- Ph.D. in Clinical Pharmacy, Purdue University
- M.S. in Hospital Pharmacy, University of Florida
- B.S. in Pharmacy, Samford University
In 1972, McKenzie joined the UF College of pharmacy and assumed clinical pharmacy responsibilities in the Pediatric Department of Shands Teaching Hospital. In 1984, he was appointed as Assistant Dean for Student Affairs responsible for recruitment, pre-pharmacy counseling, financial aid, awards, academic performance, registration, examination scheduling, classroom scheduling, and faculty advisement. In 1989, he was promoted to Professor of Pharmacy in the Department of Pharmacotherapy and Translational Research and as Associate Dean for Student Affairs. In 2005, he was promoted to Senior Associate Dean for Professional Affairs. He served as the Associate Dean for Students Affairs until May 2016.