how long does it take to get np license
1 Your NP registration certificate will authorize you to practice as a NP for 3 years. 2  You must renew your NP registration and your RN registration with NYSED in order to continue practicing as a nurse practitioner.he fee for certification and initial registration to practice as a nurse practitioner (NP) in each specialty practice area is $85. ($50 certificate application fee plus a $35 fee for initial registration.).