Quest Diagnostics Incorporated announced that its board of directors has elected Ms. Tracey C. Doi to serve as a director. The Board appointed Ms. Doi to serve on the Board's Audit and Finance and Cybersecurity Committees. Including Ms. Doi, the company's board has 10 members. Ms. Doi is the Chief Financial Officer of Toyota Motor North America, where she is responsible for accounting, finance, tax and enterprise strategy. As an executive member of the North America Management Committee, Ms. Doi sets strategy and mid-to-long-term business plans, and drives initiatives to increase competitiveness in manufacturing, sales, marketing, digital technology and supply chain. She is a change agent skilled in strategic planning, business analytics, enterprise systems, risk and corporate governance.