Who We Are

The AIDS Research Institute counts as its constituent members more than 600 researchers, clinicians and staff working in dozens of programs and laboratories throughout UCSF's 4 professional schools—Dentistry, Medicine, Nursing and Pharmacy—and its affiliates and collaborators both local and around the world. Of these, some 40 faculty are members of the ARI Executive Committee, offering advice and insight to steer our course. A core Leadership Committee works closely with the ARI director to make funding and policy recommendations. At the heart of all this is a small, dedicated staff who make things run.

Paul A. Volberding, MD
Paul Volberding


Dr. Volberding is widely considered one of the world's leading AIDS experts. He cofounded one of the first AIDS-designated clinics in the world in the early 1980s at San Francisco General Hospital which has since evolved into the top-rated medical care facility for AIDS in the country. He has served on numerous key national strategic planning, policy, and clinical committees over the course of the epidemic. He is currently director of the UCSF AIDS Research Institute and director of the Center for HIV Information, which manages one of the most heavily trafficked websites for HIV information, HIV InSite. He maintains an active HIV outpatient practice at the San Francisco VA Medical Center, seeing a panel of patients he has treated for many years. In 1999, he was elected to the Institute of Medicine of the National Academy of Sciences, and he maintains editorial roles on multiple leading medical journals.

Larkin Callaghan

Director of Strategic Research Communications and Partnerships

As the director of communications and partnerships for the ARI, Dr. Callaghan oversees media, messaging, and translational research communications for the HIV enterprise at UCSF; relationships with community, city, and state partners; and partnerships with external governing and research bodies. Her experience encompasses work in academia, non-profits, and NGOs. As a UN correspondent, she covered global health and socio-political news in developing countries; as a research reporter for Women Under Siege she verified and codified some of the earliest cases of sexual violence in Syria's civil war. With bylines and as a ghostwriter, she translates science and policy research, crafts speeches, and advises pressers, media strategy, and PR for global health groups. Previously managing director of the UCSF-Gladstone Center for AIDS Research, director of global health education and training programs and professor of research methods at Stanford, and associate research scientist at ICAP, she has launched multilateral research-clinical partnership projects with foreign governments and federal agencies, negotiated financial and policy partnerships, and directed implementation, communications, and evaluation in over 20 countries in Africa, Latin America, the Caribbean, and SE Asia. She received her masters and doctoral degrees from Columbia.

Maya Smith

Program Coordinator

As the Program Coordinator for the ARI, Maya works closely with the ARI staff leadership in the execution of the operational, fiscal, and outreach activities. Maya came to UCSF in 2015 where she served as a Practice Coordinator in Radiation Oncology. Prior to her time at UCSF, Maya served in the clinical setting at Memorial Sloan Kettering Cancer Center in New York City. Trained in Public Health at Syracuse University, she has experience in public health outreach, health education, community outreach, and outpatient ambulatory care.

Georgina Lopez

Finance & Administration Director

Georgina is the director of finance and administration for the ARI, Institute for Global Health Sciences (IGHS), and the Department of Epidemiology and Biostatistics (DEB). Lopez oversees and manages all financial and administrative matters for the ARI, GHS and DEB. She manages all pre- and post-award functions, encompassing awards from a wide range of funding agencies including private, federal, state, local, international governmental, and international private organizations for all research projects of faculty and academic staff at GHS and DEB. She oversees operations at multiple off-campus locations including several local and international sites.

David McKey

Executive Assistant

For over twenty years, David has worked as senior executive assistant and office director to CEOs and Chief Medical Officers in international non-profit organizations; special assistant to the Ambassador-at-Large and Global AIDS Coordinator for PEPFAR under the Obama administration, and within IGHS at UCSF has supported senior medical leaders and key international global health initiatives.


ARI Membership Policies

Roles and Responsibilities of ARI Members, Executive Committee and Leadership Committee