Ask DHS - Inspector General
Can I make an anonymous report?
Yes, it is possible to make an anonymous fraud report. However, anonymous reports are not usually as reliable as those made when the reporting party is known. That is partly because the anonymous party may not provide sufficient detail to allow OIG to determine the reasonable suspicion required to justify a fraud investigation. Proving fraud occasionally relies on testimony of the complaining witness. However, if you want to remain anonymous, simply do not give your name when you call 1-800-784-5887. You can also mail an anonymous letter to DHS Office of Inspector General, P.O. Box 25352, Oklahoma City, OK, 73125.