Caroline Grady Castillo, M.D.

  • Adjunct Assistant Professor of Medicine, Division of Infectious Diseases, School of Medicine


Dr. Castillo received her undergraduate degree from University of Notre Dame and a doctorate of medicine from University of Washington School of Medicine in 2010 where she completed the Global Health Pathway. Following medical school, she completed internal medicine internship and residency at the Mayo Clinic in Rochester, Minnesota where she practiced as a hospitalist for one year. Dr. Castillo continued postgraduate fellowship training in Infectious Diseases at the University of Michigan and then joined the CDC Epidemic Intelligence Service for additional training in applied epidemiology and public health leadership. During EIS, she was assigned to the Communicable Diseases Division at the Michigan Department of Health and Human Services where she assisted with outbreak investigation and response including the state’s largest hepatitis A outbreak in the post-vaccine era.  

Since joining the faculty at Oregon Health & Science University (OHSU) in 2019, Dr. Castillo enjoys connecting with patients on the inpatient ID consult service and outpatient general ID clinic. She balances clinical practice with interests in hospital epidemiology and hospital-associated infection prevention as Medical Director of Infection Prevention & Control at OHSU Tuality Healthcare.  She is board certified in internal medicine and infectious diseases. In her spare time, she enjoys yoga, scuba-diving, and exploring new parks, trails, and community centers with her 2 young children, husband, and chocolate lab.

Education and training

    • M.D., Global Health Pathway, University of Washington School of Medicine
  • Residency

    • Internal Medicine, Mayo Clinic, Rochester, MN
  • Fellowship

    • Infectious Diseases, University of Michigan, Ann Arbor, MI
    • pidemic Intelligence Service, Michigan Department of Health and Human Service, Centers for Disease Control and Prevention
  • Certifications

    • American Board of Internal Medicine
    • American Board of Internal Medicine, Infectious Diseases

Areas of interest

  • General infectious diseases, HIV
  • Travel medicine, neglected tropical diseases
  • Prevention of healthcare-associated infections
  • Public health, emerging infectious diseases, and outbreak investigations