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Contact Us

Group administrators should always contact their assigned account manager for assistance.

Below is additional contact information for group plan members. Group plan members can always get real time benefit and claim information 24 hours a day, seven days a week online through the Member Connection or through our automated phone system at 800-323-1743.

Customer Service Information for Group Members

General Group, DeltaCare and State of Illinois Plan Members

General Group Plan Members: 800-323-1743

DeltaCare Plan Members: 800-942-3772

State of Illinois Plan Members: 800-323-1743, press 5

Customer Service Hours: 

7:00 am - 7:00 pm, Monday – Thursday
7:00 am – 6:00 pm, Friday
Central Time 

Email: csi@deltadentalil.com

Our IVR (automated phone system) is available 24 hours a day, seven days a week.

Mailing Information for Group Claims and Claims Appeals

General Group and DeltaCare Plan Members

Group Plan Members:

Delta Dental of Illinois
Attn: DDIL-Group Claims
P.O.Box 5402
Lisle, IL 60532

Electronic Claims Payor ID: 05030

DeltaCare Plan Members:

Delta Dental of Illinois
Attn: DeltaCare
P.O. Box 3399
Lisle, IL 60532

Electronic Claims Payor ID: 05030

Claims Appeals Mailing Address

DELTA DENTAL OF ILLINOIS
Attn: Re-Evaluation Committee
111 Shuman Blvd.
Naperville, IL 60563

PLEASE NOTE: CLAIMS APPEALS SHOULD BE SENT TO THE STREET ADDRESS ABOVE NOT THE PO BOX. THE PO BOX IS FOR CLAIMS ONLY. CLAIMS APPEALS SENT TO THE PO BOX WILL BE DELAYED.

Can't find what you are looking for?  Visit our main Contact Us page for additional information.

General Inquiries and Other Correspondence

Delta Dental of Illinois
111 Shuman Boulevard
Naperville, IL 60563
Phone: (630) 718-4700
Email: askdelta@deltadentalil.com

Sales and Marketing Questions
Phone: (800) 335-8215
E-mail: askdelta@deltadentalil.com

               

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