Chiropractors are not medical doctors. Chiropractors are doctors recognized by federal law and the Department of Health and Human Services. Like other doctors, chiropractors must earn a degree from an accredited college or university. A chiropractor usually has four years of undergraduate training where they graduate with a premed major. From there they must take four years to attend a chiropractic graduate program. They must sit and pass a board exam to earn a practicing Dr. of chiropractic license. After graduation and receiving the license they must continue to receive training and education to keep their license.