Phone / Fax
Providers are required to use self-service technology, such as the Interactive Voice Response (IVR) system or the myCGS web portal to access claim status and beneficiary eligibility information. Customer Service Representatives (CSRs) will refer providers to these resources when calling for claims status or eligibility information. Exceptions will be made if your experience technical difficulties.
- Interactive Voice Response (IVR) User Guide
- 1.866.290.4036 (You will need your facility's NPI, PTAN and the last 5 digits of the provider TIN)
- Medicare Beneficiary Identifier (MBI) and Name to Number Converter (converts letters to numbers for easy entry using your telephone keypad)
- myCGS Web Portal
- myCGS User Manual, Chapter 2: Claims Tab
- myCGS User Manual, Chapter 4: Eligibility Tab
Before calling to speak with a Customer Service Representative (CSR) in the Provider Contact Center (PCC), consider reviewing the following resources:
Customer Service | Phone: 866.276.9558
8:00 a.m. – 5:00 p.m. (EST) |
Before you call, make sure you have:
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Telecommunications Devices for the Deaf (TTD/TTY) | Dial 711. |
Before you call, make sure you have:
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Beneficiary Customer Service Calls | Phone: 1.800.MEDICARE (1.800.633.4227) |
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Congressional Inquiries | Fax: |
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General Correspondence | Fax: 615.782.4490 |
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Medical Director | Fax: 615.664.5961 Other Options: |
Clinical questions may be submitted in writing to: Earl Berman, MD |
Overpayment Recovery | Fax offset requests and OPR forms to: |