You should start consulting with lawyers (telephone should suffice) to determine your rights, and find an attorney that you would work well with. Make sure you understand his/her fee structure, and what this may cost you before you sign any contract.
This isn't really a medical malpractice claim. It is a breach of confidentiality -- which implicates federal (HIPPA) and state laws. Often times there are statutory damages in addition to actual damages you sustained. I would find an attorney in your area that deals with this type of litigation. Best of luck.
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