5 biggest ASC companies by market share in 2025

Around 33.5% of freestanding ASCs are owned and operated by chains, according to the VMG Health 2025 Healthcare M&A Report.

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United Surgical Partners International has the largest market share by number of centers in the network. Here is the breakdown of the five companies cornering the market.

1. Dallas-based USPI, part of Tenet Healthcare: 8.1%

2. Deerfield, Ill.-based SCA Health, part of Optum: 5%

3. Nashville, Tenn.-based AmSurg: 3.9%

4. Nashville-based HCA Healthcare: 2.3%

5. Brentwood, Tenn.-based Surgery Partners: 2%

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