They can't give out any information (HIPAA liability) about adults, even to family. If she is there, she can ask to use their phone to contact you. Her phone would be locked in her property until discharge (usally 3 days from intake) Good luck mate.
My wife just got out of there. Once she moves into transition and when she goes out of westcare like court or Doctor appointments she may take her phone. Otherwise the best thing to do is to call and leave a message for whoever your wife is and her councilor will make contact with her to let her know you are trying to get in touch with her!
Thanks! Your answer is awaiting moderation.