Download the list of Physician assistants in United States. Smartscrapers provides an accurate directory and the latest data on the number of Physician assistants in United States There are 45155 Physician assistants in United States as of April 1, 2026; which is an 0.00% increase from 2023. Of these locations, 20604 Physician assistants which is 45.63% of all Physician assistants in United States are single-owner operations, while the remaining 24551 which is 54.37% are part of larger brands. The top three states with the most Physician assistants are California with 3497 Physician assistants, Texas with 3049 Physician assistants, New York with 3035 Physician assistants. Average age of Physician assistants in United States is 4 years and 9 months.