If the kid is not an employee it's a huge violation, they shouldn't even be allowed to use a computer that has access to health care data.
If they are an employee, they are only allowed to access the files they need to do their job (for example, it's technically a violation to look up your own files, having access and the files being about yourself is still a violation if it's not required to do your job).
There is no such thing as an exception (unless under 50 employees), everyone has to be HIPPA compliant if they are working with healthcare data.
Most company's have a compliancy hotline you can submit a tip too, but if you don't trust the company you can always submit the tip to the official HIPPA hotline.
Website with more info: https://www.cdc.gov/phlp/php/resources/health-insurance-portability-and-accountability-act-of-1996-hipaa.html