CGS J15 Part A appeal mailing address

For clinic and billing teams researching institutional Part A claim redeterminations in Kentucky and Ohio. Confirm the contractor, program and appeal stage on the actual notice before choosing a destination.

Provider first-level claim redeterminations handled by CGS J15 Part A. Not Part B, DME, home health/hospice, Medicare Advantage, a 935 overpayment appeal, cost-report/audit appeal, refund payment, ADR response or second-level QIC appeal.

Ordinary postal mail

CGS Administrators, LLC; J15 Part A Appeals; PO Box 20006; Nashville, TN 37202

FedEx, UPS or certified mail

CGS Administrators, LLC; J15 Part A Appeals; 26 Century Blvd, Suite NT600; Nashville, TN 37214

Use the channel-specific address listed by CGS. Retain submission and delivery evidence in your secure operational system; this research page does not send an appeal.

Which nearby address should not be substituted?

The ordinary Part A claim-appeal mailbox is PO Box 20006. CGS separately lists 935 overpayment appeals at PO Box 20022 and provider-audit/cost-report appeals at PO Box 20020. Do not interchange them or infer recoupment protection from this address.

Filing window and materials

Not assessed by this address record; use the actual initial determination and current first-level appeal instructions. Keep the determination, claim identifiers, appeal grounds, representation evidence and required supporting materials in your secure case system. Confirm the current appeal-stage instructions externally; no patient information should be entered here.

Official CGS address table — Mailing Addresses — Appeals row; separate 935 Overpayment Appeals and Provider Audit rows excluded · checked 2026-10-28. Address page reviewed July 20, 2026; independently fetched and checked October 16, 2026. No universal effective date or filing deadline is inferred.

Original Medicare first-level receipt-based filing window · CGS J15 Part b address and program boundaries · Second-level QIC channels · Provider directory