His previous roles have been with NYU Langone Medical Center as assistant nurse manager and senior nurse clinician. At HSS, Ruben is involved in perioperative advanced care for patients with diabetes and patient caregiver comprehensive education and counseling. His leadership role in professional development includes creating educational programs to provide up-to-date evidence-based training for hospital personnel caring for patients with diabetes. Investing in the future is also important to Ruben as he mentors nurse practitioner students from area colleges, provides education to newly hired employees, and maintains ongoing education to inpatient staff. He assists in systemwide policy and practice with interdisciplinary collaboration.