A post-master’s certificate is the best way to bridge from FNP to PMHNP as one of the shortest options for a master’s level education. Our PMHNP certificate can be completed in 20 months, providing current FNPs a fast path to taking the next step in their NP career. Discover the Herzing post master's PMHNP program Explore Now Other Questions Is a bachelor’s degree in healthcare administration worth it? How much does a physical therapist assistant make? What skills should an IT manager have? What is a surgical technologist vs. sterile processing technician?