Question For Military Veterans Using The VA For Their Health Care?

I'm also in San Diego and have Tricare Prime with no issues, however all of my visits are with Scripps. Do you have the option to use local facilities instead of the VA?
When i went thru prostate cancer radiation surgery treatment, they farmed me out to the civilian UC Davis Medical Center for that, as the VA around here didn't do that type of procedure.
But other than that, I'm involved within the system at the Mather VA.