Enroll in Medicare

Before jumping into Medicare Enrollment applications, it is best to be prepared. To ensure an enrollment has everything necessary to properly complete a Medicare application(s), access the below related information from this webpage.

Prepare and Get Started

Enrollments are required to use National Plan and Provider Enumeration System (NPPES) to obtain National Provider Identifier (NPI) and keep NPI information up-to-date, including addresses, phone numbers, and taxonomy codes

  • Enrollments must obtain at least one Type 2 (Organization) NPI. The number of type-2 NPIs an organization obtains is an individual business decision. Type 2 NPIs - Physician groups, hospitals, nursing homes, group practices, pharmacies (not all-inclusive listing)
  • When there are changes in information such as name, Tax Identification Number (TIN), address, primary practice location, taxonomy code, contact person and/or authorized officials, providers must update their NPPES information and their Medicare enrollment within 30 days
  • View National Provider Identifier (NPI) webpage for more details

Application Timeframes

Application Type Processing Time
PECOS On average, it can take 15 to 50 calendar days before application is sent to state and CMS for approval
Paper On average, it can take 30 to 65 calendar days before application is sent to state and CMS for approval


  1. Once Noridian has completed the reviewal of the application, a Recommendation for Approval Letter is sent to the State Agency and CMS. There is no set timeframe for their review.
  2. Additional days after State and CMS approval Noridian will have additional days to finalize enrollment records.

Required Applications and Tips

Submit in One of Two Ways

  1. Internet-based PECOS (highly encouraged method) - PECOS Web allows enrollments to securely submit applications and review/update current file information via Internet. Prior to submission, providers must upload all required supporting documentation and electronically sign certification statement
  2. Paper - Part A enrollments will need to complete an 855A application. Access form from Enrollment Forms webpage
    • Enrollment on Demands (EoDs) - Step-by-step self-paced tutorial to help filling out paper applications only. Watch our Enrollment on Demand tutorials

Enrollment Types Noridian Does Not Handle

Noridian does not process all specialty type applications; even if they are within the state we cover.

  • Histocompatibility Lab
  • Indian Health Services Facility
  • Organ Procurement Organization (OPO)
  • Religious Non-Medical Healthcare Institution (RNCHI

To find out which MAC processes the applications, go to the "Who are the MACs" page maintained by CMS.


Last Updated Dec 09 , 2023