Check your local state laws as theres no federal law requiring confidentiality. And you said your parents took you. Was this not a normal person you usually see? If your parents set up the appointment and you went willingly they could be considered 3rd party and this quote may apply to you.

"If individuals are examined by a physician at the request of a third party (such as an insurance company or their employer), no matter how thorough or extensive the examination, or how friendly the doctor, there is generally no physician-patient relationship and no duty of confidentiality is owed to the patients. This is because they did not seek the physician's advice or treatment, and the relationship is at "arm's-length." "

taken from here.