The best way to start the process of filing a Social Security disability claim is to call Social Security at 1-800-772-1213 to schedule an appointment to file the claim. In most cases, the appointment will be done over the telephone. Another way is to go to the nearest Social Security office and wait (often for hours) to see someone to file the claim in person. You can also file online at http://www.socialsecurity.gov/applyfordisability/. Learn more here.