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This page collects the Delta Dental of Missouri 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, Premier, Healthy Smiles Healthy Lives (group), MAX Advantage (group), Individual and Family Plans, DeltaVision (separate vision product), Small Business Plans · States: MO

Delta Dental of Missouri phone numbers for dental offices

Department

Phone

Hours

Provider services
Printed on the Delta Dental of Missouri ADA claim form and provider PDFs. Local 314-656-3001 is printed alongside it.

800-335-8266


Customer service (UM contact page)
Local 314-656-3001.

866-276-8329


General customer service
Listed on the main contact page; may be member-facing. Confirm which line handles provider questions.

866-991-7345

Mon-Fri 7am-5pm CT

Main office
Toll-free 800-392-1167.

314-656-3000


DentalXchange credentialing support (DDS Enroll)
Ext. 471. Vendor line for online credentialing, referenced in the Delta Dental of Missouri StraightTalk newsletter.

800-576-6412


Fax numbers

Department

Fax

Main office / claims

314-656-2900

Delta Dental of Missouri provider portal

The provider portal is Delta Dental of Missouri Provider Portal: https://providers.deltadentalmo.com/.

  • Look up eligibility and benefits

  • Submit and convert pre-treatment estimates

  • Submit claims and check status

  • View EOBs and bulk remits

  • Enroll in EFT and manage payments

  • Sign on to the national Delta portal

Delta Dental of Missouri payer IDs for electronic claims

Payer ID

Use for

Notes

43090

Delta Dental of Missouri electronic claims

Printed on the ADA claim form. Send attachments (x-rays, perio charts, narratives) through Renaissance Electronic Services.

Delta Dental of Missouri claims and appeals mailing addresses

Send

Address

Claims

Delta Dental of Missouri, P.O. Box 8690, St. Louis, MO 63126-0690

Claims

P.O. Box 70210, London, KY 40742

Timely filing limits

Delta Dental of Missouri 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

On providers.deltadentalmo.com go to Payment management, then Enroll now, and enroll by Tax ID or Tax ID plus NPI II. ERA is available through RedCard EFT/ERA Enrollment and the national DentalXchange repository. Midwest Bank accounts need a voided check sent to EFTpayments@deltadentalmo.com. Questions: professionalrelationsteam@deltadentalmo.com.

Credentialing and network enrollment

Contact: https://credentialing.deltadentalmo.com/ (DDS Enroll); support 800-576-6412 ext. 471; to join, ProfessionalRelationsTeam@DeltaDentalMO.com

Credentialing and re-credentialing run through DDS Enroll (DentalXchange), linked from the portal under Provider contracting & re-credentialing. It auto-fills repeat applications, stores documents, supports e-signature and sends expiration reminders.

Plan clauses to check during verification

Missing tooth clause

Shown per member (Yes/No) on the portal's Member Benefits details screen.

Waiting periods

Shown per member (Yes/No) on the portal's Member Benefits screen.

Downgrades (alternate benefit)

Member Benefits pages carry the notice "Alternate benefits may apply."

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 Missouri

  • Check Member Benefits in the portal for missing-tooth clause, waiting period and age limits. The portal notes data is not real time and may be delayed.

  • For out-of-state Delta Dental patients, use single sign-on from the Missouri portal to the national Delta Dental portal for eligibility and remits.

  • Complete ADA form boxes 25 (area of oral cavity), 27 (tooth number) and 28 (surface); Delta Dental of Missouri flags these as required for first-pass processing.

  • Attach documentation by procedure, for example periapicals for crowns and current perio charting with x-rays for scaling and root planing.

  • Pre-treatment estimates are valid 6 months; when converting to a claim, enter the Estimate No. in box 2.

  • Two claims mailing addresses appear in official materials (St. Louis and London, KY). Confirm the current one on the patient's ID card or latest claim form.

  • Record the representative's name, the call reference number and the date for every phone verification.

Related guides

  • Delta Dental Plans Association member; the portal offers single sign-on to the national portal for national eligibility and remits.

  • Also serves South Carolina: the EFT/ERA guide says View Remit shows Missouri and South Carolina remittances together.

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Sources

Every number and address above comes from Delta Dental of Missouri'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.