Dr. Weill is the former Director of the Center for Advanced Lung Disease and Lung and Heart-Lung Transplant Program at Stanford University Medical Center. He is currently the Principal of the Weill Consulting Group which focuses on improving the delivery of pulmonary, ICU, and transplant care.

Dr. Weill's writing has appeared in the Wall Street Journal, USA Today, Newsweek, the Chicago Tribune, the Washington Post, The Hill, and the Los Angeles Times. He also has appeared on Fox, CNN, the New York Times, the San Francisco Chronicle, and the Wall Street Journal. Dr. Weill's memoir Exhale: Hope, Healing, and A Life in Transplant was published in May of 2021. His debut novel, All That Really Matters, will be published in June of 2024.

Dr. Weill divides his time between New Orleans and Alys Beach, FL with his wife Jackie and two daughters, Hannah and Ava, and their dogs, Lucy and Frannie.