Small Envelopes for Medical Claims Our Small Medical Claim Envelope is 4.125 x 9.5. A window is included so that the address of the recipient can be easily seen without having to print labels or hand write the address. This Small Medical Claim Envelope also includes a security lining to safeguard any medical documents. We will custom print these envelopes with your company name and address. If you have any questions on these medical claim envelopes, feel free to call us at 1-800-370-5591.
