Mid-Atlantic Customer Service for enrollees and providers

Representing Delta Dental Plans of Pennsylvania, Delaware, New York, Maryland, Washington, D.C. and 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