Webprovider enrollment, chain and ownership system. Pecos supports the medicare provider and supplier enrollment process by allowing registered users to. Webpecos supports the medicare provider and supplier enrollment process by allowing registered users to securely and electronically submit and manage medicare enrollment. Webpecos is the application that supports the medicare provider and supplier enrollment process by capturing provider/supplier information from the 855a, 855b, 855i, 855o,. Webenroll in pecos today so you can continue to provide your medicare patients with quality services from quest diagnostics. You can enroll online on the pecos website at. Application status indicates the phase that the application process is. Webcms provider enrollment assistance guide as it outlines which phone calls should go to external user services (eus) and which calls should go to medicare. Webpecos 2. 0 will make the medicare enrollment and revalidation processes faster and more efficient. Explore the educational videos and resources to learn about. Before any enrollment action can be taken by an individual using.