A chiropractor's medical file usually includes case history as well as physical examination information and test results. The state may require chiropractors keep a client's files for six years or until a patient turns 22. Unless the client agrees that these files remain confidential. If you're unsure of whether any chiropractor has kept your information it is recommended to request copies and ask the doctor whether he's willing to provide you with an example. In order to cover the costs of copying, a small charge could be assessed.