Corporate

Mailing Addresses

Who to Write

Addresses and Additional Information

Customer Service

Written inquiries may be submitted to:
J15 – Part A/B Correspondence
CGS Administrators, LLC
PO Box 20018
Nashville, TN 37202

Email: Online Help Center
Note: DO NOT send Protected Health Information (PHI) or Personally Identifiable Information (PII) via email.

CMS guidelines allow up to 45 business days to respond.

Appeals

Mailing address:
J15 – Part A/B Correspondence
CGS Administrators, LLC
PO Box 20018
Nashville, TN 37202

FedEx/UPS/Certified Mail:
J15 – Part A/B Correspondence
CGS Administrators, LLC
2 Vantage Way
Nashville, TN 37228

Claims

J15 — Part B/HHH Claims
CGS Administrators, LLC
PO Box 20019
Nashville, TN 37202

Congressional Inquiries

CGS Administrators, LLC
J15 Part A/B Correspondence
PO Box 20018
Nashville, TN 37202

Contracting Officer's Representative

Send feedback to the Centers for Medicare & Medicaid Services (CMS) about your experiences with CGS:

Ann Clemens
Medicare Contractor Management Group
J15 Contracting Officer's Representative
Centers for Medicare & Medicaid Services
1961 Stout St. Rm 08-148
Denver, CO 80294

Medical Director

Send clinical questions
Earl Berman, MD
Chief Medical Officer, J15 A/B MAC
CGS Administrators, LLC
Two Vantage Way
Nashville, TN 37228
Email:  cmd.inquiry@cgsadmin.com

Appeals

J15 – Part A/B Correspondence
CGS Administrators, LLC
PO Box 20018
Nashville, TN 37202

General Inquiries

Freedom of Information (FOIA)

Medical Review Additional Development Requests (ADRs)

Online Help Center

Reopenings

Provider Enrollment

Electronic Funds Transfer (EFT) Authorization Agreement (CMS-588) Form

J15 — Part B Provider Enrollment
CGS Administrators, LLC
PO Box 20017
Nashville, TN 37202

Refund Checks

Kentucky:
CGS Administrators, LLC – J15 Part B Kentucky
PO Box 957065
St. Louis, MO 63195-7124

Ohio:
CGS Administrators, LLC – J15 Part B Ohio
PO Box 957352
St. Louis, MO 63195-7124

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