nodeProvider Relations Representatives Directory Provider relations representatives directory Medical and dental professionals: We're here to assist you.Members: To get in touch with PacificSource, visit our Contact Us page.OregonWillamette Valley & Southwest OregonMarion, Polk, & surrounding CountiesPortland MetroCentral & Eastern OregonColumbia Gorge & Southwest WashingtonIdahoNorthernCentralEasternSouthernMontanaWesternCentralEastern, Billings Clinic, & Wyoming