President John Sullivan Retiring; Gregory Argyros, MD, Named Successor | MedStar Health

President John Sullivan Retiring; Gregory Argyros, MD, Named Successor

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Washington, D.C., May 2, 2018 — MedStar Health has announced plans to transition the leadership of MedStar Washington Hospital Center to Gregory J. Argyros, MD, MACP, FCCP, who will become the hospital’s President and a Senior Vice President of MedStar Health effective July 1, 2018. Dr. Argyros succeeds John Sullivan, who is retiring after successfully leading Washington, D.C.’s largest and busiest hospital since 2010. In announcing Mr. Sullivan’s retirement, M. Joy Drass, MD, MedStar’s Executive Vice President and Chief Operating Officer, expressed “immense gratitude for his outstanding leadership during the past eight years.” Among other accomplishments, she cited his role in developing MedStar Heart & Vascular Institute and expanding it as a system-wide service line, the integration of the hospital’s cancer services into the MedStar Georgetown Cancer Institute, and the development of a world-class multi-disciplinary stroke program.

Dr. Argyros, who joined the hospital in 2012 and was named Senior Vice President of Medical Affairs and Chief Medical Officer in 2014, has made a “prompt and lasting impact on quality, patient safety, medical education, and research” at the Hospital Center. “His partnership with … physicians and nurses to reduce Central Line-Associated Bloodstream Infections (CLABSIs) is a system case study for improvement through multi-disciplinary teamwork,” Dr. Drass said in the announcement. She also commended Dr. Argyros for his leadership in guiding the hospital team through recent high-profile patient care experiences, including the intensive trauma and post-operative care that saved the life of Congressman Steve Scalise last June.

Prior to joining MedStar, Dr. Argyros spent 25 years in the Medical Corps of the U.S. Army, serving as Chief of Medicine at Walter Reed Army Medical Center and Director of Education, Training and Research for the National Capital Region. 

About MedStar Washington Hospital Center
MedStar Washington Hospital Center is a 912-bed, major teaching and research hospital. It is the largest private, not-for-profit hospital in the nation’s capital, among the 100 largest hospitals in the nation and a major referral center for treating the most complex cases. U.S.News & World Report consistently ranks the hospital’s cardiology and heart surgery program as one of the nation’s best. It operates MedSTAR, a nationally-verified level I trauma center with a state-of-the-art fleet of helicopters and ambulances, and also operates the region’s only adult Burn Center.

About MedStar Health
MedStar Health is a not-for-profit health system dedicated to caring for people in Maryland and the Washington, D.C., region, while advancing the practice of medicine through education, innovation and research. MedStar’s 30,000 associates, 6,000 affiliated physicians, 10 hospitals, ambulatory care and urgent care centers, and the MedStar Health Research Institute are recognized regionally and nationally for excellence in medical care. As the medical education and clinical partner of Georgetown University, MedStar trains more than 1,100 medical residents annually. MedStar Health’s patient-first philosophy combines care, compassion and clinical excellence with an emphasis on customer service. For more information, visit