Dr. Reuben is Director, Multicampus Program in Geriatrics Medicine and Gerontology and Chief, Division of Geriatrics at the University of California, Los Angeles (UCLA) Center for Health Sciences. He is the Archstone Foundation Chair and Professor at the David Geffen School of Medicine at UCLA and Director of the UCLA Alzheimer’s and Dementia Care program. Dr. Reuben is a past President of the American Geriatrics Society and former Board Chair, American Board of Internal Medicine.  

In 2012, Dr. Reuben received one of the first CMMI Innovations Challenge awards to develop a model program to provide comprehensive, coordinated care for patients with Alzheimer’s Disease and other dementias.  In 2014, he was one of three principal investigators to be awarded a multicenter clinical trial (STRIDE) by the Patient-Centered Outcomes Research Institute (PCORI) and the National Institute on Aging (NIA) to reduce serious falls related injuries; it is the largest grant that PCORI has awarded. In 2018, he was awarded a multi-site PCORI- and NIA-funded pragmatic trial to compare the effectiveness of health system-based dementia care versus community-based dementia care versus usual care.

Dr. Reuben continues to provide primary care for frail older persons, including making house calls.