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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, or when the official process still starts with a PDF form that you would rather complete in a guided online workflow.
Published Jan 16, 2026 • Updated Apr 24, 2026
How it works
Step 1
Fill out form
Complete the guided fields online.
Step 2
Preview PDF
Review the generated PDF before mailing.
Step 3Mail
We print and mail it via USPS.
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
- Start with a guided workflow or finished packet
- Review the generated PDF and attachments
- Follow the workflow's delivery boundary — supported claim packets may go to a verified plan recipient; customer-assembly forms are mailed only to you for signatures, physical records, and final submission.
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Ready to get started?
Start with the guided health insurance packet workflow if you want the cover page, summary, and exhibit order assembled for you.