Contact Other CGS Departments/Resources
All Written Inquiries - Remember to include an "attention to" note on the first page of each written inquiry. This will help us direct your inquiry to the correct department quickly.
You may also contact us online by using our Online Help Center.
| Contact | Information | |
|---|---|---|
| Appeals - Redetermination Requests | CGS P.O. Box 20009 Nashville, TN 37202 FAX: 615.782.4630 |
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| ADMC - send requests to: | CGS Attn: ADMC P.O. Box 20010 Nashville, TN 37202 OR FAX: 615.782.4647 |
|
| Beneficiary Customer Service Calls | 1.800.Medicare | |
| Claim Reopenings (Adjustments) | CGS P.O. Box 20010 Nashville, TN 37202 For a reopening with an underpayment fax to: 615.782.4649 For a reopening with an overpayment fax to: 615.782.4477 |
|
| EDI - Electronic Claim Submission; Electronic Remittance Notices, 276/277 transactions | Jurisdiction C CEDI Helpdesk Toll-free: 1.866.311.9184 Hours: 9:00 a.m. - 7:00 p.m. Eastern Time, Monday - Friday Email Address: ngs.cedihelpdesk@wellpoint.com |
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| Address for EDI Inquiries Written Communications: National Government Services, Inc. |
Address for Enrollment Written Communications: National Government Services, Inc. |
|
| Electronic Funds Transfer | CGS Attn: EFT-DME P.O. Box 20010 Nashville, TN 37202 |
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| General Fax Number | 615.782.4490 | |
| Paper Claim Submission | CGS P.O. Box 20010 Nashville, TN 37202 |
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| Provider Customer Service Calls | 1.866.270.4909 (customer service) 1.866.238.9650 (IVR - interactive voice response) 1.888.204.3771 (hearing impaired) |
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| Interactive Voice Response (IVR) script | Interactive Voice Response (IVR) script | |
| IVR Summary Flow Chart | IVR Summary Flow Chart | |
| Reconsiderations | C2C Solutions, Inc. ATTN: DME QIC P.O. Box 44013 Jacksonville, Florida 32231-4013 Website: www.C2Cinc.com |
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| Refunds | CGS DME MAC Jurisdiction C P.O. Box 955152, St. Louis, MO 63195-5152 |
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| Supplier Enrollment | National Supplier Clearinghouse Palmetto GBA * AG-495 P.O. Box 100142 Columbia, SC 29202-3142 1.866.238.9652 |
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| Telephone Reopenings | 1.866.813.7878 | |
| Written Inquiries | CGS P.O. Box 20010 Nashville, TN 37202 |
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