EXHIBIT 16 Office of the Chief Accountant Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 April 18, 2002 Dear Sir/Madam: We have read the 2nd, 3rd, and 4th paragraphs of Item 4 included in the Form 8-K/A dated April 18, 2002 of Pinnacle Financial Partners, Inc. to be filed with the Securities and Exchange Commission and are in agreement with the statements contained therein. Very truly yours, /s/ Arthur Andersen cc: Mr. Harold Carpenter, CFO, Pinnacle Financial Partners, Inc. Page 5