### Instruction: Based on this paragraph, who was Donald Trump's physician during 2018 to 2021?
### Input: Sean Patrick Conley (born 1980) is an American physician and United States Navy officer who served as the Physician to the President from 2018 to 2021. Conley served as physician to president Donald Trump during the COVID-19 pandemic, often serving as the president's medical advisor, and treating the president when he tested positive for COVID-19.
### Response: Sean Patrick Conley