People
Neil W. Anderson, MD, D(ABMM)
Assistant Professor, Pathology & Immunology Director, Residency Program
Identifying microorganisms from blood cultures.
Sarah Alleman, RN, MSN, NP-BC
Nurse Practitioner - Outpatient
- Email: salleman@wustl.edu
With a genuine and nurturing nature, combined with a professional and
ambitious approach, I possess the primary skills needed in my field,
including patient education and counseling.
Marcela Araujo de Oliveira Santana, MD
First Year Fellow
- Email: marcela@wustl.edu
Dr. Marcela Araujo de Oliveira Santana hails from Ponte Alta, Brazil. She earned her MD at Universidade Federal de Uberlandia before completing her residency through the WashU Medicine Graduate Medical Education Consortium in 2026. Dr. Araujo de Oliveira Santana's clinical interests include tropical and neglected infectious diseases, ID-critical care and mycosis. She plans to pursue a career in ID medical education.
One of Dr. Araujo de Oliveira Santana's favorite places in St. Louis is Forest Park, where she loves to go for runs and picnic with friends.
Why did you choose WashU Medicine for your ID fellowship?
"Since my first week of residency, the WashU ID Department has been exceptionally supportive of my goals and career plans. I’ve had outstanding experiences with the attendings, fellows, and other providers during my ID rotations, and the department truly feels like home. I’m excited to stay here for fellowship!"
Andrew Atkinson, PhD
Assistant Professor of Medicine
- Email: aandrew@wustl.edu
Dr. Atkinson is a biostatistician providing project-based and ad hoc consultancy in the division. His methodological research includes developing methods for handling missing data in clinical trials and for observational data, novel clinical trial design methods, trial emulation and Bayesian modelling.
Ishmael D. Aziati, PhD
Instructor of Medicine
- Email: idaziati@wustl.edu
Dr Aziati specializes in the use of integrated approaches to control and prevent emerging vector-borne and zoonotic viral diseases, with a special focus on pathogen surveillance and developing therapeutic interventions.
Hilary M. Babcock, MD, MPH, FIDSA, FSHEA
Professor of Medicine
- Phone: 314-454-8225
- Fax: 314-454-5392
- Email: hbabcock@wustl.edu
Dr. Babcock specializes in prevention of infection transmission in healthcare settings, both operationally and through her research, with a particular focus on respiratory viral infections. As BJC Healthcare Vice President and Chief Quality Officer with the BJC Center for Clinical Excellence, Dr. Babcock is responsible for BJC quality programs, including oversight of BJC-wide measurement systems and quality improvement initiatives. She also serves on the Bone and Joint/Orthopedic Infections inpatient consult service.
Thomas C. Bailey, MD
Professor of Medicine
- Phone: 314-454-8354
- Fax: 314-454-5392
- Email: tbailey@wustl.edu
Research Interest: Information technology to improve healthcare quality.
Megan Tierney Baldridge, MD, PhD
Professor, Departments of Medicine and Molecular Microbiology
- Phone: 314-273-1212
- Email: mbaldridge@wustl.edu
Dr. Baldridge studies the complicated interplay among three important factors: commensal microbes, the host immune system, and viral and bacterial pathogens.
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 and has a special interest in opioid use disorder.
Sourav Bhattacharya, PhD
Instructor in Medicine
- Email: bhattacharya_s@wustl.edu
Sourav Bhattacharya specializes in lung immunology and utilizes both experimental mouse models and human myeloid cells to explore the mechanisms that regulate immune homeostasis and drive inflammatory responses. He is a member of the Jen Philips Lab.
Jacco Boon, PhD
Professor of Medicine, Molecular Microbiology and Pathology and Immunology
- Phone: 314-286-0857
- Fax: 314-286-2784
- Email: jboon@wustl.edu
Dr. Boon specializes in basic research on RNA viruses, with a focus on emerging virus such as influenza virus, Bourbon virus and SARS-CoV-2.
Carrie L. Brandstetter, NP
Nurse Practitioner - In Patient
- Phone: 314-362-0906
- Email: carrieblythe@wustl.edu
Nurse Practitioner – Infectious Diseases Inpatient Service
Philip J. Budge, MD, PhD
Associate Professor of Medicine
- Phone: 314-747-5198
- Fax: 314-454-5392
- Email: pbudge@wustl.edu
Dr. Budge specializes in translational, public health-related research, with a special focus on filarial infections—insect-borne threadlike parasitic worms that cause lymphatic filariasis (elephantiasis), onchocerciasis (river blindness), and loiasis (African eye worm).
Carey-Ann D. Burnham, PhD, D(ABMM), FIDSA
Professor of Pathology & Immunology, Molecular Microbiology, Pediatrics, and Medicine
- Phone: 314-362-1461
- Email: cburnham@wustl.edu
Research Interest: resistance, with a focus on the transmission and epidemiology of multidrug resistant organisms (MDROs).
Jason P. Burnham, MD
Assistant Professor of Medicine
- Email: burnham@wustl.edu
Dr. Burnham specializes in clinical research and implementation science, with a special focus on telemedicine, multidrug resistant organisms, and climate change.
Anne Mobley Butler, PhD, MS, FISPE
Associate Professor of Medicine
- Phone: 314-454-8354
- Email: anne.butler@wustl.edu
Dr. Butler is a pharmacoepidemiologist with broad research interests in non-experimental studies, real-world data, comparative effectiveness research, and epidemiologic methods. She applies epidemiologic methods to clinical and claims data to study the prevention and treatment of common infections.