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Provider Enrollment

Provider enrollment is a critical function for ensuring that only qualified individuals and entities meeting CMS eligibility criteria are enrolled in the Medicare program and receive reimbursement for services furnished to Medicare beneficiaries. Physicians, non-physician practitioners, suppliers, and other qualified providers must first enroll in the program in order to submit claims and receive payment for Medicare covered services.

Internet-based PECOS (Submit your application online)

Access to Internet-based PECOS
CMS Internet-based PECOS Information
Internet-based Medicare Provider Enrollment

Completing Your Application

Interactive Tool

Check the Status of your Enrollment Application

Enrollment Application Status Inquiry (EASI)

CMS Internet-based PECOS Education

PECOS Enrollment Example Webinar - Sole ProprietorZIP File
PECOS Enrollment Example Webinar - Sole OwnerZIP File
PECOS Enrollment Example Webinar - Change of InformationZIP File
PECOS Enrollment Example Webinar - Reassignment of BenefitsZIP File
PECOS Enrollment Example Webinar - Two DirectorsZIP File


Revalidation of Medicare Enrollment

Provider Enrollment Telephone Number

(866) 518-3285
7:00 am to 5:00 pm Central Time
Monday - Friday
Fax Number: (608) 224-3514

Provider Enrollment Addresses

Provider Enrollment
P.O. Box 8248
Madison, WI 53708-8248
Overnight Delivery Mailing Address
Provider Enrollment
1717 W. Broadway
Madison, WI 53713-1834

WPS GHA Provider Enrollment Information

Appealing Medicare Provider Enrollment Determinations
Deceased Associates & Individuals
Dentists - Part D Prescriber Enrollment Requirements
E-Mail Development Requests on Provider Enrollment CMS-855 Applications
Enrollment Effective Dates
Medicare Denial for Secondary Insurers
Medicare Enrollment of Ordering/Referring Providers
Physicians in Residency and Fellowship Programs
Provider Specialty Codes
Providers Responsibility for Knowing
Release of Medicare Provider Enrollment Information
Reporting Changes of Information
Return and Development of CMS-855 Enrollment Applications

Participation Information

The annual participation enrollment program for CY 2016 will begin in November 2015 and will run through December 31, 2015.

Medicare Participating Physician or Supplier Agreement
Medicare Participation for Calendar Year 2017
Medicare Participation Program

WPS GHA Resources

Independent Diagnostic Testing Facilities (IDTF)
New Providers
Opting Out of Medicare

CMS Links

CMS Forms
Medicare Provider-Supplier Enrollment


Find Provider Enrollment forms including the CMS 855B, 855I, 855R, and 855O enrollment applications, and the CMS Medicare Participating Supplier Agreement (CMS-460) on the Provider Enrollment Forms page.

Frequently Asked Questions (FAQs)

Find guidance about applications, National Provider Identifiers (NPIs), opting out of Medicare, and more on the Provider Enrollment FAQs page.