Skip Navigation

Send this page to a colleague

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

CIGNA Government Services
P.O. Box 20009
Nashville, TN 37202

FAX: 615.782.4630

ADMC - send requests to: CIGNA Government Services
Attn: ADMC
P.O. Box 20010
Nashville, TN 37202
OR
FAX: 615.782.4647
Beneficiary Customer Service Calls 1.800.Medicare
Claim Reopenings (Adjustments) CIGNA Government Services
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

Jurisdiction C CEDI Web site: http://www.ngscedi.com/

Email Address: ngs.cedihelpdesk@wellpoint.com

Address for EDI Inquiries
Written Communications:

National Government Services, Inc.
Attn: CEDI
PO Box 7165

Indianapolis, IN 46207-7165

Address for Enrollment
Written Communications:

National Government Services, Inc.
Attn: CEDI Enrollment
PO Box 7165

Indianapolis, IN 46207-7165
Electronic Funds Transfer CIGNA Government Services
Attn: EFT-DME
P.O. Box 20010
Nashville, TN 37202
General Fax Number 615.782.4624
Paper Claim Submission CIGNA Government Services
P.O. Box 20010
Nashville, TN 37202
Provider Customer Service Calls 1.866.270.4909 (customer service)
1.866.238.9650 (IVR - interactive voice response)
1.888.204.3771 (hearing impaired)
Interactive Voice Response (IVR) script Interactive Voice Response (IVR) script
IVR Summary Flow Chart IVR Summary Flow Chart
Reconsiderations QIC
RiverTrust Solutions, Inc.
1 Cameron Hill CIrcle STE 0011
Chattanooga, TN 37402-0011
Refunds CIGNA Government Services
DME MAC Jurisdiction C
P.O. Box 955152,
St. Louis, MO 63195-5152
1.888.315.6930
Supplier Enrollment National Supplier Clearinghouse Palmetto GBA * AG-495
P.O. Box 100142
Columbia, SC 29202-3142
1.866.238.9652
Telephone Reopenings 1.866.813.7878
Written Inquiries CIGNA Government Services
P.O. Box 20010
Nashville, TN 37202


An ISO 9001:2008 certified company

CIGNA Government Services Home | About Us | Careers | Disclaimer | Web Site Feedback | Contact Us


Centers for Medicare & Medicaid Services