All medical records are in paper form, not digital, and are stored for 10 to 12 years and then destroyed.  

If you feel you need a copy of part or all of your medical record, your new doctor will have the necessary paperwork and forms.  All requests must be in writing and have positive confirmation of identity.

All medical records are managed by :

Williams Data Management
1925 E. Vernon Ave.
Los Angeles,  CA  90058
phone 888-478 FILE  or 323 345 6301

you can go to their website or call directly for more assistance.