Our Company

Dr. Ralph de la Torre is the Chairman and CEO of Steward Health Care Systems LLC. Prior to founding Steward, Dr. de la Torre was CEO of Caritas Christi Health Care, where he led the transformation of a six-hospital system and developed the business model for Steward, which was subsequently invested in by Cerberus Capital Management.

Previously, Dr. de la Torre was founder and CEO of the Cardiovascular Institute at Beth Israel Deaconess Medical Center (BIDMC) and of Cardiovascular Management Associates, one of the nation's first totally integrated systems for treating cardiac patients. At the same time, Dr. de la Torre was Chief of Cardiac Surgery at BIDMC and a Harvard Medical Faculty Physician at BIDMC -- he was widely recognized as one of the top cardiac surgeons in the nation.

He has founded several health care-related businesses and has numerous issued or pending patents. A frequent commentator on national health care policy issues, Dr. de la Torre has bylined and/or been featured in BusinessWeek, Fortune, CNBC, The Wall Street Journal, and Fox Business, among other outlets. He was recently voted one of the 25 most powerful physician executives in the United States by Modern Healthcare magazine. Dr. de la Torre graduated from Duke University in 1988 (B.S.E.), where he was a member of Phi Beta Kappa and Tau Beta Pi, and from a joint program between Harvard Medical School (M.D.) and the Massachusetts Institute of Technology (M.S.) in 1992.

Dr. Mark Girard, President of the Northeast Hospital Region, is a national leader in disease management, population health, accountable care, clinical integration, and alternative payment models. An architect of Steward’s ACO and community care model, he previously served as President of Steward Hospitals. Dr. Girard is a graduate of Harvard Medical School and Bowdoin College. He also holds an MBA from the Salem State College Graduate School of Business.

Dr. Michael Callum is Executive Vice President of Physician Services Group, a network of physicians employed by Steward that includes both specialists and primary care physicians. Under his leadership, Steward Medical Group has emerged as a national leader in clinical integration, quality performance and patient outcomes-based reimbursement. Dr. Callum is a graduate of the Boston University School of Medicine, where he received his M.A. in medical science and his M.D. He also holds an M.S. in public health from the University of Rochester School of Medicine and Dentistry.

Rubén José King-Shaw, Jr., is the Chief Strategy Officer of Steward Health Care System and President of Steward Health Care Network. Mr. King-Shaw previously held the position of Chairman and Chief Executive Officer of Mansa Equity Partners, Inc, and was a member of Steward Health Care System’s board of directors. Throughout his career, he has spent considerable time in public service leading both state and federal government health programs. At the state level, under Florida Governor Jeb Bush, Mr. King-Shaw was the Secretary of the Florida Agency for Health Care Administration. The Agency was responsible for Florida’s State Medicaid Program, Health Quality Assurance, Survey and Certification of healthcare facilities, Managed Care and the Child Health Insurance Program (CHIP.)

Mr. King-Shaw also served as Deputy Administrator and Chief Operating Officer of the Centers for Medicare and Medicaid Services (CMS) from 2001 to 2003 during the administration of President George W. Bush. He was also senior advisor to the Secretary of the U.S. Treasury, where he led the Administration's Health Coverage Tax Credit policies to finance coverage for the uninsured. In 2011, Mr. King-Shaw was appointed to the Obama Administration's Program Advisory and Oversight Committee to monitor and provide guidance to Medicare's value-based purchasing program for Durable Medical Equipment. Currently, Ruben is an advisor to the Trump Administration in the areas of fraud, waste and abuse and alternative payment models.