Here are the 15 leading acute-care, for-profit hospital operators in the United States. Note: Companies are listed in order of the number of hospitals, according to the company's website.
Hospital Corporation of America (Nashville, Tenn.).
Number of hospitals: 164
CEO: Richard Bracken
2010 revenue: $30.683 billion
Community Health Systems (Brentwood, Tenn.).
Number of hospitals: 126
CEO: Wayne Smith
2010 revenue: $12.986 billion
Health Management Associates (Naples, Fla.).
Number of hospitals: 59
CEO: Gary D. Newsome
2010 revenue: $5.115 billion
LifePoint Hospitals (Brentwood, Tenn.).
Number of hospitals: 52
CEO: William F. Carpenter III
2010 revenue: $3.26 billion
Tenet Healthcare Corp. (Dallas).
Number of hospitals: 49
CEO: Trevor Fettor
2010 revenue: $9.205 billion
Vanguard Health System (Nashville, Tenn.).
Number of hospitals: 26
CEO: Charles N. Martin, Jr.
2010 revenue: $3.377 billion
Universal Health Services (King of Prussia, Penn.).
Number of hospitals: 22 (acute care)
CEO: Alan B. Miller
2010 revenue: $5.57 billion
IASIS Healthcare (Franklin, Tenn.).
Number of hospitals: 17
CEO: W. Carl Whitmer
2010 revenue: $2.5 billion
National Surgical Hospitals (Chicago).
Number of hospitals: 14
CEO: John G. Rex-Waller
2010 revenue: Not available
Prime Healthcare Services (Inglewood, Calif.).
Number of hospitals: 14
CEO: Lex Reddy
2010 revenue: Not available
Capella Healthcare (Brentwood, Tenn.).
Number of hospitals: 13
CEO: Daniel S. Slipkovich
2010 revenue: Not available
Ardent Health Services (Nashville, Tenn.)
Number of hospitals: 7
CEO: David T. Vandewater
2010 revenue: Not available
SunLink Health Systems (Atlanta).
Number of hospitals: 7
CEO: Robert M. Thornton, Jr.
2010 revenue: $197.8 million
Steward Health Care System (Boston)
Number of hospitals: 6
CEO: Ralph de la Torre, MD
2010 revenue: Not available
Foundation Surgical Hospital Affiliates (Oklahoma City).
Number of hospitals: 3
CEO: Thomas A. Michaud
2010 revenue: Not available
Hospital Corporation of America (Nashville, Tenn.).
Number of hospitals: 164
CEO: Richard Bracken
2010 revenue: $30.683 billion
Community Health Systems (Brentwood, Tenn.).
Number of hospitals: 126
CEO: Wayne Smith
2010 revenue: $12.986 billion
Health Management Associates (Naples, Fla.).
Number of hospitals: 59
CEO: Gary D. Newsome
2010 revenue: $5.115 billion
LifePoint Hospitals (Brentwood, Tenn.).
Number of hospitals: 52
CEO: William F. Carpenter III
2010 revenue: $3.26 billion
Tenet Healthcare Corp. (Dallas).
Number of hospitals: 49
CEO: Trevor Fettor
2010 revenue: $9.205 billion
Vanguard Health System (Nashville, Tenn.).
Number of hospitals: 26
CEO: Charles N. Martin, Jr.
2010 revenue: $3.377 billion
Universal Health Services (King of Prussia, Penn.).
Number of hospitals: 22 (acute care)
CEO: Alan B. Miller
2010 revenue: $5.57 billion
IASIS Healthcare (Franklin, Tenn.).
Number of hospitals: 17
CEO: W. Carl Whitmer
2010 revenue: $2.5 billion
National Surgical Hospitals (Chicago).
Number of hospitals: 14
CEO: John G. Rex-Waller
2010 revenue: Not available
Prime Healthcare Services (Inglewood, Calif.).
Number of hospitals: 14
CEO: Lex Reddy
2010 revenue: Not available
Capella Healthcare (Brentwood, Tenn.).
Number of hospitals: 13
CEO: Daniel S. Slipkovich
2010 revenue: Not available
Ardent Health Services (Nashville, Tenn.)
Number of hospitals: 7
CEO: David T. Vandewater
2010 revenue: Not available
SunLink Health Systems (Atlanta).
Number of hospitals: 7
CEO: Robert M. Thornton, Jr.
2010 revenue: $197.8 million
Steward Health Care System (Boston)
Number of hospitals: 6
CEO: Ralph de la Torre, MD
2010 revenue: Not available
Foundation Surgical Hospital Affiliates (Oklahoma City).
Number of hospitals: 3
CEO: Thomas A. Michaud
2010 revenue: Not available