# Delta Dental of Colorado fax number for eligible claim submissions

Find Delta Dental of Colorado’s claims fax and its restrictions for older claims or inactive plans.

Country: United States
Category: Insurance
Last reviewed: 2026-10-04 (published sources, not a test transmission)

## Which Delta Dental of Colorado fax number should I use?

Delta Dental of Colorado asks senders not to fax claims unless they are 90 days old or the plan is no longer active. Confirm that restriction applies before selecting this destination.

## Claims: 90 days old or inactive plan

Fax: +1 303 741 2116
E.164: +13037412116

Claims that are 90 days old, or claims for a plan that is no longer active.

Use only when: Do not fax newer claims under an active plan. This is Delta Dental of Colorado’s claims destination, not a national claims or appeals fax.

[Delta Dental of Colorado — claims contact](https://www.deltadentalco.com/about-us/contact.html) — reviewed 2026-10-04

## What to include in your fax to Delta Dental of Colorado

Use the claim paperwork and supporting information requested for your Colorado plan. For a newer claim under an active plan, follow the plan’s other submission instructions.

## Check the destination and prepare your cover page

Address the Claims Department and include the requested claim reference, callback number and page count. Identify the service date where requested.

Check the official source and recipient instructions before sending. A reviewed source confirms a published number, not live availability.

## Confirm delivery and follow up with Delta Dental of Colorado

These are fax destinations, not voice support lines. Keep the transmission result and a copy of the documents. Confirm with the receiving department that the packet is complete and can be processed; a delivery receipt does not establish acceptance or a decision. Check with that department before sending a duplicate.

## How to fax Delta Dental of Colorado without a fax machine

Prepare a legible PDF, verify the department and number, review the pages and authorize sending. DearFax supports [online sending](https://dearfax.com/send-fax-online) and workflows with [ChatGPT](https://dearfax.com/chatgpt) or [Codex](https://dearfax.com/codex) through [MCP](https://dearfax.com/mcp). Retain the transmission result.

## Frequently asked questions

### What Delta Dental of Colorado fax number should I use?

Claims: 90 days old or inactive plan: +1 303 741 2116. Delta Dental of Colorado asks senders not to fax claims unless they are 90 days old or the plan is no longer active. Confirm that restriction applies before selecting this destination.

### Can I fax a new claim for an active plan?

Delta Dental of Colorado says not to fax claims unless they are 90 days old or the plan is no longer active. Use your plan’s other submission options for a newer claim under active coverage.

### What documents can I fax to Delta Dental of Colorado?

Use the claim paperwork and supporting information requested for your Colorado plan. For a newer claim under an active plan, follow the plan’s other submission instructions.

### What should I put on a fax cover page for Delta Dental of Colorado?

Address the Claims Department and include the requested claim reference, callback number and page count. Identify the service date where requested.

### How can I fax Delta Dental of Colorado without a fax machine?

Prepare your documents as a legible PDF and confirm the recipient’s submission requirements. You can use DearFax in your browser or prepare the fax with ChatGPT or Codex through MCP. Review the number and pages before authorizing the send, then keep the transmission result. Delivery does not confirm that the recipient accepted or processed your request.

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