PECOS and the I&A Management System

<p>View the below related information on this page. 

I&A Management System

The I&A Management System is used by CMS to allow users to access and control access to PECOS, National Plan and Provider Enumeration System (NPPES), and Electronic Health Record (EHR) (Merit-Based Incentive Payment System (MIPs)). It allows access to the providers, organization, or sole owned practice. All people using PECOS must use his/her own User ID and Password.

Organizations and providers setting up in the I&A may watch our Enrollment on Demand tutorials for related assistance and gain a better understanding of I&A. Visit External User Services (EUS) for more I&A details.


A Connection is, a way to connect to a Taxpayer Identification Number (TIN) (Employer Identification Number (EIN) or Social Security Number (SSN)) to gain access to PECOS, NPPES, and EHR records.

When submitting an application, one of the two types of connections must be completed. Once completed, provider may see the enrollment in PECOS.

  1. Employer Connection
    • Connecting provider account to an Individual Provider (Social Security Number (SSN)) or an Organizational Provider (Employer Identification Number (EIN)) to access to his/her records
  2. Surrogacy Connection
    • Connecting two TINs to allow a third-party access on TINs behalf

Authorized Official (AO)/ Access Manager (AM)

Q: Can an individual who is set up as an AO/ DO in the I&A sign for PECOS applications?
A: This depends on provider's business structure. Being set-up as an AO/AM will not reflect how a provider is set-up with the enrollment. Examples:

  • Individual set-up as an AO/AM in the I&A only cannot sign PECOS applications
  • Individual set-up as an AO/AM in the I&A and PECOS can sign PECOS applications


Whether a provider is enrolling in Medicare for the first time or needs to make changes to enrollment information, Internet-based PECOS is the most efficient process of submitting applications and keeping Medicare enrollment information up to date. PECOS can be used in lieu of the paper enrollment process to enroll in Medicare, make changes to enrollment records, add or change reassignment of benefits, and view enrollment information.

To take full advantage of submitting applications online, view our Enrollment on Demands for a step-by-step guide on how complete the application.


  • View and change existing enrollment information
  • Automatic selection of proper enrollment form(s)
  • Assist in verifying information
  • Faster processing times
  • Saves money as there is no need to print and mail an application
  • Makes updating and revalidating a provider easy
  • Track PECOS application through submission process
  • Fewer submission errors/omissions

PECOS allows providers to securely review information currently on file, update and submit applications via the Internet. Prior to submission, upload all required supporting documentation and electronically sign the certification statement. When completed, there is no need for the provider to sign and mail a paper version of the application, certification statement, or the supporting documentation. View the "Required Documents Topic" or "Specialty Supporting Documents" EoD Extras Enrollment on Demand tutorials to learn about required supporting documentation.

When completing a PECOS application, we suggest that providers use Internet Explorer or Firefox as other web browsers do not display all information.

PECOS vs. Paper Application Processing Timeframe

When submitting an application via PECOS, processing time to completion is must faster than that of a paper application.

Application Type Processing Time with an Onsite Visit Processing Time without an Onsite Visit
PECOS 50-85 calendar days 15-30 calendar days
Paper 65-100 calendar days 30-65 calendar days


Providers may check the status of a PECOS application on the Enrollment Application Status Search webpage. Be sure to direct any additional application related inquiries to the appropriate contact. See the Contact Information for Application Related Inquiries section below for direction.

Begin a PECOS Application

View steps to starting an initial enrollment, change of information, and revalidation application.

Initial Enrollment Application
  • Log in
  • Select "My Associates" button
  • Select "Create Initial Enrollment Application" button
  • Select enrollment that requires an application
  • If unable to find enrollment needed, view information for the I&A
  • Answer questions in Application Questionnaire that populates
  • Complete all topics in PECOS application
Change of Information Application
  • Log in
  • Select "My Associates" button
  • Scroll down and select "View Enrollment" next to enrollment that requires an update
  • Scroll down and select "More Options" in Existing Enrollment box
  • Select "Perform a Change of Information to Current Enrollment Information"
  • Answer questions in Application Questionnaire that populates
  • Select topic that requires an update

Hint: If changing from one practice location to another, delete the old location and add the new. An end-date is required to be completed for each location the enrollment is no longer affiliated with.

Start a Revalidation Application Option One
  • Log in
  • Scroll down and select "Revalidation Notification Center"
  • Select "Start Revalidation" under "Action" column
  • If there is a red number symbol (#) a surrogacy request has not been made. View information for the I&A
Option Two
  • Log in
  • Select "My Associates" button
  • Scroll down and select "View Enrollment" next to enrollment that requires an update
  • Scroll down and select "Revalidate" in Existing Enrollment box
  • Review each topic in application to ensure all information is up to date


Application Signatures Required

  • A PECOS application is not considered "received" until all signatures are accurately submitted
  • If any signatures (e-signature or paper certification statement) are not included, within the 20 calendar days, application will reject
  • If there is a delay in signing PECOS application, this can affect effective date of enrollment, if new. It may potentially impact a requested revalidation for an enrollment as well
  • If AO or provider has not received request for signature email, check junk or spam email inbox.
    • If not in this location, request for signature email can be resent to applicable people. View "How to Resend Signature Email" Enrollment on Demand tutorial

Contact Information for Application Related Inquiries

Because Noridian does not maintain the PECOS system, the Enrollment Contact Center (ECC) is limited to the assistance provided during a phone call.

Contact Noridian Contact EUS
  • Starting an application
  • Ensure all signatures are completed
  • Development requests
  • Resubmitting an application
  • Walk through entire application
  • Forgotten user ID/password inquires
  • Registering for PECOS
  • System functionality issues

This is not an all-inclusive list


The CMS "Who should I call?" CMS Provider Enrollment Assistance Guide may also help as it outlines which phone calls should go to EUS and which calls should go to Medicare Administrative Contractors (MACs).


Last Updated Dec 09 , 2023