Credentials and Membership

Joining our award-winning network is easy! We'll walk you through the process and be here to answer any questions you may have along the way.

To start the process of becoming a new member dentist with Delta Dental of Washington, please complete the forms located here. These forms provide us with the information we need to start the credentialing process and have your information updated in our system.

We'll let you know when your request has been processed and follow-up with you on the next steps. If you have more than one office location, please complete a separate Additional Treatment Office Information form for each location, this form can be found in the membership application packet above.

If you have any questions, please contact our skilled Provider Services representatives directly at