Customer Service in Mid-Atlantic states for enrollees and providers

Customer service for the following companies:
Delta Dental of Delaware
Delta Dental of the District of Columbia
Delta Dental of New York
Delta Dental of Pennsylvania (and Maryland)
Delta Dental of West Virginia

For all inquiries, we recommend that you use our online customer service form.

If you prefer to call or write:

Toll-free customer service number: 800-932-0783.
Customer Service representatives are available from 8 a.m. to 8 p.m. Eastern Time, Monday through Friday.

Written inquiries:
Corporate Headquarters
One Delta Drive
Mechanicsburg, PA 17055-6999