Some patients referred to Tennova Cardiology by Summitt Medical Center are being warned that their personal information may have been stolen . According to a press release from Tennova , a laptop belonging to an independent , third - party transcription contractor was stolen from a vehicle in Nashville on October 22 . " Tennova Cardiology has no reason to believe that this information has been accessed or misused in a way that would cause harm to the affected patients . The unencrypted laptop contained data from patients referred to Tennova Cardiology by Summit Medical Group for cardiac diagnostic tests . The diagnostic tests were performed at the Summit diagnostic services locations , " the release said . Tennova said they are working to identify all patients whose information may have been on the laptop and has mailed a letter to the 2,777 patients who may have been affected . The information on the stolen laptop may include names , dates of birth , referring physician names , and health information about patient treatment and diagnostic procedures . There is no evidence that any Social Security numbers were included in the information contained on the laptop . The contractor is no longer performing services for the physician group . If you think your information may have been compromised , you can call ( 866 ) 369 - 0422 for more information . ;