Share on Pinterest A critical care physician talks about his experience treating patients for COVID-19. Dr. Raj Dasgupta, a pulmonary critical care physician, tested positive for COVID-19 in July. For months, Dr. Raj Dasgupta has been treating patients as a pulmonary critical care physician at Keck Medicine of the University of Southern California in Los Angeles. As more data comes, as people are talking more, as we share our experiences, I feel that patient care is getting better. I would say that if you’re waiting for fevers, cough, and shortness of breath, you’re going to miss an opportunity to get evaluated early.