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Who Should I Call for PECOS Assistance?

"Who should I call?"
CGS (MAC) EUS (PECOS)
Help completing an Internet-based PECOS enrollment Forgotten PECOS User ID/Password
Application status Error while completing application in PECOS
Change an application in progress System Administrator errors
Reassignment of benefits Questions about account registration
Question about required/supporting documents How to upload or reprint documents in PECOS
Missing Application How to start revalidation application in PECOS
Rejected Application Pay.gov questions
Revalidation requirements Access existing enrollments in PECOS
Questions about an existing enrollment  
CGS (MAC) EUS (PECOS)

Hours of Operation:
Monday – Friday, 8am-5pm EST

Website: https://www.cgsmedicare.com

Online Help Center: Part A Online Help Center

E-mail Corrections: J15.provider.enrollment@cgsadmin.com

By Phone:
Toll-Free: (866) 590.6703 Opt 3
TTY/TDD: (855) 294-9889

Mailing Address:
J15-Part A Provider Enrollment
CGS Administrators, LLC
P.O. Box 20004
Nashville, TN 37202

Hours of Operation:
Monday – Friday, 7am-7pm EST

Website: https://eus.custhelp.com

By Chat: Live Chat Launch

Page By E-mail: EUSSupport@cgi.com

By Phone:
Toll-Free: (866) 484-8049
TTY/TDD: (866) 523-4759

Mailing Address:
External User Services
PO Box 792750
San Antonio, Texas 78279

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26 Century Blvd Ste ST610, Nashville, TN 37214-3685 © CGS Administrators, LLC. All Rights Reserved