Naturopathic doctors have a minimum of 8 years of post-secondary training. To attend naturopathic medical school, one must first complete an undergraduate degree with the necessary pre-med courses. Naturopathic doctors attend a separate 4-year full time medical program at one of the 6 accredited colleges in North America. North American and state licensing boards must be passed in order to practice as a naturopathic doctor. Only 21 states, including NH, currently license naturopathic doctors. In NH, naturopathic medicine is a small profession and there approximately 60 naturopathic doctors in the entire state.