Here are how many physicians the four largest ASC chains employ as of 2022:
USPI (Dallas): 11,000
SCA Health (Deerfield, Ill.) : 9,200
Surgery Partners (Brentwood, Tenn.): 4,600
HCA Healthcare (Nashville, Tenn.): 3,200 physicians
ValueHealth (Leawood, Kan.): 3,000+ physicians
AmSurg (Nashville, Tenn.): 2,000
