The Washington University ID-CRU and ACTU are is known for their expertise and are well established in the community. Led by Rachel Presti, MD, PhD, the ID-CRU provides access to HIV and infectious diseases research opportunities, community outreach and education. Our lead faculty in these areas are:
- NIH AIDS Clinical Trials Unit – Principal Investigator – Rachel M. Presti, MD, PhD
- St. Louis STI/HIV Prevention Training Center – Medical Director – Hilary E. L. Reno, MD, PhD

Shashwatee Bagchi, MD, MS, MSc
Associate Professor of Medicine
- Email: bagchi@wustl.edu
Dr. Bagchi specializes in clinical and translational research with a focus on cardiometabolic and vascular complications of infections.

Ernie-Paul Barrette, MD, FIDSA, FACP
Professor of Medicine
- Phone: 314-747-0164
- Email: epbarrette@wustl.edu
Dr. Barrette specializes in the primary care of patients living with HIV infection and AIDS. He has a special interest in opioid use disorder.

Joseph N. Cherabie, MD, MSc
Assistant Professor of Medicine
- Phone: 314-454-8254
- Email: jcherabie@wustl.edu
Dr. Cherabie specializes in sexual health care with a focus on LGBTQIA+ health, sexually transmitted infections (STI), and HIV, all within the lens of medical education.

Elvin H. Geng, MD, MPH
Professor of Medicine
- Email: elvin.geng@wustl.edu
Dr. Geng conducts research to advance the use of evidence-based interventions in the public health response to HIV and COVID-19 as well as increasingly for non-communicable diseases as well.

George B. Kyei, MBChB, PhD
Associate Professor, Departments of Medicine and Molecular Microbiology
- Phone: 314-454-8354
- Fax: 314-454-5392
- Email: gkyei@wustl.edu
Dr. Kyei specializes in HIV basic and translational research, with a special focus on viral latency and reactivation specifically: (i) characterization of factors that control HIV replication in macrophages, dendritic and resting T cells and (ii) identification of cellular factors and small molecules required for HIV reactivation in latently infected cell and (iii) perspectives of HIV patients on HIV cure.

Madeline McCrary, MD
Assistant Professor of Medicine (Sept 2023)
- Email: mccrary@wustl.edu
Dr. McCrary specializes in clinical infectious diseases and addiction medicine with a special focus on the infectious complications of substance use, such as Hepatitis C and Serratia endocarditis, and related quality improvement initiatives.

Carlos Mejia, MD
Assistant Professor of Medicine
- Phone: 314-454-8215
- Email: carlosmejia@wustl.edu
Dr. Mejia-Chew specializes in mycobacterial infections, particularly nontuberculous mycobacterial (NTM) infections.

Aaloke Mody, MD
Assistant Professor of Medicine
- Phone: 3144548215
- Email: aaloke.mody@wustl.edu
His overarching research interests are in utilizing implementation science and epidemiologic methods to better understand how to deliver high-quality and patient-centered HIV care in routine practice resource-limited settings

Jane O’Halloran, MD, PhD
Associate Professor of Medicine
- Phone: 3144548354
- Email: janeaohalloran@wustl.edu
Dr. O’Halloran specializes in clinical and translational research in infectious disease, with a special focus on HIV, SARS-CoV-2 and other viral infections.

Luis Parra-Rodriguez, MD
Assistant Professor of Medicine
- Email: lparra-rodriguez@wustl.edu
Dr. Parra-Rodriguez specializes in the longitudinal clinical care of people with HIV, with a special clinical research focus on aging, age-related clinical conditions, and mental health in people with HIV.

William G. Powderly, MD
J. William Campbell Professor of Medicine & Co-director, Infectious Diseases Division
- Phone: 314-454-8287
- Fax: 314-454-8294
- Email: wpowderly@wustl.edu
Dr. Powderly has been actively involved in HIV-related clinical research for over thirty years with specific interests in opportunistic infections, metabolic complications and long-term outcomes of antiretroviral therapy.

Rachel M. Presti, MD, PhD
Professor of Medicine
- Phone: 314-454-8215
- Fax: 314-454-5392
- Email: prestir@wustl.edu
Dr. Presti specializes in clinical and translational research in infectious disease, with a special focus on HIV, SARS-CoV-2 and other viral infections.

Aditi Ramakrishnan, MD, MSc
Assistant Professor of Medicine
- Email: aditir@wustl.edu
Dr. Ramakrishnan’s research focuses on applying implementation science strategies to improve domestic HIV prevention and care, particularly for cisgender women.

Hilary E.L. Reno, MD, PhD
Associate Professor of Medicine
- Phone: 314-454-8354
- Fax: 314-454-5392
- Email: hreno@wustl.edu
Dr. Reno specializes in sexual health care, with a special focus on the clinical care of sexually transmitted infections (STI) and the intersection with HIV prevention.

Daniel T. Vo, MD
Assistant Professor of Medicine
- Email: d.vo@wustl.edu
Dr. Vo’s joined the faculty in 2021. His interests lie with HIV/STI/PrEp and Public Health and Implementation Science.
Mental Health & Substance Abuse Key Faculty

Julia López, PhD, MPH, LCSW
Assistant Professor of Medicine
- Phone: 314-454-8249
- Email: julialopez@wustl.edu
Dr. López is a public health researcher who uses her clinical practice skills to further advance the field of sexual health using public health and social work theories and frameworks.