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IACS Overview

Individuals Authorized Access to the CMS Computer Services (IACS) has been established to provide our Business Partners a means to apply for and receive a single User ID they can use to access many CMS applications. On this website you'll find information about the applications your IACS User ID can be used with, how to register for an IACS User ID, how to login to IACS, how to login to your application, and information about the Help Desks that support your applications. Your organization or CMS contact can help you with the information you'll need for registration such as application name, application role, Organization Legal Business Name, Taxpayer Identification Number or other information specific to your application. Not every CMS application requires the same information so it is important to get the specifics directly from your organization or CMS contact.

Important Messages

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This important message applies only to current users of the following applications: Bundle Payments EFT, COB, CPCi, CSR, ECRS, Gentran, HPG, Internet Server (TIBCO), MAPD (MARx UI), MDR, MED, myCGS, Novitasphere, PS&R, STAR, The SPOT (FCSO) and VMS CL IACS Services for your application will be moving to the Enterprise Identity Management System (EIDM) on February 9, 2015. In preparation for the move no new user registrations or profile modifications will be accepted after 5:00 PM on January 30, 2015.


What you should DO!  
  1. DO make sure that you know your User ID and Password. Your User ID and Password will be moved “as is” on January 30 after 5:00 PM. You should be certain that you know your User ID and Password AND that you can successfully login to IACS before 5:00 PM, Friday, January 30, 2015.
  2. DO reset your password if you think that your password might expire between January 30 and February 9, 2015.
  3. DO work with your Application Helpdesk to get any pending request approved before 5:00 PM, Friday, January 30, 2015.
  4. DO review your profile and ensure that all information is correct prior to 5:00 PM, Friday, January 30, 2015.
What you should NOT do!
  1. DO NOT register for a new User ID in IACS if it cannot be approved prior to 5:00 PM, Friday, January 30, 2015
  2. DO NOT register for a new User ID in EIDM! This will only complicate moving your IACS User ID to EIDM!
  3. DO NOT make changes to your user profile or submit a request of any type that cannot be approved prior to 5:00 PM, Friday, January 30, 2015.

PS&R and STAR Security Officials: If you are requesting the IACS Security Official (SO) role, please note, that your request will expire if the required IRS documentation is not submitted within 60 days of your request. Allow time for processing and if you know that your request will expire, please contact EUS before the 60 day deadline.

Do not disclose or lend your User ID AND/OR PASSWORD to someone else. They are for your use only and serve as your electronic signature. This means that you will be held responsible for the consequences of unauthorized or illegal transactions. Sharing of accounts may lead to termination of system access privileges and /or adverse action up to and including legal prosecution.

IACS Account

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