Dan F. Ausman

Methodist Hospital of Southern California provides health care services. It offers cardiology, colorectal surgery institute, Hollfelder emergency care center, gynecology and oncology institute, hyperbaric oxygen center, maternal child health, neurology, oncology, orthopedics, rehabilitation, senior services, stroke, surgical, weight loss surgery, and wound healing center. The company was founded in 1903 and is headquartered in Arcadia, CA.

Vanguard Health Systems, Inc. engages in the provision of hospital and health care services. It specializes in metropolitan hospital development, health and wellness, patient experience, and employee engagement. The company was founded by Charles N. Martin, Jr., Ronald P. Soltman, William Lawrence Hough and Joseph D. Moore on July 1, 1997 and is headquartered in Nashville, TN.