EXHIBIT 16 Bierwolf, Nilson & Associates A Partnership of Certified Public Accountants Professional 1453 South Major Street Nephi J. Bierwolf, CPA Corporations Salt Lake City, Utah 84115 Troy Nilson, CPA March 1, 2004 Securities and Exchange Commission Washington, DC 20549 Re: Zynex Medical Holdings, Inc.. Gentlemen: We have read Item 4 "CHANGES IN REGISTRANT'S CERTIFYING ACCOUNTANTS" contained in Zynex Medical Holdings, Inc.'s 8-K and are in agreement with the statements contained therein, as they relate to our firm. Very truly yours, /s/ Bierwolf, Nilson & Associates Bierwolf, Nilson & Associates Salt Lake City, Utah