Chembio Diagnostics, Inc. announced the appointment of Larry Steenvoorden as Chief Financial Officer effective immediately. Mr. Steenvoorden served as a Senior Director at Accordion Partners, providing CFO advisory services to private equity backed companies for the past four years, and as the Chief Accounting and Financial Officer for Onyx Renewable Partners for the preceding two years. Previously, Mr. Steenvoorden had a 15-year career at Siemens holding roles of increasing responsibility, ultimately as Global Controller & Vice President, Business Planning & Controlling for Siemens Healthcare Diagnostics.