If you have already registered with PECOS here is the documentation from CMS providing you with the List of Providers who are also registered in PECOS. It is important to remember that a provider you refer to must also be in PECOS or you risk having your claim denied by Medicare. This is working out to be very similar to the NPI transition a few years ago which everyone should remember with different phases and penalties. Will they ever stop changing things, I guess for the sake of our business we should hope not…
PECOS is a great system but does still need some major improvements. If you are unsure if you are enrolled properly, visit www.pecos.com and login using your Individual NPI information. You will want to view My Enrollments and see what shows up. Odds are that if nothing is listed under My Enrollments then you are not entered into their system properly.
You can also use this document below to see if you are listed in Pecos.