BONUS
EMPLOYER PAYS MEDICAL BILLS FOR EMPLOYEE WHO HAS INSURANCE ELSEWHERE, HOW IS THIS TREATED?
EMPLOYER PAYS MEDICAL BILLS FOR EMPLOYEE WHO HAS INSURANCE ELSEWHERE, HOW IS THIS TREATED?

Undor normal circumstances this would be taxable income

So the employee gets reimbursed twice - once from his employer and once by his insurance company? That would be taxable compensation, subject to normal withholding.