Contact Us | Delta Dental of Washington
Hours of operation
- Customer service
Monday - Friday: 7 am - 5 pm PST
- Provider customer service
Monday - Wednesday: 7 am - 5 pm PST
Thursday - Friday: 7 am - 5 pm PST (closed between 1 - 2 pm PST)
General Information
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Seattle Office - Main Phone
Local phone: (206) 522-1300
Toll free: (800) 367-4104
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Government Relations
Email: Govt@DeltaDentalWA.com
Local phone: (206) 528-2304
Toll free: (800) 572-7835 x2304
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Group Administration
Local phone: (206) 528-5320
Toll free: (800) 408-9850
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Claims may be mailed to:
Delta Dental of Washington
P.O. Box 75983
Seattle, WA 98175-0983
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