Andrew Medvedovsky, a board-certified neurologist who is considered a top medical marijuana doctor in the state, said many more patients will now be able to obtain cannabis to treat their pain. "Generally, about one-third of the population lives with chronic pain," he said. "That number alone will give you an idea of the possible number of patients who would qualify, and when you add in anxiety and migraines, you could be looking at about 60 percent" of patients in the state, he said.