Exhibit 16.1

May 10, 2017

Securities and Exchange Commission

100 F Street N.E.

Washington, D.C. 20549

We have been furnished with a copy of the response to Item 4.01 of Form 8-K/A for the event that occurred on April 21, 2017, to be filed by our former client, Addus HomeCare Corporation. We agree with the statements made in response to that Item insofar as they relate to our Firm.

Very truly yours,

/s/ BDO USA, LLP