Delta Dental of Missouri Contact Directory
10 contact channels across 4 types (Email, Fax, Mailing Address, Phone) for claims, prior authorization, provider services, and more.
Last verified Aug 25, 2026 from the payer's published directories.
Phone
5 rows
| Contact | Purpose | Line of Business | Hours | Notes | Source |
|---|---|---|---|---|---|
| 866-276-8329 | Claims Status | All | N/A | Toll-free customer service phone line, used by providers for claim and benefit inquiries; provider-facing contact page. - Customer service – toll-free | View source |
| 314-656-3001 | Claims Status, Provider Services | All | N/A | Customer service phone line, used by providers for claim and benefit inquiries; provider-facing contact page. - Customer service – local | Customer Service / Automated Attendant (includes provider IVR routing) | View source |
| 800-335-8266 | Claims Submission, Claims Status, Provider Services | All | N/A | Automated attendant toll-free line for customer service/claims inquiries; provider-facing contact page. - Delta Dental of Missouri customer service / claims phone (Delta Dental contact information PDF) | Automated attendant – toll-free | Customer Service toll-free / Automated Attendant (includes provider IVR routing) | View source |
| 800-392-1167 | Provider Services, General | All | N/A | Toll-free main phone line for Delta Dental of Missouri; provider-facing contact page. - Assistance with sending electronic claims (provider FAQ) | Main phone – toll-free | View source |
| 314-656-3000 | Provider Services, General | All | N/A | Main phone line for Delta Dental of Missouri; provider-facing contact page. - Main phone listed on Delta Dental of Missouri Contact Us (dental customer service) | Main phone | View source |
Fax
1 rows
| Contact | Purpose | Line of Business | Hours | Notes | Source |
|---|---|---|---|---|---|
| 314-656-2900 | General | All | N/A | Main fax number for Delta Dental of Missouri; provider-facing contact page. - Main fax | View source |
Mailing Addresses
3 rows
| Contact | Purpose | Line of Business | Hours | Notes | Source |
|---|---|---|---|---|---|
| Delta Dental of Missouri, PO Box 70210, London, KY 40742 | Claims Submission | All | N/A | Effective August 1, 2026, for paper claims and pre-treatment estimates (provider resources page) | Paper claims mailing address for Delta Dental of Missouri; appears on provider and employer-facing pages. - Paper claims and pre-treatment estimates mailing address | Group dental plans (general claims office) | View source |
| Delta Dental of Missouri, P.O. Box 8690, St. Louis, MO 63126-0690 | Claims Submission, Appeals Disputes | All | N/A | Claims office address including ZIP+4; includes payer #43090 in separate source. | Mailing address on dental customer service contact page; provider-facing. - Mailing address listed on UM Contact Us page (general correspondence and claims) | Standard paper claims mailing address | General correspondence and claim-related inquiries | View source |
| Delta Dental of Missouri, 12399 Gravois Road, St. Louis, MO 63127-1702 | General | All | N/A | Street address listed on UM Contact Us page | View source |
1 rows
| Contact | Purpose | Line of Business | Hours | Notes | Source |
|---|---|---|---|---|---|
| service@deltadentalmo.com | Eligibility Benefits, Provider Services, Edi Electronic Claims | All | N/A | General customer service email used for claim, eligibility, and benefit questions; provider-facing contact page. - Customer service email | General service email for provider and administrative inquiries (listed on UM Contact Us page) | Questions about electronic claims (provider FAQ) | View source |
Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.
More from Delta Dental of Missouri
Go deeper
Explore OpenPayer Data
Contact details are one slice of what OpenPayer tracks per payer. Browse the full health insurance payer directory for plan profiles and market data, or follow payer policy changes in the live policy feed.
Toolbox
More OpenPayer Tools
- Billing Code LookupSearch CPT, HCPCS, J-codes, DRG, and dental codes by number or procedure name.
- Healthcare Provider & Facility LookupFind hospitals and healthcare facilities by name, taxonomy, facility type, ownership, or state.
- Health Insurance Payer LookupSearch national health insurance payers and health plans by name and state presence.
- Provider Taxonomy Code LookupSearch NUCC taxonomy codes by code, specialty, grouping, or classification.
- CPT Modifier LookupSearch CPT modifiers by code or name — descriptions, when to use them, and payer policy context.
- Prior Authorization LookupSearch payer prior authorization policies by drug, procedure, or policy name.
- Timely Filing LookupFind payer timely filing policies: claim deadlines, corrected claim windows, and appeal timeframes.
- Coverage Criteria LookupSearch payer coverage criteria and medical necessity requirements by drug, procedure, or payer.
Sources
Where this data comes from
Every contact in this directory comes from documents the payers publish themselves, such as provider manuals, quick reference guides, and contact pages, and each payer page shows when its contacts were last verified. You can see all of our data sources and how we process them.
Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.