Sally Smith has a doctorate in psychology. Note that doctoral is an adjective, doctorate a noun.
Degrees take periods and no spaces between letters.
D. Alumni are grouped by undergraduate degree year followed by name, degree and major. On second reference if abbreviations are used, the letters are uppercase with no periods. In a news release with more than regional distribution, use University of California, Irvine on first reference and UCI thereafter. Never use UC Irvine. In a release with local distribution, UCI is preferred on first reference.