Hello @stonemetz and welcome to Mayo Clinic Connect. Because you are looking to connect with others to learn about possible Bertolotti's Syndrome specialists in Washington, I have moved your post into this existing discussion on locating specialists: https://connect.mayoclinic.org/discussion/wondering-if-there-are-any-doctors-that-specialize-in-bertolottis-syndrome-i/

Have you been recently diagnosed? Are you willing to travel should you not locate an in-state specialist?