High Quality Content by WIKIPEDIA articles! Dilip V. Jeste, M.D. is an American geriatric psychiatrist, who specializes in successful aging and schizophrenia and other psychotic disorders in older adults. He is Distinguished Professor of Psychiatry and Neurosciences, Estelle and Edgar Levi Chair in Aging, and Director of the Sam and Rose Stein Institute for Research on Aging, at the University of California, San Diego School of Medicine.