126,000 practicing PAs [0]
325,000 licensed NPs [1]
985,000 practicing physicians (MDs and DOs) [2]
I know that nurse practitioners are not under the same artificial residency constraints of MDs/DOs. I'm not sure about physician assistants.
For someone not in the U.S., NPs and PAs often do the same role as general practitioners/family doctors e.g. see patients, prescribe medicine, etc. They can also specialize.
[0] https://www.thepalife.com/physician-assistant-stats/
[1] https://www.aanp.org/about/all-about-nps/np-fact-sheet
[2] https://en.wikipedia.org/wiki/Physicians_in_the_United_State...