Division of Infectious Diseases, Harbor-UCLA Medical Center 
Leading Patient Care, Training & Research

Excellence Mission:

  • Quality Patient Care
  • Training & Education
  • Leading Research
  • Community Service


Dr. Mallory D. Witt attended medical school at the Stanford University School of Medicine, received her training in internal medicine at UCSF, and completed an Infectious Diseases fellowship at Harbor-UCLA.  She is Professor of Medicine at the David Geffen School of Medicine at UCLA, Associate Chief, HIV Medicine, and the Director of the HIV Clinics at Harbor-UCLA Medical Center.  She also serves as the Associate Program Director for Internal Medicine at Harbor-UCLA.  In her role as HIV Clinic Director, Dr. Witt oversees the care of approximately 800 HIV+ patients, with over 400 clinic visits per month.  Dr. Witt has served as the site Principal Investigator for a wide variety of federal and state-funded studies of HIV and its complications.  She is a co-investigator in the AIDS Clinical Trials Group (ACTG), a member of the California Collaborative Treatment Group (CCTG), and is a principal investigator in two natural history studies: the Multicenter AIDS Cohort Study (MACS) and the CDC-sponsored Adult and Adolescent Spectrum of Diseases Study (ASD).  Her research interests include  evaluation of the HIV therapies, adherence to antiretroviral therapy, cardiovascular and other complications of HIV therapy, neurologic manifestations and neuroimaging of HIV disease, and HIV testing in the emergency setting.


 Harbor-UCLA Medical Center is an active and integral training campus of the broader    David Geffen School of Medicine at UCLA

Join us as we meet the challenges of infectious diseases in the 21st century