Ihab Hajjar, M.D., is a Professor in the Department of Neurology and the Department of Internal Medicine at UT Southwestern Medical Center. He specializes in geriatric medicine, Alzheimer's disease, and hypertension. He holds the Pogue Family Distinguished University Chair in Alzheimer's Disease Clinical Research and Care, in Memory of Maurine and David Weigers McMullan.

Dr. Hajjar earned his medical degree at the American University of Beirut in Lebanon. He completed internal medicine residency training at the Cleveland Clinic Foundation in Ohio and gained advanced training through a fellowship in geriatric medicine and dementia at the Medical College of Wisconsin in Milwaukee.

Certified by the American Board of Internal Medicine in geriatric medicine and internal medicine, he joined the UT Southwestern faculty in 2022.

Prior to UT Southwestern, Dr. Hajjar served as Medical Director of Integrated Memory Coordinated Care, Director of the Dementia Fellowship, and Co-Director of the Clinical Core and Research Education Component in the Goizueta Alzheimer’s Disease Research Center at Emory University.

Dr. Hajjar is a Fellow of the American College of Physicians, the American Geriatrics Society, and the Society of Geriatric Cardiology. He is a member of the American Medical Association, the American Society of Hypertension, the International Society to Advance Alzheimer's Research and Treatment, and the Alzheimer’s Clinical Trials Consortium.


Medical School
American University of Beirut Faculty of Medicine, Lebanon (1994)
American University of Beirut Faculty of Medicine, Lebanon (1995), Internal Medicine
Cleveland Clinic Foundation (1998), Internal Medicine
Medical College of Wisconsin (2000), Geriatrics

Professional Associations/Affiliations

  • American Society of Hypertension
  • International Society to Advance Alzheimer's Research and Treatment