She serves as a consultant dietitian for Ultragenyx, a clinical-stage biotechnology company. She teaches nutrition classes at Cal Poly Pomona; CSU, San Bernardino; and Loma Linda School of Allied Health and School Public Health. Geary Hook has been named an Outstanding Dietetics Educator by the American Dietetic Association and serves on many committees working on nutrition protocols. She volunteers her time with the California Coalition for Phenylketonuria (PKU) and Allied Disorders, the Pasadena animal rescue, and the March of Dimes. Geary Hook lives in Southern California with her husband, Frederic Hook (Class of 1985, Engineering), and would like to spend her spare time finishing up her doctorate.