You'll be surrounded by many like-minded peers at Purdue University - Main Campus if you want to pursue a doctor's degree in registered nursing. Located in the small city of West Lafayette, Purdue is a public university with a very large student population. This isn't the only ranking where the school placed. It's also #1 in quality for doctor's degrees in registered nursing in Indiana. More information about a doctorate in registered nursing from Purdue University - Main Campus