It depends on what country you are in. If you perform a simple web search with the word physiotherapists and the country or area that you are in you should be able to find what you are looking for.
The Department of Motor Vehicles keep records of who a car is registered to. However, this information is not available to the public.
Try looking in your local Yellowpages or checking the yellowpages website. You can also call a phone directory or even try asking your family doctor for a reccommendation.
Here in the UK we usually call them physiotherapists.
go to the secretary of states office and ask someone there
When that person dies a if a will has been registered in the system, then that will be sent out to the person on the top of the list and they sort it out. Or the will is with someone. And there are names on the will and what they will get.
* Don't get physiotherapists mixed up with low brow massage parlors. Physiotherapists have a degree in what they do and it's a job like any other job and there is no reason you should think they would untrustworthy.
No, not if you registered it with the DMV. It is now Public Records
Generally no, unless they are a registered sex offender. They can also find out if it was on the news, in the paper, or they tell the public themselves.
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The database of formal US registrations since 1978 is searchable at the link below.
We would search on Twitter, MySpace and Facebook to start with. It is quite likely that someone will know the person, or they may be registered.
IF your state requires registration, and most do not, then the state should have a database; however, that database is probably closed to the public.