Johan Guillaume, MD

As an infectious disease specialist at NYU Langone, I am dedicated to providing care rooted in empathy and respect for each individual’s story. My philosophy is to offer clarity, compassion, and high-quality care, whether I am diagnosing a complex illness, preventing its spread, or guiding someone safely back to health. I believe that everyone deserves the opportunity to be the fullest version of themselves, and I am committed to helping my patients achieve this through comprehensive and personalized care.

I specialize in treating serious infections that often affect major organs such as the brain, lungs, heart, and bloodstream. In addition to my expertise in infectious diseases, I manage a wide range of patients with non-infectious conditions as a practicing hospitalist. My approach involves not only clinical precision but also a sense of responsibility to the broader community, ensuring that infections are contained and managed effectively to prevent their spread across hospital wards or neighborhoods.

Throughout my career, I have focused on building capacity and establishing systems to reduce the spread of infections in both hospital and community settings. This includes improving infection prevention protocols, preparing for future pandemics, and ensuring that every patient encounter contributes to our larger public health efforts. I am fortunate to work with a forward-thinking, diverse team dedicated to clinical excellence and innovative problem-solving, which enhances our ability to provide top-tier care.

My journey into medicine was inspired by early experiences witnessing how illness could interfere with individuals' ability to live their life fully, which fueled my passion and commitment to improving care at both the individual and systems level. I also have the joy of teaching the art and science of medicine to physicians in training, which continually deepens my own practice and reinforces my dedication to the field.