Work in a medical billing department for a large hospital system. Been given directives via email by supervisors to participate in unethical behaviors that would impact Medicare reimbursement that violate industry standards and guidelines. Have considered corporate compliance officer, but I know this will be traced back to me as I have already voiced my concern to managers that they are suggesting that I not follow the rules. I have been warned about my behavior, and fear that they will find a way to terminate me. This is a big health care system, they are all about $$$, they will squash me. Any suggestions? Should I just go directly to OIG?