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Health insurance

Health insurance claim mailing guides

Browse guides for mailing health insurance claims and supporting documents. Use these when a payer requests paper submission or additional records.

Published Jan 16, 2026 • Updated Feb 20, 2026

Mail my claim packet

Common reasons to mail a claim packet

  • A payer requires mailed forms or signatures
  • You need to include supporting medical records
  • A claim was denied and needs additional documentation

What to include

  • Claim forms (CMS-1500 or payer-specific forms)
  • Itemized bills and receipts
  • Provider notes or referrals, if required
  • A brief cover letter with claim details

How it works with PostalForm

  1. Combine everything into one PDF
  2. Add sender and recipient addresses
  3. Checkout and we mail it via USPS

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Mail my claim packet
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