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How to Fax to Cigna — Prior Authorization: Step-by-Step Guide

Healthcare & prior auth

Cigna — Prior Authorization

Bloomfield, CT

Verified Mar 2026

Fax number

(877) 358-6263
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What to include

  • ✓Member ID and authorization reference
  • ✓Clinical summary and treatment plan
  • ✓Relevant labs or imaging summaries
  • ✓Completed prior auth form with signatures

Quick info

Department: Cigna Medical Review / Prior Auth

Fax line: (877) 358-6263

  • Reference authorization or case number if assigned
  • Include treating provider contact on cover sheet
  • Minimize PHI — fax only what Cigna requests

Confirm fax line on your Cigna prior authorization or appeal letter.

Prerequisites — what to prepare

Before you fax Cigna — Prior Authorization, gather these items into one PDF when possible:

  • ✓Member ID and authorization reference
  • ✓Clinical summary and treatment plan
  • ✓Relevant labs or imaging summaries
  • ✓Completed prior auth form with signatures

Step-by-step — send via RonFax

No fax machine required. Pay once from $1.99 for up to 3 pages ($0.50 per extra page).

  1. Combine clinical packet into one PDF.
  2. Double-check destination fax on Cigna materials.
  3. Upload to RonFax and complete secure checkout.
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