The Sentinel Group, an Emdeon company  

To contact a Sentinel investigator:



Special Investigation Unit 847.597.4700

Toll-free Customer Service 877.453.7283

Fax: 608.752.6114


PO Box 2852
Clinton, IA 52733.9946

The Sentinel Group is a recognized leader in healthcare claims overpayment protection, combining an experienced team of investigators and the skillful application of technology. In its more than 20-year history, The Sentinel Group has provided unparalleled savings to its health carrier and Third Party Administrator clients.

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