Is it permissible for an employee to use his private health insurance to obtain treatment for a family member's illness if it is similar to his own illness?

If the insurance is private for you at work, it is not permissible to deceive in order to obtain medical services for those of your family members who are not entitled to them, for the Prophet, peace and blessings be upon him, said: "Muslims are bound by their conditions." As for the medicine you legitimately obtained, there is no objection to giving it to whomever you wish.