You have asked this question several times in several ways over the past few days. Is there a specific answer that you are wanting to receive so that you can then feel justified in doing what you are going to do anyway?
The bottom line is that you have a lawyer representing you on this case. That lawyer is well aware of the Williamson County reputation, as well as their programs. Did you realize that there are few counties in Texas which have any program available on DWI to allow one to get a DWI case dismissed by participating in a progam? So, Williamson County does have at least 1 positive thing about its criminal prosecutions.
You need to do whatever your lawyer tells you to do.
(What may be a real concern in this situation is whether you can actually be successful at the program. If you have an alcohol addiction that you have repeatedly failed to overcome despite treatment, you may not be successful in the program and may well end up with the consequences of failure. The potential for failure may be a good reason to go to trial on the case IF feasible since there is limited evidence against you because of your various refusals. While you are on the program, you are likely to have to refrain completely from the use of alcohol. Can you do that?)
If you do not disclose where you have had treatment, even if the prosecutors or court were inclined to search for those records, how would they know where to look? There is no central reporting agency And yes, HIPPA does provide a lot of protection for your records.
BUT, are you answering the questions honestly to be considered, or are you lying and could be caught. In Harris County, potential candidates for the DIVERT program - one similar to that you have described - must take a SALCE - an drug / alcohol evaluation test which determines if someone has a problem. If the person "fails" the SALCE, then they are rejected from DIVERT.
You need to have a serious sit-down with your lawyer to talk about your issues and whether or not you should even be applying for this program. And, one big consideration on whether you should apply is whether your case can possibly be tried to a jury and won.
Although I have answered the question to try to help you, you should consult with a lawyer in your area in person on the matter. In addition, my answer does not establish an attorney-client relationship between us.
There is no requirement to share any information with most courts. I can sometimes be helpful however, to disclose certain information depending on the circumstances. This strategic decision is normally one which you would carefully consider with an experienced attorney to make sure it is beneficial and not a negative on your case.
As you note you have had multiple attempts at rehab with limited success. While the court cannot compel you to offer testimony against your interests, the state can likely discover this information if they dig deep enough. Additionally, if you attempt to resolve your matter through a pre-trial program there will likely be a alcohol evaluation. If you answer the questions honestly, which is truly in your best interests, the extent of your problem will possibly come out.
Bottom line, discuss all facts and your concern with your attorney and allow him/her to advise you about what the law requires adn mandates.
Good luck to you, and look at this as a chance to make a permanent change to your destructive addiction rather than just getting past it.
Sign up to receive a 3-part series of useful information and legal advice about DUIs.