I am very happy to have posted the question about the difference between NP and PA concerning sophistication, salary, and scope of practice. I found every answer valuable, and I thank every one of you. Concerning salary, I do not know what to say about that, because here in Dallas, TX, PAs and NPs make $31.00/hr minimum. You might wish to look at Parkland Hospital System and check out their employment website. www.parklandcareers.com/job_search.aspx. I found no difference in salary scale up to NP 2 and PA 2 (three years experience) What I do not understand is why NPs cannot specialize or sub-specialize in Radiology, but can order, read and interpret results. Again, many BSN nurses have Science degrees, so is clinical training for NPs going to change to reflect this science background? About sophistication, NPs are more educated than PAs, but this advanced education did not reflect in increase in salary why? AANP may have to look into that to find out why it is so?