Contact Us | Delta Dental of Washington

Hours of operation

  • Customer service
    Monday - Friday: 6 am - 5 pm PT
  • Provider customer service
    Monday - Wednesday: 6 am - 5 pm PT
    Thursday - Friday: 6 am - 5 pm PT (closed between 1 - 2 pm PT)

General Information

  • Seattle Office - Main Phone
    Local phone: (206) 522-1300
  • Government Relations
    Email: Govt@DeltaDentalWA.com
    Local phone: (206) 528-2304
    Toll free: (800) 572-7835 x2304
  • Group Administration
    Local phone: (206) 528-5320
    Toll free: (800) 408-9850
  • Claims may be mailed to:
    Delta Dental of Washington
    P.O. Box 75983
    Seattle, WA 98175-0983