New Amsterdam is an American medical drama television series, based on the book Twelve Patients: Life and Death at Bellevue Hospital by Eric Manheimer, that premiered on September 25, 2018 on NBC. The series was created by David Schulner and stars Ryan Eggold, Freema Agyeman, Janet Montgomery, Jocko Sims, Anupam Kher, and Tyler Labine. In February 2019, it was announced that the series had been renewed for a second season, which premiered on September 24, 2019. In January 2020, NBC renewed the series for three additional seasons. The third season premiered on March 2, 2021. The fourth season premiered on September 21, 2021.