aside/ ETA per yours:
Seattle is an INCREDIBLY liberal town. You will have absolutely no problem finding chiropractors, naturopaths, osteopaths, and acupuncture... and most docs here can refer you to some good ones.
As far as standard care, though
http://mypediatricassociates.com/content.aspx?id=165
is a really, really good ped group. It was originally started by top docs who started having families and only wanted to work 3 days a week and spend the other 4 with their young children at home. The practice has grown a LOT in the past 10 years. Aside from a really high standard of care, they also have half a dozen offices, weekend hours (both Sat & Sun... but only in specific locations that anyone from any office can go to for sick child appts), and they save a slot in the morning and evening for kids who get sick overnight or during the day. It's a really great group. Most of their docs have rights at Children's Hospital, and Evergreen (Children's overflow hospital on the Eastside). Similarly, there are Children's Hosp. Urgent care clinics on the Eastside as well.
AVOID GroupDeath (GroupHealth) if at all possible. The best hospital for children is Children's Hospital (Sandpoint, on the other side of the lake from you), and for adults (in order from closest to you outward) Evergreen, Overlake (you won't like them, heck even most med professionals don't like them... they buy the priciest gizmos and then have to pay for them, so they're all about intervention, but they DO have great gizmos) UW (teaching hospital), Swedish, & Harborview (our county hospital & trauma center).
If by any chance you're Microsofting it... no worries ... their HR will probably hook you up with local providers (they're their own little socialist nation over there:) in all fields (medicine, massage, chiropractic, osteopaths, yoga for health, nutrition, etc.)