Customized Large Envelopes for Medical Claims This Large Medical Claim Form Envelope is 9 x 13. This envelope is designed to be used with Claim Forms for Medicare and Medicaid. You can also use this envelope to send claims to other health insurance companies if you do not want the documents to be folded. This envelope includes a window so that the address of the recipient can be easily seen and a security lining to safeguard the contents inside. You can purchase these envelopes with your medical office name and address or you can have them shipped without any printed information.
