That is about the most Ludacris post I have witnessed you make.
Well you are so overreaching on HIPAA as to suggest that OP is in some violation of the law. He is not an employee to the company. And not disclosing a password to a workstation has absolutely nothing to do with disclosing medical records.
You need to learn to read. I said, "No, but the employer is...".
Having a nonauthorized person that can access a computer with protected records IS a violation of HIPAA.
And while the OP won't have a legal problem re:HIPAA he is going to look like an idiot in divorce court when the wife brings all this up.
OP doesn't have access to the network of his wife's company so what is the issue you are trying to make? His divorce proceedings have nothing to do with this shi*t about the password.