By "personalized" medicine, i'm presuming you're referring to "concierge" medicine since all medical practice should be personalized.
Concierge is a business model-you pay a regular fee and the doc is "your doc". How complete the care will be depends on his/her specialty. Dilated cardiomyopathy
is diagnosed by echo
and confirmed by heart
cath. Cardiologists routinely take care of such patients.