File a Disability Claim You can choose to file your entire claim over the phone by calling the Cornerstone Claims Department at 847-387-3889, or you can complete the below form and schedule a time to finish the claim filing process. 1 Contact Information2 Employer Information3 Claim Information4 Availability Name* First Last Address* Street Address Address Line 2 City State ZIP Primary Phone*Phone Type*SelectHomeMobileWorkEmail Date of Birth* MM DD YYYY Union*Division*Employer*Job Title*Date of Hire* MM DD YYYY Last Day Worked* MM DD YYYY Date of Disability* MM DD YYYY Medical Condition*Estimated Time Off*Doctor's Name* First Last Doctor's Phone*Doctor's FaxDid your condition occur:*SelectOn the jobOff the jobIs your condition due to an:*SelectAccidentIllness Select a date/time to be contacted by a Cornerstone Claims Advocate to finish filing your claim Our business hours are Monday-Friday from 8:00am-5:00pmDate* MM DD YYYY Time* : HH MM AM PM Your Time Zone*EasternCentralMountain DaylightMountain StandardPacificAlaskaHawaii