This page collects the Delta Dental of Illinois numbers, portal, payer IDs, mailing addresses and filing rules a dental front desk needs, taken from the payer's own provider materials and last checked on September 25, 2026.
Plan types: PPO, DeltaCare (DHMO), Individual PPO, State of Illinois (group/self-funded), Medicare Advantage · States: IL
Delta Dental of Illinois phone numbers for dental offices
Department | Phone | Hours |
|---|---|---|
Customer Service, group plans | Mon-Fri 8:30am-5pm CT | |
Professional Relations (network, credentialing, EFT, fees) | Mon-Fri 8:30am-5pm CT | |
Individual PPO plan members | ||
DeltaCare (DHMO) plan members | ||
Individual policyholders, Benefits on Demand fax-back | 24/7 | |
State of Illinois plan IVR | ||
General inquiries | ||
Sales and Marketing |
Fax numbers
Department | Fax |
|---|---|
Professional Relations (EFT forms, credentialing documents) |
Delta Dental of Illinois provider portal
The provider portal is Dentist Connection: https://app.deltadentalil.com/provider/.
Check family eligibility in one entry
View claim processing and payment status
View pre-treatment estimate status
View EOP and EOB statements
Upload the EFT enrollment form
Patients use a separate member portal: https://my.deltadentalcoversme.com.
Delta Dental of Illinois payer IDs for electronic claims
Payer ID | Use for | Notes |
|---|---|---|
05030 | Group (employer) dental plan claims | |
WDENC | Individual dental policyholder claims | |
DDCA3 | DeltaCare (Illinois DHMO) encounter submissions | |
DDCA2 | DeltaCare specialty claims | Another Delta Dental of Illinois page says specialists should use 05030. Confirm with Professional Relations. |
Delta Dental of Illinois claims and appeals mailing addresses
Send | Address |
|---|---|
Claims | Delta Dental of Illinois, Attn: DDIL-Group Claims, P.O. Box 5402, Lisle, IL 60532 |
Claims | Delta Dental of Illinois, Attn: DDIL-Individual Claims, P.O. Box 103, Stevens Point, WI 54481 |
Claims | DeltaCare USA, P.O. Box 1810, Alpharetta, GA 30023 |
Appeals | Delta Dental of Illinois, Attn: Re-Evaluation Committee, 111 Shuman Blvd., Naperville, IL 60563 |
Credentialing | Delta Dental of Illinois, Attn: Professional Relations, 111 Shuman Boulevard, Naperville, IL 60563 |
Timely filing limits
Delta Dental of Illinois does not publish one filing deadline for every plan on its provider pages. The limit depends on the employer group or plan, so confirm it on the patient's plan documents or with provider services before you rely on it. Our guide to timely filing limits covers the common ranges.
EFT and ERA enrollment
Complete the National Direct Deposit Form and fax it to 630-983-4085 (ATTN: Professional Relations), mail it to 111 Shuman Boulevard, Naperville, IL 60563, call 630-718-4990 for secure-email instructions, or upload it in Dentist Connection (your name, then EFT). Offices outside Illinois enroll through their own state's Delta Dental.
Credentialing and network enrollment
Contact: 630-718-4990; pr@deltadentalil.com; https://www.deltadentalil.com/dentists/join-us/
To join the PPO network, send the PPO Enrollment Checklist, PPO Agreement, Initial Credentialing Profile and Direct Deposit Form to Professional Relations by fax (630-983-4085) or mail. Requirements include an active state license and adequate professional liability insurance.
Plan clauses to check during verification
Missing tooth clause
Whether a missing tooth clause applies depends on the group plan. Ask whether the plan excludes replacing teeth lost before coverage began, and note the answer before you present a bridge or implant. See how to spot the missing tooth clause.
Waiting periods
Waiting periods are set by the group plan. Confirm the waiting period for basic and major services and the patient's effective date.
Downgrades (alternate benefit)
Ask whether posterior composites are paid at the amalgam rate and whether crowns downgrade to a base-metal benefit, so the patient estimate is right the first time.
Frequency limits
Frequency limits vary by plan. Confirm cleanings, exams, bitewings, full-mouth X-rays and fluoride limits, and the date of the last service billed.
Verification checklist for Delta Dental of Illinois
Register for Dentist Connection to check eligibility and claim status for a whole family in one entry.
For Individual PPO policyholders, use MyDeltaDentalCoversMe (my.deltadentalcoversme.com); registering there also links your Dentist Connection login.
Without portal access, use Benefits on Demand fax-back: 800-323-1743 for group members, 855-335-8267 for individual policyholders (24/7). Faxes arrive in about 10 minutes.
Keep the verification code the automated system issues; it stays valid for one month if you need a live agent for the same patient.
For State of Illinois employee plan patients, use the dedicated IVR at 888-224-0295.
The State of Illinois plan is self-funded, so payment waits for the State to release funds, even after approval.
Record the representative's name, the call reference number and the date for every phone verification.
Related guides
Member company of the Delta Dental Plans Association; see the national Delta Dental guide.
Out-of-state office locations enroll in EFT/ERA through the Delta Dental member company in that office's state.
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Sources
Every number and address above comes from Delta Dental of Illinois's own website or provider documents, checked on September 25, 2026. Payers change phone trees and PO boxes, so confirm with the payer before you mail anything time-sensitive.