 He retired as dean in 2011, and was succeeded by Dr. Michael Lairmore.May 26, 2009 – Medical Management International, Inc. (MMI), which operates under the name Banfield, The Pet Hospital, appointed Bennie I. Osburn, DVM, Ph.D., DACVP to its board of directors.Dean Osburn earned his BS and DVM degrees at Kansas State University and a Ph.D. in Comparative Pathology at the University of California, Davis.